Dell Precision Rack 7910 Owner's Manual Regulatory Model: E31S Regulatory Type: E31S001 August 2021 Rev.
Contents Chapter 1: Working on your computer............................................................................................7 Turning Off Your Computer.............................................................................................................................................. 7 Chapter 2: LCD panel features...................................................................................................... 8 Home screen...........................................................
Removing the cooling-fan assembly............................................................................................................................. 34 Installing the cooling-fan assembly............................................................................................................................... 36 Internal USB memory key (optional)............................................................................................................................
Installing the hard-drive backplane .............................................................................................................................. 74 Control panel assembly.................................................................................................................................................... 75 Removing the control panel .....................................................................................................................................
Chapter 7: Jumpers and connectors............................................................................................ 96 System board jumper settings....................................................................................................................................... 96 System board connectors............................................................................................................................................... 96 Disabling a forgotten password................
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2016 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws.
1 Working on your computer Turning Off Your Computer About this task CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer. Steps 1. Shut down the operating system: ● In Windows 8: ○ Using a touch-enabled device: a. Swipe in from the right edge of the screen, opening the Charms menu and select Settings. and then select Shut down b. Select the ○ Using a mouse: a. Point to upper-right corner of the screen and click Settings. b.
2 LCD panel features NOTE: The LCD panel is present only on Precision Rack 7910 The LCD panel of your system provides system information and status and error messages to indicate if the system is operating correctly or if the system needs attention. For more information on error messages, see the Dell Event and Error Messages Reference Guide at dell.com/esmmanuals. ● The LCD backlight lights blue during normal operating conditions and lights amber to indicate an error condition.
Setup menu NOTE: When you select an option in the Setup menu, you must confirm the option before proceeding to the next action. Option Description iDRAC Select DHCP or Static IP to configure the network mode. If Static IP is selected, the available fields are IP, Subnet (Sub), and Gateway (Gtw). Select Setup DNS to enable DNS and to view domain addresses. Two separate DNS entries are available. Set error Select SEL to view LCD error messages in a format that matches the IPMI description in the SEL.
Table 2. Documentation matrix (continued) To... Refer to... Launch, enable and disable Lifecycle Controller, know the features, use and troubleshoot Lifecycle Controller Dell Lifecycle Controller User’s Guide at dell.com/ esmmanuals Use Lifecycle Controller Remote Services Dell Lifecycle Controller Remote Services Quick Start Guide at dell.com/esmmanuals Set up, use, and troubleshoot OpenManage Server Administrator Dell OpenManage Server Administrator User’s Guide at dell.
3 Hard drive indicator codes Figure 2. Hard drive indicators 1. hard drive activity indicator 2. hard drive status indicator 3. hard drive NOTE: If the hard drive is in Advanced Host Controller Interface (AHCI) mode, the status indicator (on the right side) does not function and remains off. Table 3. Hard drive indicator codes Drive-status indicator pattern (RAID only) Condition Blinks green two times per second Identifying drive or preparing for removal. Off Drive ready for insertion or removal.
4 Installing and removing system components Safety instructions NOTE: Whenever you need to lift the system, get others to assist you. To avoid injury, do not attempt to lift the system by yourself. WARNING: Opening or removing the system cover when the system is on may expose you to a risk of electric shock. CAUTION: Do not operate the system without the cover for a duration exceeding five minutes. CAUTION: Many repairs may only be done by a certified service technician.
For how-to videos, documentation, and troubleshooting solutions, scan this QR code, or click here: http://www.Dell.com/QRL/ Workstation/R7910 System Overview Figure 3. Front and Back View Table 4. Features and indicators of Precision 7910. Item Indicator, Button, or Connector 1 Power-on indicator, power button Icon Description The power-on indicator lights when the system power is on. The power button controls the power supply output to the system.
Table 4. Features and indicators of Precision 7910. (continued) Item Indicator, Button, or Connector 2 NMI button Icon Description Used to troubleshoot software and device driver errors when running certain operating systems. This button can be pressed using the end of a paper clip. Use this button only if directed to do so by qualified support personnel or by the operating system documentation.
Table 4. Features and indicators of Precision 7910. (continued) Item Indicator, Button, or Connector Icon Description If the system stops responding during POST, press and hold the system ID button for more than five seconds to enter BIOS progress mode. To reset iDRAC (if not disabled in F2 iDRAC setup) press and hold the button for more than 15 seconds. 14 System identification connector Connects the optional system status indicator assembly through the optional cable management arm.
Removing the system cover Prerequisites 1. 2. 3. 4. 5. 6. Ensure that you read the Safety instructions. Turn off the system, including any attached peripherals. Disconnect the system from the electrical outlet and peripherals. Rotate the latch release lock counter clockwise to the unlocked position. Lift the latch and rotate the latch toward the back of the system. Hold the cover on both sides, and lift the cover away from the system. 1. system cover 2. latch 3.
To see a video on removing and installing System Cover, scan this QR code, or click here: http://www.Dell.com/QRL/ Workstation/R7910/Cover Steps 1. Align the slots of the system cover with the tabs on the chassis. 2. Press the cover release latch, and push the cover toward the front of the chassis until the latch locks into place. 3. Turn the latch release lock clockwise to the locked position. 4. Install the optional bezel. 5.
Figure 4. Inside the system—Precision Rack 7910 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
Cooling shroud Removing the cooling shroud Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. 1. Ensure that you read the Safety instructions. 2.
2. Align the tabs on the cooling shroud with the securing slots on the chassis. 3. Lower the cooling shroud into the chassis until it is firmly seated. 4. Follow the procedure listed in After working inside your system. System memory Your system supports DDR4 registered DIMMs (RDIMMs), and load reduced DIMMs (LRDIMMs). NOTE: MT/s indicates DIMM speed in MegaTransfers per second.
Memory channels are organized as follows: Processor 1 channel 0: slots A1, A5, and A9 channel 1: slots A2, A6, and A10 channel 2: slots A3, A7, and A11 channel 3: slots A4, A8, and A12 Processor 2 channel 0: slots B1, B5, and B9 channel 1: slots B2, B6, and B10 channel 2: slots B3, B7, and B11 channel 3: slots B4, B8, and B12 Table 5. Memory population DIMM Type DIMMs Populated/ Channel Operating Frequency (in MT/s) Maximum DIMM Rank/Channel 1.
Table 5. Memory population (continued) DIMM Type DIMMs Populated/ Channel Operating Frequency (in MT/s) Maximum DIMM Rank/Channel 1.2 V LRDIMM 1 2133, 1866, 1600, 1333 Quad rank 2 2133, 1866, 1600, 1333 Quad rank 3 1866, 1600, 1333 Quad rank General memory module installation guidelines This system supports Flexible Memory Configuration, enabling the system to be configured and run in any valid chipset architectural configuration.
Table 6.
Table 7.
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system. 3. Remove the cooling shroud. NOTE: The memory modules are hot to touch for some time after the system has been powered down. Allow the memory modules to cool before handling them.
Installing memory modules Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. 1. 2. 3. 4. Ensure that you read the Safety instructions.
Figure 7. Installing the memory module a. memory module b. alignment key c. memory-module socket ejector (2) When the memory module is properly seated in the socket, the levers on the memory module socket align with the levers on the other sockets that have memory modules installed. 6. Repeat steps 4 and 5 of this procedure to install the remaining memory modules. Next steps 1. Install the cooling shroud. 2. Follow the procedure listed in After working inside your system . 3.
All hard drives are connected to the system board through the hard-drive backplane. Hard drives are supplied in hard-drive carriers that fit in the hard-drive slots. CAUTION: Before attempting to remove or install a hard drive while the system is running, see the documentation for the storage controller card to ensure that the host adapter is configured correctly to support hard drive removal and insertion. CAUTION: Do not turn off or reboot your system while the hard drive is being formatted.
3. Insert the hard-drive blank into the hard-drive slot until the release button clicks into place. 4. If applicable, install the front bezel. Removing Hard Drive Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
Installing Hard Drive Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
Figure 10. Removing and installing a hard drive into a hard-drive carrier a. screw (4) b. hard drive c. hard-drive carrier Installing a hard drive into a hard-drive carrier Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
Note the routing of the power/data cable on the side of the system as you remove them from the system board and drive. You must route these cables properly when you replace them to prevent them from being pinched or crimped. 2. To release the optical drive, press the release tab. 3. Slide the optical drive out of the system until it is free of the optical-drive slot. 4. If you are not adding a new optical drive, install the optical drive blank. Figure 11. Removing and installing the optical drive a.
Cooling fans Your system supports six hot-swappable cooling fans. NOTE: In the event of a problem with a particular fan, the fan number is referenced by the system management software, allowing you to easily identify and replace the proper fan by noting the fan numbers on the cooling-fan assembly. Removing a cooling fan Prerequisites 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system.
4. Replace the cooling fan. 5. Follow the procedure listed in After working inside your system. Installing a cooling fan Prerequisites 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system. CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
2. Lift the cooling-fan assembly out of the chassis. Figure 13. Removing and installing the cooling-fan assembly 1. cooling-fan assembly 3. release lever (2) 5. cooling-fan connector (6) 2. cooling fan (6) 4. guide pin on the system board (2) 6. guide pin on the chassis (6) To see a video on removing and installing a cooling-fan assembly, click http://www.Dell.com/QRL/Server/PER730/ Fans or scan the following QR code. Next steps 1. Replace the cooling-fan assembly. 2.
Installing the cooling-fan assembly Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. 1. Ensure that you read the Safety Instructions. 2.
2. If installed, remove the USB key. 3. Insert the new USB key into the USB connector. Figure 14. Replacing the internal USB key a. USB memory key b. USB memory key connector Next steps 1. Follow the procedure listed in After working inside your system. 2. While booting, press to enter the System Setup and verify that the USB key is detected by the system. PCIe card holder Removing the PCIe card holder Prerequisites 1. Ensure that you read the Safety instructions. 2.
Figure 15. Removing and installing the PCIe card holder a. PCIe card holder b. release tab Next steps 1. Replace the PCIe card holder. 2. Follow the procedure listed in After working inside your system. To see a video on how to remove & install a PCI card and riser, scan this QR code, or click here: http://www.Dell.com/QRL/ Workstation/R7910/PCI Installing the PCIe card holder Prerequisites 1. Ensure that you read the Safety instructions. 2.
2. Follow the procedure listed in After working inside your system. To see a video on how to remove & install a PCI card and riser, scan this QR code, or click here: http://www.Dell.com/QRL/ Workstation/R7910/PCI Opening and closing the PCIe card holder latch Prerequisites 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system. CAUTION: Many repairs may only be done by a certified service technician.
Cable retention bracket Removing the cable retention bracket Prerequisites 1. 2. 3. 4. 5. Ensure that you read the Safety instructions. Follow the procedure listed in Before working inside your system. Remove the cooling shroud. Remove the PCIe card holder. Remove all cables routed through the cable retention bracket. CAUTION: Many repairs may only be done by a certified service technician.
2. Follow the procedure listed in Before working inside your system. 3. Remove the cooling shroud. 4. Remove the PCIe card holder. CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
Removing an expansion card from expansion-card riser 2 or 3 Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. 1.
Figure 18. Removing and installing an expansion card from expansion-card riser 2 or 3 1. expansion card 3. expansion-card riser 5. expansion-card connector 2. expansion-card latch 4. power connector (for GPU cards) Next steps To see a video on how to remove & install a PCI card and riser, scan this QR code, or click here: http://www.Dell.com/QRL/ Workstation/R7910/PCI Follow the procedure listed in After working inside your system.
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. Steps 1. Unpack the expansion card and prepare it for installation. For instructions, see the documentation accompanying the card. 2. Lift the expansion-card latch and remove the filler bracket. 3.
NOTE: You must install a filler bracket over an empty expansion card slot to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system. Figure 19. Removing and installing an expansion-card from expansion-card riser 1 1. tab A 3. expansion-card connector 5. latch 2. expansion-card riser 1 cage 4. tab B 6. expansion card Next steps 1. Install the expansion-card riser. 2.
3. Remove the expansion-card riser. Pull straight up on the riser using the blue touch points on the top of the riser CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
Figure 20. Removing and installing the riser 1 blank a. slot on the chassis b. tab (2) c. riser 1 blank Installing the riser 1 blank Prerequisites 1. Align the blank with the slot on the chassis. 2. Insert it into the chassis until it clicks into place. Removing expansion-card risers Prerequisites CAUTION: Many repairs may only be done by a certified service technician.
NOTE: To ensure proper system cooling, the riser 1 blank must be installed in the riser 1 slot. Remove the riser 1 blank only if you are installing riser 1. Figure 21. Removing and installing the expansion card riser 1 1. expansion-card riser 1 cage 3. riser guide-back (right) 5. expansion-card riser 1 connector 2. expansion-card riser 1 4. riser guide-back (left) 6. riser guide-front Figure 22. Identifying connectors on the expansion card riser 1 a. expansion-card slot 1 b.
c. expansion-card slot 3 Figure 23. Removing and installing the expansion card riser 2 1. power connector (for GPU cards) 3. riser guide-back 5. riser guide-front 2. expansion-card riser 2 4. expansion-card riser 2 connector Figure 24. Identifying connectors on the expansion card riser 2 a. expansion-card slot 4 b. expansion-card slot 5 c.
Figure 25. Removing and installing the expansion card riser 3 1. riser guide-front 3. expansion-card riser 3 5. expansion-card riser 3 connector 2. power connector (for GPU cards) 4. riser guide-back Figure 26. Identifying connectors on the expansion card riser 3 (default) a. expansion-card slot 6 b. expansion-card slot 7 c.
Figure 27. Identifying connectors on the expansion card riser 3 (alternate) a. expansion-card slot 6 b. power connector (for GPU cards) Next steps 1. If applicable, remove or install an expansion card on the riser. 2. If applicable, replace the expansion-card riser. 3. Follow the procedure listed in After working inside your system. Installing expansion-card risers Prerequisites 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system. 3.
● All GPU cards must be of the same type and model. ● You can install up to two double-wide GPU cards. NOTE: Two double-wide GPU cards configuration requires optional riser 3. ● You can install up to four single-wide GPU cards. Installing a GPU card Prerequisites 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system. CAUTION: Many repairs may only be done by a certified service technician.
5. If you are removing the card permanently, install a metal filler bracket over the empty slot opening and close the expansioncard locking tabs. NOTE: You must install a filler bracket over an empty expansion card slot to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system. Figure 28. Removing and installing the GPU card 1. expansion-card locking tab (3) 3.
Figure 29. Removing and installing the SD vFlash media card a. SD vFlash media card b. SD vFlash media-card slot 3. To install an SD vFlash media card, with the label side facing up, insert the contact-pin end of the SD vFlash media card into the card slot on the module. NOTE: The slot is keyed to ensure correct insertion of the card. 4. Press the card inward to lock it into the slot. Internal dual SD module (optional) The Internal Dual SD Module (IDSDM) card provides two SD card slots.
Installing an internal SD card Prerequisites 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system. CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
Steps 1. Locate the internal dual SD module on the system board. 2. If installed, remove the SD card(s). 3. Hold the plastic pull tab and pull the dual SD module out of the system board. Figure 30. Removing and installing the Internal Dual SD Module (IDSDM) 1. Internal Dual SD module 3. SD card (2) 5. SD card slot 1 2. LED status indicator (2) 4. SD card slot 2 6. IDSDM connector The following table describes the IDSDM indicator codes.
Convention IDSDM indicator code Condition E Not lit Indicates that the card is missing or is booting Next steps Follow the procedure listed in After working inside your system. To see a video on how to remove & install the internal dual SD module and SD cards, scan this QR code, or click here: http:// www.Dell.com/QRL/Workstation/R7910/IDSM Installing the internal dual SD module Prerequisites 1. Ensure that you read the Safety instructions. 2.
Integrated storage controller card Your system includes a dedicated expansion card slot on the system board for an integrated controller card. The integrated storage controller card provides the integrated storage subsystem for the internal hard drives in your system. The controller supports SAS and SATA hard drives and also enables you to set up the hard drives in RAID configurations. The RAID configurations depend on the version of the storage controller included with your system.
Figure 31. Removing and installing the integrated storage controller card 1. integrated storage controller cable 3. integrated storage-controller card connector on the system board 2. integrated storage controller card 4. integrated storage controller card holder Next steps 1. Replace the expansion-card riser 1. 2. Replace the cooling shroud. 3. Follow the procedure listed in After working inside your system. Installing the integrated storage controller card Prerequisites 1. 2. 3. 4. 5.
Steps 1. Align the end of the integrated storage-controller card opposite the connector with the integrated storage-controller card holder. 2. Lower the connector side of the integrated storage-controller card into the integrated storage-controller card connector on the system board. Ensure that the tabs on the system board align with the screw holes on the integrated storage-controller card. 3. Align the screws on the integrated storage-controller card cable with the screw holes on the connector. 4.
Figure 32. Removing and installing the Network Daughter Card (NDC) 1. captive screw socket (2) 3. captive screw (2) 5. network daughter card 2. connector on the system board 4. touch point (2) 6. back panel slot for Ethernet connectors Next steps 1. Replace the network daughter card. 2. Follow the procedure listed in After working inside your system. To see a video on how to remove & install the network daughter card, scan this QR code, or click here: http:// www.Dell.
Installing the network daughter card Prerequisites 1. 2. 3. 4. Ensure that you read the Safety instructions. Follow the procedure listed in Before working inside your system. If applicable, remove the expansion card(s) in the expansion-card riser 2. Keep the #1 Phillips screwdriver handy. CAUTION: Many repairs may only be done by a certified service technician.
2. Keep the #2 Phillips screwdriver handy. 3. If you are upgrading your system, download the latest system BIOS version from dell.com/support and follow the instructions included in the compressed download file to install the update on your system. NOTE: You can update the system BIOS using the Lifecycle Controller. 4. Follow the procedure listed in Before working inside your system 5. If installed, remove the full-length PCIe card(s). 6. Remove the cooling shroud.
5. unlock icon 2. To remove the processor: a. Release the open first socket-lever near the unlock icon by pushing the lever down and out from under the tab. b. Similarly, release the close first socket-release lever near the lock icon the tab. Rotate the lever 90 degrees upward. c. Lower the open first socket-release lever to lift the processor shield. by pushing the lever down and out from under Figure 34. Removing and installing a processor 1. 3. 5. 7.
Installing a processor Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. 1. Ensure that you read the Safety instructions. 2.
a. If applicable, remove the existing thermal grease from the heat sink using a clean lint-free cloth. b. Apply thermal grease on the top of the processor. Use the thermal-grease syringe included with your processor kit. CAUTION: Applying too much thermal grease can result in excess grease coming in contact with and contaminating the processor socket. Figure 35. Applying thermal grease on the top of the processor i. processor ii. thermal grease iii.
NOTE: When two identical PSUs are installed, power supply redundancy (1+1 – with redundancy or 2+0 – without redundancy) is configured in system BIOS. In redundant mode, power is supplied to the system equally from both PSUs when Hot Spare is disabled. When Hot Spare is enabled, one of the PSUs will be put into standby when system utilization is low in order to maximize efficiency. NOTE: For AC power supply units, use only power supply units with the Extended Power Performance (EPP) label on the back.
2. power supply bay Installing the power supply unit blank Install the power supply unit blank only in the second power supply unit bay. Steps 1. Align the blank with the power supply unit bay. 2. push it into the chassis until it clicks into place. Removing an AC power supply unit Prerequisites CAUTION: Many repairs may only be done by a certified service technician.
Related video http://www.Dell.com/QRL/Server/PER730/PSU Results To see a video on how to remove & install the power supplies, scan this QR code, or click here: http://www.Dell.com/QRL/ Workstation/R7910/PSU Installing an AC power supply unit Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
Results To see a video on how to remove & install the power supplies, scan this QR code, or click here: http://www.Dell.com/QRL/ Workstation/R7910/PSU System battery Replacing the system battery Prerequisites 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system. 3. Remove the cooling shroud. NOTE: There is a danger of a new battery exploding if it is incorrectly installed.
Figure 38. Removing the system battery a. positive side of the battery connector b. system battery c. negative side of the battery connector 3. To install a new system battery, hold the battery with the "+" facing up and slide it under the securing tabs. 4. Press the battery into the connector until it snaps into place. Figure 39. Installing the system battery a. system battery b. positive side of the battery connector Next steps 1. 2. 3. 4. 5. Install the cooling shroud.
To see a video on how to remove & install the system battery, scan this QR code, or click here: http://www.Dell.com/QRL/ Workstation/R7910/Battery Hard-drive backplane Depending on your system configuration: Precision Rack 7910 2.5 inch (x8) HHD/SSD Removing the hard-drive backplane Prerequisites 1. 2. 3. 4. 5. Ensure that you read the Safety instructions. Follow the procedure listed in Before working inside your system. Remove the cooling shroud. Remove the cooling-fan assembly. Remove all hard drives.
Figure 40. Removing and installing the 2.5 inch (x8) HHD/SSD backplane—Precision Rack 7910 1. hard-drive backplane connectors (8) 3. release tab 5. SAS cable 2. left ear control panel cable 4. backplane power cable 6.
1. hard-drive backplane 3. system board 2. backplane signal connector 1 4. integrated storage controller card Installing the hard-drive backplane Prerequisites 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system. CAUTION: Many repairs may only be done by a certified service technician.
Next steps 1. 2. 3. 4. Replace the cooling-fan assembly. Replace the cooling shroud. Install the hard drives in their original locations. Follow the procedure listed in After working inside your system . Control panel assembly Removing the control panel Prerequisites 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system. CAUTION: Many repairs may only be done by a certified service technician.
Figure 41. Removing and installing the control panel—2.5 inch hard-drive system 1. control panel 3. control-panel connector cable 5. screw (2) 2. control-panel board 4. USB connector cable 6. vFlash media connector cable Steps 1. Locate and press the tabs on the information tag. 2. Push the information tag out of the slot to remove it from the control panel. NOTE: Retain the information tag for replacement in the new control panel.
Figure 42. Removing and installing the information tag a. information tag b. tab c. slot 3. Remove the retaining screw that secures the control panel to the chassis. 4. Push the control panel out of the chassis. 5. Slide the control panel into the chassis and tighten the screw. Installing the control panel Prerequisites 1. Ensure that you read the Safety instructions. CAUTION: Many repairs may only be done by a certified service technician.
System board Removing the system board Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
Figure 43. Removing and installing the system board a. release pin b. system board c. system-board holder Next steps 1. Replace the system board. 2. Follow the procedure listed in After working inside your system. To see a video on how to remove & install the system board, scan this QR code, or click here: http://www.Dell.
Installing the system board Prerequisites 1. Ensure that you read the Safety instructions. 2. Follow the procedure listed in Before working inside your system. CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
Entering the system service tag by using System Setup If Easy Restore fails to restore the service tag, use System Setup to enter the service tag. Steps 1. Turn on the system. 2. Press F2 to enter System Setup. 3. Click Service Tag Settings. 4. Enter the service tag. NOTE: You can enter the service tag only when the service tag field is empty. Ensure that you enter the correct service tag. After the service tag is entered, it cannot be updated or changed. 5. Click Ok. 6.
4. While booting, press to enter the Boot Manager. 5. Go to System Utilities → BIOS Update File Explorer, and select the plugged in USB device. 6. From the BIOS Update File Explorer, select the BIOS update file. The BIOS Update Utility with the current and new version of BIOS is displayed. 7. Select Continue BIOS Update to install the BIOS update. Re-enabling the TPM for TXT users Steps 1. While booting your system, press F2 to enter System Setup. 2.
5 Troubleshooting your system Safety first—for you and your system CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
6. Power down all attached USB devices and disconnect them from the system. 7. Reboot the system and, if your keyboard is functioning, enter the System Setup. 8. Verify that all USB ports are enabled on the Integrated Devices screen, in the System Setup options. 9. Check if USB 3.0 is enabled in System Setup. If it is enabled, disable it and restart your system. If your keyboard is not functioning, you can also use remote access. 10.
If the problem is resolved, replace the interface cable with a known good cable. 3. Turn off the system and the serial device, and swap the serial device with a comparable device. 4. Turn on the system and the serial device. Troubleshooting a NIC Steps 1. Run the appropriate diagnostic test. See Using System Diagnostics for available diagnostic tests. 2. Reboot the system and check for any system messages pertaining to the NIC controller. 3.
7. Turn on the system and attached peripherals. 8. Run the appropriate diagnostic test. For more information, see Using System Diagnostics. Next steps Troubleshooting a damaged system Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
If the date and time are not correct in the System Setup, check the SEL for system battery messages. Troubleshooting power supply units Prerequisites CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
● The expansion card installation guidelines have been followed. Additional cooling can be added by one of the following methods: From the iDRAC Web GUI: 1. Click Hardware > Fans > Setup. 2. From the Fan Speed Offset drop-down list, select the cooling level needed or set the minimum fan speed to a custom value. From F2 System Setup: 1. Select iDRAC Settings > Thermal, and set a higher fan speed from the fan speed offset or minimum fan speed. From RACADM commands: 1. Run the command racadm help system.
7. Check the memory channels and ensure that they are populated correctly. NOTE: See the system event log or system messages for the location of the failed memory module. Reinstall the memory device. 8. Reset the memory modules in their sockets. 9. Install the system. 10. Enter the System Setup and check the system memory setting. If the problem is not resolved, proceed with the next step. 11. Remove the system cover. 12.
Steps 1. Enter System Setup, and ensure that the Internal SD Card Port is enabled. 2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. 3. Remove the system cover. NOTE: When an SD card failure occurs, the internal dual SD module controller notifies the system. On the next restart, the system displays a message indicating the failure.
Steps 1. Run the appropriate diagnostic test. For more information, see Using System Diagnostics. Depending on the results of the diagnostics test, proceed as needed through the following steps. 2. If your system has a RAID controller and your hard drives are configured in a RAID array, perform the following steps: a. Reboot the system and press during system startup to run the Lifecycle Controller, and then run the Hardware Configuration wizard to check the RAID configuration.
NOTE: When troubleshooting an expansion card, see the documentation for your operating system and the expansion card. Steps 1. Run the appropriate diagnostic test. For more information, see Using System Diagnostics. 2. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet. 3. Remove the system cover. 4. Ensure that each expansion card is firmly seated in its connector. 5. Install the system cover. 6.
Errors That Soft Halts the System The following is a list of BIOS error messages that will cause a soft halt of the system and then the user will be prompted to press F1 to continue or F2 to enter the system setup: ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Alert! Air temperature sensor not detected. Alert! Card-cage fan failure. Alert! CPU 0 fan failure. Alert! Chipset heatsink not detected. Alert! Operating is debug mode. Please populate memory in pairs for normal operation. Alert! Power supply fan failure.
6 Using system diagnostics If you experience a problem with your system, run the system diagnostics before contacting Dell for technical assistance. The purpose of running system diagnostics is to test your system hardware without requiring additional equipment or risking data loss. If you are unable to fix the problem yourself, service and support personnel can use the diagnostics results to help you solve the problem.
Menu Description Results Displays the results of all tests that are executed. System health Provides the current overview of the system performance. Event log Displays a time-stamped log of the results of all tests run on the system. This is displayed if at least one event description is recorded.
7 Jumpers and connectors System board jumper settings Table 9. System board jumper settings Jumper Setting PWRD_EN Description The password reset feature is enabled (pins 2–4). BIOS local access is unlocked at the next AC power cycle. The password reset feature is disabled (pins 4–6). NVRAM_CLR The configuration settings are retained at the next system boot (pins 3–5). The configuration settings are cleared at system boot (pins 1–3). System board connectors Figure 44.
Item Connector Description 1 J_BP_SIG1 Backplane signal connector 1 2 J_PS_2 PSU 2 connector 3 J_BP_SIG0 Backplane signal connector 0 4 J_BP0 Backplane power connector 0 5 J_SATA_CD Optical drive SATA connector 6 J_SATA_TBU Tape backup unit SATA connector 7 J_TBU Tape backup unit power connector 8 J_PS_1 PSU 1 connector 9 J_IDSDM Internal dual SD module connector 10 J_NDC Network daughter card connector 11 J_USB USB connector 12 J_VIDEO_REAR Video connector 13 J_COM1
Item Connector Description 39 A10, A6, A2, A9, A5, A1 Memory module sockets 40 J_FAN2U_3 Cooling fan connector 41 J_BP1 Backplane power connector 42 J_FAN2U_2 Cooling fan connector 43 A3, A7, A11, A4, A8, A12 Memory module sockets 44 J_FAN2U_1 Cooling fan connector 45 J_CTRL_PNL Control panel signal connector 46 CPU 1 Processor 1 47 J_FP_USB Front-panel USB connector 48 Tera2 host card Power connector Disabling a forgotten password The software security features of the syste
8 Specifications NOTE: Offerings may vary by region. The following specifications are only those required by law to ship with your computer. For more information about the configuration of your computer, go to Help and Support in your Windows operating system and select the option to view information about your computer. Table 10.
Table 13. Video (continued) Video Specification Video memory 16 MB Table 14. Network Network Specification Integrated Intel 82579 and Intel 82574 Ethernet controllers Table 15. Expansion Bus Expansion Bus Specification Bus type: PCI Express Generation 3 Bus speed: PCI: 133 MB/s PCI Express: ● PCIe 3.0 x16 slots bidirectional speed - 16 GB/s ● PCIe 3.0 x8-slots bidirectional speed - 8 GB/s ● PCIe 3.0 x4 slots bidirectional speed - 4 GB/s ● PCIe 2.0 x4-slots bidirectional speed - 2 GB/s PCI 2.
Table 17. Drives (continued) Drives Specification Optical drive One optional SATA DVD-ROM drive or DVD+/-RW drive. NOTE: DVD devices are data only. Table 18. External Connectors External connectors Specification NIC Four 1 Gbps ortwo 1 Gbps plus two 10 Gbps Network two RJ-45 Serial 9-pin, DTE, 16550-compatible USB Two 4-pin, USB 3.0 compliant Two 4 pin USB 2.
Table 20. Controls and Lights Controls and Lights Specification Power button light: off — system is off or unplugged. solid blue light — computer is operating normally. blinking blue light — computer is in stand by. solid amber light — the computer does not start, indicating a problem with the system board or power supply. blinking amber light — indicates a problem has occurred with the system board. System ID button and light blue light — flashes (front and back of chassis) when the button is pressed.
Table 23. Environmental (continued) Environmental Specification Operating 10 °C to 35 °C (50 °F to 95 °F) Storage -40 °C to 65 °C (-40 °F to 149 °F) Maximum 20°C/h (36°F/h) Restriction K6000/K20 cards + 160 w processor is limited to 30 c operating temperature maximum. Relative humidity (maximum): Operating 5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere must be non-condensing at all times. Storage 10% to 80% Relative Humidity with 29°C (84.2°F) maximum dew point.
9 System Setup Boot Menu As with previous workstation platforms, this computer includes a one-time boot menu. This feature gives users a quick and convenient mechanism to bypass the System Setup-defined boot device order and boot directly to a specific device (for example: floppy, CD-ROM, or hard drive).
NOTE: The utility partition is not protected from debug routines or the FDISK utility. About system setup By using the System Setup screen, you can configure the BIOS settings, iDRAC settings, and device settings of your system. NOTE: Help text for the selected field is displayed in the graphical browser by default. To view the help text in the text browser, press F1. You can access system setup in two ways: ● Standard graphical browser—The browser is enabled by default.
Menu Item Description Processor Settings Displays information and options related to the processor such as speed, cache size, and so on. SATA Settings Displays options to enable or disable the integrated SATA controller and ports. Boot Settings Displays options to specify the boot mode (BIOS or UEFI). Enables you to modify UEFI and BIOS boot settings. Integrated Devices Displays options to enable or disable integrated device controllers and ports, and to specify related features and options.
Memory Settings screen details You can use the Memory Settings screen to view all the memory settings as well as to enable or disable specific memory functions such as system memory testing and node interleaving. About this task You can view the Memory Setting screen by clicking System Setup Main Menu > System BIOS > Memory Settings. The Memory Settings screen details are explained as follows: Menu Item Description System Memory Size Displays the amount of memory installed in the system.
Menu Item Description Alternate RTID (Requestor Transaction ID) Setting Enables you to allocate more RTIDs to the remote socket, thereby increasing cache performance between the sockets or easing work in normal mode for NUMA. By default, the Alternate RTID (Requestor Transaction ID) Setting is set to Disabled. Virtualization Technology Enables or disables the additional hardware capabilities provided for virtualization. By default, the Virtualization Technology option is set to Enabled.
Menu Item Description Level 2 Cache Displays the total L2 cache. Level 3 Cache Displays the total L3 cache. Number of Cores Displays the number of cores per processor. SATA Settings screen details You can use the SATA Settings screen to view the SATA settings of SATA devices and enable RAID on your system. About this task You can view the SATA Settings screen by clicking System Setup Main Menu > System BIOS > SATA Settings. The SATA Settings screen details are explained below.
Menu Item Description Capacity Displays the total capacity of the hard drive. The field is undefined for removable media devices such as optical drives. Port E Sets the drive type of the selected device. For Embedded SATA settings in ATA mode, set this field to Auto to enable BIOS support. Set it to OFF to turn off BIOS support. For AHCI mode or RAID mode, BIOS always enables support. Model Displays the drive model of the selected device.
Boot Settings screen details You can use the Boot Settings screen to set the Boot mode to either BIOS or UEFI. It also allows you to specify the boot order. About this task You can view the Boot Settings screen by clicking System Setup Main Menu > System BIOS > Boot Settings. The Boot Settings screen details are explained as follows: Menu Item Description Boot Mode Enables you to set the boot mode of the system.
Menu Item Description NOTE: Selecting Only Back Ports On and All Ports Off will disable the USB management port and also restrict access to iDRAC features. Internal USB Port Enables or disables the internal USB port. By default, the option is set to Enabled. Integrated Network Card 1 Enables or disables the integrated network card. I/OAT DMA Engine Enables or disables the I/OAT option. Enable only if the hardware and software support the feature.
Menu Item Description 5. Slot 5 Boot Driver ● Enabled (default) ● Disabled 6. Slot 6 Boot Driver ● Enabled (default) ● Disabled 7. Slot 7 Boot Driver ● Enabled (default) ● Disabled Serial Communication screen details You can use the Serial Communication screen to view the properties of the serial communication port. About this task You can view the Serial Communication screen by clicking System Setup Main Menu > System BIOS > Serial Communication.
Menu Item Description System Profile Sets the system profile. If you set the System Profile option to a mode other than Custom, the BIOS automatically sets the rest of the options. You can only change the rest of the options if the mode is set to Custom. By default, the System Profile option is set to Performance Per Watt Optimized (DAPC). DAPC is Dell Active Power Controller. NOTE: The following parameters are available only when the System Profile is set to Custom.
System Security settings screen details You can use the System Security screen to perform specific functions such as setting the system password, setup password, and disabling the power button. About this task You can view the System Security screen by clicking System Setup Main Menu > System BIOS > System Security Settings.
Menu Item Description Secure Boot Policy Summary Views the list of certificates and hashes that secure boot uses to authenticated images. Secure Boot Custom Policy Settings Secure Boot Custom Policy Settings is displayed only when Secure Boot Policy is set to Custom. About this task In the System Setup Main Menu, click System BIOS > System Security > Secure Boot Custom Policy Settings.
Menu Item Description When enabled, In-System Characterization (ISC) executes during POST upon detecting relevant change(s) in system configuration to optimize system power and performance. ISC takes about 20 seconds to execute, and system reset is required for ISC results to be applied. The Enabled - No Reboot option executes ISC and continues without applying ISC results until the next time system reset occurs.
10 NIC indicator codes Figure 45. NIC indicators 1. link indicator 2. activity indicator Table 24. NIC indicators Convention Indicator Indicator code A Link and activity indicators are off The NIC is not connected to the network. B Link indicator is green The NIC is connected to a valid network at its maximum port speed (1 Gbps or 10 Gbps). C Link indicator is amber The NIC is connected to a valid network at less than its maximum port speed.
11 Power indicator codes Each AC power supply unit (PSU) has an illuminated translucent handle and each DC power supply unit (when available) has an LED that serves as an indicator to show whether power is present or a power fault has occurred. Figure 46. AC power supply unit status indicator 1.
Convention Power indicator pattern Condition CAUTION: AC power supplies support both 220 V and 110 V input voltages with the exception of Titanium power supplies, which support only 220 V. When two identical power supplies receive different input voltages, they can output different wattages, and trigger a mismatch. CAUTION: If two power supplies are used, they must be of the same type and have the same maximum output power.
12 Contacting Dell Contacting Dell Prerequisites NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. About this task Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: Steps 1. Go to Dell.com/support. 2.
