Dell EMC PowerEdge MX840c Installation and Service Manual Regulatory Model: E05B Series Regulatory Type: E05B001 April 2021 Rev.
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. 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. © 2019 - 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: About this document.................................................................................................... 6 Chapter 2: Dell EMC PowerEdge MX840c overview....................................................................... 7 Front view of the sled........................................................................................................................................................ 8 Inside the sled...........................................................
Drive backplane................................................................................................................................................................. 35 Drive backplane connectors......................................................................................................................................35 Removing the drive backplane.................................................................................................................................
Removing the mini Mezzanine card blank............................................................................................................. 84 Installing the mini Mezzanine card blank............................................................................................................... 85 Removing a mini Mezzanine card............................................................................................................................ 86 Installing a mini Mezzanine card................
1 About this document This document provides an overview about the PowerEdge MX840c sled, information on installing and replacing components, technical specifications, diagnostic tools, and guidelines to be followed while installing certain components. The PowerEdge MX840c is compatible with the PowerEdge MX7000 enclosure. For more information on the enclosure, refer to the Installation and Service Manual for the PowerEdge MX7000 at www.dell.com/poweredgemanuals.
2 Dell EMC PowerEdge MX840c overview The PowerEdge MX840c is a double-width compute sled and supports: ● Up to four Intel Xeon Scalable Processors ● Up to 48 DIMM slots ● Up to eight 2.5 inch SAS, SATA (HDD/SSD), or NVMe drives NOTE: All instances of SAS, SATA, NVMe hard drives, and SSDs are referred to as drives in this document, unless specified otherwise.
Front view of the sled The front view displays the features available on the front of the sled. Figure 1. Front view of the sled 1. 3. 5. 7. USB 3.0 port Drives Lever button System ID and status LED indicator 2. 4. 6. 8. iDRAC Direct (Micro-AB USB) port Release lever Information tag Power button For more information on the drives and ports, see the Dell EMC PowerEdge MX840c Technical Specifications on the product documentation page.
Figure 2. Inside the sled with PEM 1. 3. 5. 7. 9. Backplane Processor 3 socket Mezzanine card (Fabric A2 card) Power connector Mini Mezzanine card (Fabric C2 card) connector 2. 4. 6. 8. Processor expansion module (PEM) board Processor 4 socket Rotational guiding hook Mezzanine card (Fabric B2 card) 2. 4. 6. 8. 10. 12. Processor 1 socket Processor 2 socket Rotational guiding hook Mezzanine card (Fabric B1 card) iDRAC card System board Figure 3. Inside the sled with system board 1. 3. 5. 7. 9. 11. 13.
Locating the Service Tag of the sled The PowerEdge MX840c sled is identified by a unique Express Service Code and Service Tag number. The Express Service Code and Service Tag are found on the front of the enclosure by pulling out the Information Tag. Dell uses this information to route support calls to the appropriate personnel. Figure 4. Information Tag of the sled 1. Information Tag 2. Service Tag System information label Figure 5.
Figure 6.
Figure 7. PowerEdge MX840c system board connections Figure 8.
Figure 9. PowerEdge MX840c PEM removal Figure 10. PowerEdge MX840c mezzanine cards removal Figure 11. PowerEdge MX840c PERC cards removal Figure 12.
3 Initial system setup and configuration Topics: • • • Setting up your sled iDRAC configuration Options to install the operating system Setting up your sled Complete the following steps to set up your sled: Steps 1. Unpack the sled. 2. Remove the I/O connector cover from the sled connectors. CAUTION: While installing the sled, ensure that it is properly aligned with the slot on the enclosure to prevent damage to the sled connectors. 3. Install the sled in the enclosure. 4. Power on the enclosure.
Interfaces Document/Section Dell Lifecycle Controller See Dell Lifecycle Controller User’s Guide at www.dell.com/poweredgemanuals OME Modular See Dell OpenManagement Enterprise Modular User’s Guide at www.dell.com/openmanagemanuals iDRAC Direct See Dell Integrated Dell Remote Access Controller User's Guide at www.dell.
Table 2. Firmware and drivers Methods Location From the Dell EMC support site www.dell.com/support/home Using Dell Remote Access Controller Lifecycle Controller (iDRAC with LC) www.dell.com/idracmanuals Using Dell Repository Manager (DRM) www.dell.com/openmanagemanuals > Repository Manager Using Dell OpenManage Essentials www.dell.com/openmanagemanuals > OpenManage Essentials Using Dell OpenManage Enterprise www.dell.
4 Installing and removing sled components Topics: • • • • • • • • • • • • • • • • • • • • • • • • • Safety instructions Before working inside your sled After working inside your sled Recommended tools PowerEdge MX840c sled Sled cover Air shroud Processor expansion module Drives Drive backplane Cable routing Drive cage Battery backup unit Control panel System memory Processors and heat sinks iDRAC card PERC cards Optional Internal dual SD module M.
Before working inside your sled Prerequisites Follow the safety guidelines listed in the Safety instructions section. Steps 1. Power off the sled. 2. Remove the sled from the enclosure. 3. If applicable, install the I/O connector cover. CAUTION: To prevent damage to the I/O connectors on the sled, ensure that you cover the connectors when you remove the sled from the enclosure. 4. Remove the sled cover.
2. Power off the sled. Steps 1. Press the blue lever button on the sled to release the lever. 2. Holding the release lever, slide the sled out of the enclosure. Figure 13. Removing the sled from the enclosure NOTE: Support the sled with both hands while sliding it out of the enclosure. 3. Install the I/O connector cover on the sled. CAUTION: To protect the I/O connector pins, install the I/O connector cover every time a sled is removed from the enclosure.
Figure 14. Installing the I/O connector cover on the sled CAUTION: If you are permanently removing the sled, install a blank. Operating the enclosure for extended periods of time without a blank installed can cause the enclosure to overheat. NOTE: The color of the I/O connector cover may differ. Next steps 1. Install the sled or blank into the enclosure. Installing the sled into the enclosure Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. Steps 1.
Figure 15. Removing the I/O connector cover from the sled NOTE: The color of the I/O connector cover may differ. 2. Press the blue lever button on the sled to release the lever. 3. Holding the sled with two hands, align the sled with the bay in the enclosure and slide the sled into the enclosure until firmly seated. 4. Rotate the lever up until it clicks into place and secures the sled in the enclosure. Figure 16.
Next steps 1. Power on the sled. Sled cover The sled cover protects the components inside the sled and helps in maintaining air flow inside the sled. Removing the sled cover Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Power off the sled. 3. Remove the sled from the enclosure. Steps 1. Press the blue release tab on the sled cover and slide the cover towards the rear of the sled. 2. Hold the cover on both sides, and lift the cover away from the sled.
Steps 1. Align the tabs on the sled cover with the guide slots on the sled. 2. Slide the cover towards the front of the sled until it locks in place. Figure 18. Installing the sled cover Next steps 1. Install the sled into the enclosure. 2. Power on the sled.
Air shroud The air shroud aerodynamically directs the airflow across the entire sled. The airflow passes through all the critical parts of the sled thus allowing increased cooling. The PowerEdge MX840c sled has: ● Air shroud on the processor expansion module (PEM) ● Air shroud on the system board Removing the air shroud from the PEM Prerequisites CAUTION: Never operate your system with the air shroud removed. The system may get overheated quickly, resulting in shutdown of the system and loss of data. 1.
Steps 1. Align the tabs on the air shroud with the slots on the PEM. 2. Place the air shroud on the PEM. Figure 20. Installing the air shroud on the PEM Next steps 1. Follow the procedure listed in the After working inside your sled section. Removing the air shroud from the system board Prerequisites CAUTION: Never operate your system with the air shroud removed. The system may get overheated quickly, resulting in shutdown of the system and loss of data. 1.
Figure 21. Removing the air shroud from the system board Next steps 1. Install the air shroud on the system board. Installing the air shroud on the system board Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. Steps 1. Align the slots on the air shroud with the guide pins on the system board. 2. Lower the air shroud into the sled until it is firmly seated.
Figure 22. Installing the air shroud on the system board Next steps 1. Install the PEM. 2. Follow the procedure listed in the After working inside your sled section. Processor expansion module Removing the processor expansion module Prerequisites 1. 2. 3. 4. Follow the safety guidelines listed in the Safety instructions section. Follow the procedure listed in the Before working inside your sled section. Disconnect the cable connecting the processor expansion module (PEM) to the backplane.
Figure 23. Removing the PEM Next steps 1. Installing the processor expansion module. Installing the processor expansion module Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. Steps 1. Lift the processor expansion module (PEM) by holding the blue handle and release lever.
Figure 24. Installing the PEM Next steps 1. Connect the cable on the PEM to the backplane. 2. Install the air shroud on the PEM. 3. Follow the procedure listed in the After working inside your sled section. Drives Drive installation guidelines Drives are available in hot-swappable drive carriers that fit in the front drive slots of the PowerEdge MX840c sled.
CAUTION: Mixing drive blanks from previous generations of PowerEdge servers is not supported. Steps Press the release button, and slide the drive blank out of the drive slot. Figure 25. Removing a drive blank Next steps 1. Install a drive or a drive blank. Installing a drive blank Prerequisites Follow the safety guidelines listed in the Safety instructions section. CAUTION: Mixing drive blanks from previous generations of PowerEdge servers is not supported.
Figure 26. Installing a drive blank Removing a drive carrier Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Using the management software, prepare the drive for removal. If the drive is online, the green activity or fault indicator flashes while the drive is turning off. When the drive indicators are off, the drive is ready for removal. For more information, see the documentation for the storage controller.
Figure 27. Removing a drive carrier Next steps 1. Install a drive carrier. 2. If you are not replacing the drive carrier immediately, insert a drive blank in the empty drive slot to maintain proper sled cooling. Installing a drive carrier Prerequisites CAUTION: Before attempting to remove or install a 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 drive removal and insertion.
Steps 1. Press the release button on the front of the drive carrier to open the release handle. 2. Insert the drive carrier into the drive slot and slide until the drive carrier connects with the backplane. 3. Close the release handle of the drive carrier to lock the drive in place. Figure 28. Installing a drive carrier Removing a drive from the drive carrier Prerequisites Follow the safety guidelines listed in the Safety instructions section.
Figure 29. Removing a drive from the drive carrier Next steps 1. Install a drive into the drive carrier. Installing a drive into the drive carrier Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. CAUTION: Mixing drive carriers from other generations of PowerEdge servers is not supported. NOTE: When installing a drive into the drive carrier, ensure that the screws are torqued to 4 in-lbs. Steps 1.
Figure 30. Installing a drive into the drive carrier Drive backplane Drive backplane connectors Depending on the configuration, the drives supported on the PowerEdge MX840c sled are listed in the table. Table 3. Supported drives options for the PowerEdge MX840c sled Drives Specifications Eight drives Up to eight 2.5 inch (SAS, SATA, Nearline SAS, or NVMe) front accessible drives in slots 0 to 7. Dual processor sled NVMe drives are supported in the slots 4 to 7.
Figure 31. 6 x 2.5 inch drive backplane 1. AUX 3 cable connector 3. I2C cable connector 5. AUX 1 cable connector 2. SATA/SAS connector 4. AUX 2 cable connector 6. Power cable connector [BP PWR] Figure 32. 8 x 2.5 inch drive backplane 1. 3. 5. 7. AUX 4 cable connector SATA/SAS connector AUX 2 cable connector Power cable connector [BP PWR] 2. AUX 3 cable connector 4. I2C cable connector 6.
6. Disconnect the cables that are connected to the drive backplane. Steps 1. Using Phillips #2 screwdriver, loosen the two captive screws on the drive backplane. 2. Holding the edges, lift the backplane away from the sled. Figure 33. Removing the drive backplane Next steps 1. Install the drive backplane. Installing the drive backplane Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section.
Figure 34. Installing the drive backplane Next steps 1. 2. 3. 4. 5. 38 Connect all the cables to the drive backplane connectors. Install the drives. Install the PEM. Install the air shroud on the PEM. Follow the procedure listed in the After working inside your sled section.
Cable routing Figure 35. Cable routing - 6 x 2.5 inch drive backplane with PERC card Figure 36. Cable routing - 6 x 2.
Figure 37. Cable routing - 6 x 2.5 inch drive backplane Figure 38. Cable routing - 6 x 2.
Figure 39. Cable routing - 8 x 2.5 inch drive backplane with PERC card Figure 40. Cable routing - 8 x 2.
Figure 41. Cable routing - 8 x 2.5 inch drive backplane Figure 42. Cable routing - 8 x 2.5 inch drive backplane with PEM board Drive cage The drive cage contains the drives and the battery backup unit module. Removing the drive cage Prerequisites CAUTION: To prevent damage to the drives and backplane, you must remove the drives from the sled before removing the backplane.
NOTE: Observe the routing of the cables on the sled as you remove them from the sled. You must route these cables properly when you replace them to prevent the cables from being pinched or crimped. 1. 2. 3. 4. 5. 6. Follow the safety guidelines listed in the Safety instructions section. Follow the procedure listed in the Before working inside your sled section. Remove all the drives. Remove the PEM. Disconnect the cables that are connected to the drive backplane. Remove the drive backplane. Steps 1.
1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. Steps 1. Place the drive cage into the sled, aligning with the screw holes on the sled. 2. Using the Phillips #1 screwdriver, secure the drive cage with screws. Figure 44. Installing the drive cage Next steps 1. 2. 3. 4. 5. Install the drive backplane. Connect the cables to the drive backplane. Install the removed drives. Install the PEM.
Steps 1. Press the tab on the side and push the BBU module from the rear end of the drive cage to release the BBU module. 2. Holding the BBU module by the edges, slide the BBU module out of the drive cage. Figure 45. Removing the BBU module Next steps 1. Remove the BBU from the BBU cage. 2. Install the BBU module. Installing the BBU module Prerequisites 1. 2. 3. 4. Follow the safety guidelines listed in the Safety instructions section.
Figure 46. Installing the BBU module 3. Connect the cables on the BBU to the connectors on the system board. Next steps 1. Install the PEM. 2. Follow the procedure listed in the After working inside your sled section. Removing the BBU from the BBU cage Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. 3. Remove the battery backup unit module. Steps 1.
Figure 47. Removing the BBU from the BBU cage Next steps 1. Install the BBU into the BBU cage. Installing the BBU into the BBU cage Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. Steps 1. Slide the BBU into the BBU cage. 2. Using a Phillips #1 screwdriver, tighten the captive screw to secure the BBU to the BBU cage.
Figure 48. Installing the BBU into the BBU cage Next steps 1. Install the BBU module. Control panel A control panel enables you to manually control the inputs to the sled. The control panel features on the PowerEdge MX840c are: ● Power button ● iDRAC Direct port ● USB 3.0 port Removing the control panel Prerequisites 1. 2. 3. 4. 5. 6. 7. Follow the safety guidelines listed in the Safety instructions section. Follow the procedure listed in the Before working inside your sled section. Remove the PEM.
Figure 49. Removing the control panel Next steps 1. Install the control panel. Installing the control panel Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. Steps 1. Connect the control panel cable to the connector on the system board. 2. Align the control panel with the slots on the sled. 3. Using a Phillips #1 screwdriver, secure the control panel to the sled with the screws.
Figure 50. Installing the control panel Next steps 1. 2. 3. 4. 5. 6. Install the BBU module. Install the drive cage. Install the backplane. Install the drives. Install the PEM. Follow the procedure listed in the After working inside your sled section. System memory The sled supports DDR4 registered DIMMs (RDIMMs), load reduced DIMMs (LRDIMMs), Non-Volatile DIMMs (NVDIMM-Ns), and Intel Optane Data Center Persistent Memory Modules (DCPMMs) .
Your system contains 48 memory sockets that are split into two sets of 12 sockets, one set per processor. Each 12-socket set is organized into six channels. Six memory channels are allocated to each processor. In each channel, the release tabs of the first socket are marked white, and the second socket black. Figure 51.
Figure 52. Memory sockets on the PEM board Memory channels are organized as follows: Table 4.
Table 5. Memory population DIMM Type DIMM Ranking RDIMM 1R/2R 1.2 V 2933, 2666 LRDIMM 4R/8R 1.2 V 2666, 3200* Voltage Operating Frequency (in MT/s) NOTE: 3200*-Memory speed will be limited to 2933MT/s due to processor limitations. General memory module installation guidelines To ensure optimal performance of your system, observe the following general guidelines when configuring your system memory.
● When the DIMM quantity is 4 per processor, the population is slot 1, 2, 4, 5. ● When the DIMM quantity is 8 per processor, the population is slot 1, 2, 4, 5, 7, 8, 10, 11. NVDIMM-N memory module installation guidelines The following are the recommended guidelines for installing NVDIMM-N memory modules: ● Each system supports memory configurations with 1, 2, 4, 6, or 12 NVDIMM-Ns. ● Supported configurations have dual processors and a minimum of 12x RDIMMs.
Table 6. Supported NVDIMM-N for dual processor configurations Configuration Description Memory population rules RDIMMs NVDIMM-N Processor2 {B1, 2, 3, 4, 5, 6, 7, 8, 9, 10} Configuration 10 Configuration 11 Configuration 12 Configuration 13 Configuration 14 12x 16 GB RDIMMs, 6x NVDIMM-Ns Same for all 12x RDIMM configurations. See Configuration 1. Processor1 {A7, 8, 9} 12x 32 GB RDIMMs, 6x NVDIMM-Ns Same for all 12x RDIMM configurations. See Configuration 1.
Table 7.
Table 7.
Table 8. 2 socket DCPMM configurations No. of CPUs in the Serve r DCPM DRAM DRAM DCPM Operating M Popul Capac M system Popul ation ity Capac Memory in ation (GB) ity Memory (GB) Mode (GB) Total Memo ry (GB) Total Memo ry per CPU (GB) Ratio DRAM to Optane Memory Requires an M or L CPU Supported Supported in App in Memory Direct Mode Mode 2 128 GB 16 GB x 12 x 12 192 1,536 1,536 1,728 864 1:8 No Yes Yes 2 128 GB 32 GB x1 x 12 384 128 N/A 512 256 1 : 0.
Table 8. 2 socket DCPMM configurations No. of CPUs in the Serve r DCPM DRAM DRAM DCPM Operating M Popul Capac M system Popul ation ity Capac Memory in ation (GB) ity Memory (GB) Mode (GB) Total Memo ry (GB) Total Memo ry per CPU (GB) Ratio DRAM to Optane Memory Requires an M or L CPU Supported Supported in App in Memory Direct Mode Mode 2 256 GB x 12 4,608 2,304 1:2 L SKU Yes 128 GB 1,536 x 12 3,072 N/A No Table 9. 4 socket DCPMM configurations DCPMM N DRAM Population o Population .
Table 10. Memory operating modes (continued) Memory Operating Mode Description NOTE: DCPMM supports only Optimizer mode. Mirror Mode The Mirror Mode if enabled, the system maintains two identical copies of data in memory, and the total available system memory is one half of the total installed physical memory. Half of the installed memory is used to mirror the active memory modules.
Table 11. Memory population rules (continued) Processor Configuration population should match) Memory population Memory population information in turn will result in performance loss. It is recommended to populate all memory channels identically with identical DIMMs for best performance. A{5}, B{5}, A{6}, B{6} NOTE: For best performance, 6 DIMMs or 12 DIMMs per processor is recommended. Optimizer population order is not traditional for 8 and 16 DIMMs installations for dual processor.
Table 11.
CAUTION: Handle each memory module only by the card edges, ensuring not to touch the middle of the memory module or metallic contacts. 2. Push the ejectors outward on both ends of the memory module socket to release the memory module from the socket. 3. Lift and remove the memory module from the sled or PEM. Figure 53. Removing a memory module from the system board or PEM Next steps 1. Install a memory module. 2. If you are removing the memory module permanently, install a memory module blank.
4. Press the memory module with your thumbs until the socket levers firmly click into place. Figure 54. Installing a memory module on the system board or PEM Next steps 1. After installing the memory module on the system board, a. Install the air shroud into the system board. b. Install the PEM. 2. After installing the memory module on the PEM, install the air shroud on the PEM. 3. Follow the procedure listed in the After working inside your sled section. 4.
Removing the processor and heat sink module Prerequisites WARNING: The heat sink may be hot to touch for some time after the sled has been powered down. Allow the heat sink to cool before removing it. 1. 2. 3. 4. Follow the safety guidelines listed in the Safety instructions section. Follow the procedure listed in the Before working inside your sled section. For removing the processor and heat sink module from the PEM, remove the air shroud from the PEM.
Removing the processor from the processor and heat sink module Prerequisites NOTE: Only remove the processor from the processor and heat sink module (PHM) if you are replacing the processor or heat sink. This procedure is not required when replacing a system board. 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. 3. Remove the processor and heat sink module. Steps 1.
Figure 57. Removing the processor bracket Next steps 1. Install the processor into the processor and heat sink module. Installing the processor into a processor and heat sink module Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. Steps 1. Place the processor in the processor tray.
Figure 58. Installing the processor bracket 3. If you are using an existing heat sink, remove the thermal grease from the heat sink by using a clean lint-free cloth. 4. Use the thermal grease syringe included with your processor kit to apply the grease in a quadrilateral design on the top of the processor. CAUTION: Applying too much thermal grease can result in excess grease coming in contact with and contaminating the processor socket. NOTE: The thermal grease syringe is intended for single use only.
● Do not press on the heat sink fins. ● Ensure that the pin 1 indicator on the heat sink is aligned with the pin 1 indicator on the bracket before placing the heat sink onto the processor and bracket. Figure 60. Installing the heat sink onto the processor Next steps 1. Install the processor and heat sink module. 2. Follow the procedure listed in the After working inside your sled section.
a. Partially tighten the first screw (approximately 3 turns). b. Tighten the second screw completely. c. Return to the first screw and tighten it completely. If the PHM slips off the blue retention clips when the screws are partially tightened, follow these steps to secure the PHM: a. Loosen both the heat sink screws completely. b. Lower the PHM on to the blue retention clips, following the procedure described in step 2. c.
4. Remove the air shroud from the system board. CAUTION: If either the system board or iDRAC card fails, it is required to replace the system board and iDRAC card simultaneously. Steps Hold the blue pull tag, and lift the iDRAC card away from the sled. Figure 62. Removing the iDRAC card NOTE: The iDRAC card is not swappable with other MX series sleds in the MX7000 enclosure. NOTE: The procedure to remove vFlash card is similar to removing a MicroSD card. Figure 63. Removing a vFlash card Next steps 1.
Installing the iDRAC card Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. CAUTION: If either the system board or iDRAC card fails, it is required to replace the system board and iDRAC card simultaneously. Steps 1. Align the iDRAC card with the connector and guide pin on the system board. 2.
Next steps 1. Install the air shroud on the system board. 2. Install the PEM. 3. Follow the procedure listed in the After working inside your sled section. PERC cards The PowerEdge MX840c sled includes dedicated slots on the system board and PEM board for PERC cards. Removing the PERC card Prerequisites 1. 2. 3. 4. Follow the safety guidelines listed in the Safety instructions section. Follow the procedure listed in the Before working inside your sled section. Remove the PEM.
Steps 1. Lift the blue pull tag to raise the lever up on the PERC card. 2. Align the connector and guide slots on the PERC card with the connector and guides on the sled. 3. Lower and press the PERC card to firmly seat on the system board connector and close the lever on the PERC card. Figure 67. Installing the PERC card Next steps 1. Connect the cable to the PERC card. 2. Install the PEM. 3. Follow the procedure listed in the After working inside your sled section.
Figure 68. Removing the Jumbo PERC card Next steps 1. Install the Jumbo PERC card. Installing the Jumbo PERC card Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. 3. Remove the iDRAC card before installing the Jumbo PERC card. Steps 1. Remove the connector cap on the I/O connector from the Jumbo PERC card. 2. Lift the blue pull tags to raise the lever up on the Jumbo PERC card. 3.
Figure 69. Installing the Jumbo PERC card Next steps 1. 2. 3. 4. Connect the cable to the Jumbo PERC card. Install the air shroud on the system board. Install the PEM. Follow the procedure listed in the After working inside the sled section. Optional Internal dual SD module The optional internal dual SD module (IDSDM) has two MicroSD card sockets. The IDSDM is available with a single MicroSD card in slot 1 or in redundant mode with two MicroSD cards installed.
Figure 70. Removing the IDSDM module Next steps 1. Install the optional IDSDM module. Installing the optional IDSDM module Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. Steps 1. Locate the IDSDM module connector on the system board. NOTE: To locate IDSDM connector, see the System board jumpers and connectors section. 2. Align the IDSDM module with the connector on the system board. 3.
Figure 71. Installing the IDSDM module Next steps 1. Install the MicroSD cards. NOTE: Reinstall the MicroSD cards into the same slots based on the labels you had marked on the cards during removal. 2. Install the air shroud on the system board. 3. Install the PEM. 4. Follow the procedure listed in the After working inside your sled section. Removing a MicroSD card Prerequisites 1. 2. 3. 4. Follow the safety guidelines listed in the Safety instructions section.
Figure 72. Removing a MicroSD card Next steps 1. Install a MicroSD card. Installing a MicroSD card Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. NOTE: To use an MicroSD card with your system, ensure that the Internal SD Card Port is enabled in System Setup.
Figure 73. Installing a MicroSD card Next steps 1. Install the IDSDM module. 2. Install the PEM. 3. Follow the procedure listed in the After working inside your sled section. M.2 BOSS module The M.2 BOSS module is a simple RAID solution designed specifically for booting a server's operating system. The module supports up to two 6 Gbps M.2 SATA cards. The M.2 BOSS module has a x8 connector using PCIe gen 3.0 x2 lanes. Removing the M.2 BOSS module Prerequisites 1. 2. 3. 4.
Figure 74. Removing the M.2 BOSS module Next steps 1. Install the M.2 BOSS module. Installing the M.2 BOSS module Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled. Steps 1. Align the M.2 BOSS module connector with the connector and guide on the system board. 2. Press on the M.2 BOSS module until it is firmly seated on the system board.
Figure 75. Installing the M.2 BOSS module Next steps 1. Install the air shroud on the system board. 2. Install the PEM. 3. Follow the procedure listed in the After working inside your sled. Removing the M.2 SATA card Prerequisites 1. 2. 3. 4. Follow the safety guidelines listed in the Safety instructions section. Follow the procedure listed in the Before working inside your sled. Remove the PEM. Remove the M.2 BOSS module. Steps 1. Using the Phillips #1 screwdriver, remove the screw on the M.
Figure 76. Removing the M.2 SATA card Next steps 1. Install the M.2 SATA card. Installing the M.2 SATA card Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled. Steps 1. Align the M.2 SATA card at angle of 45 degrees with the SATA connector on the M.2 BOSS module. 2. Press the M.2 SATA card into the SATA connector until firmly seated in place. 3. Push down the M.
Figure 77. Installing the M.2 SATA card Next steps 1. Install the M.2 BOSS module. 2. Install the PEM. 3. Follow the procedure listed in the After working inside your sled. Mezzanine card Mezzanine card installation guidelines The PowerEdge MX840c sled supports four Mezzanine cards: ● PCIe Mezzanine card slot C supports Fabric C - This card must match the fabric type of I/O modules that are installed in I/O module bays C1 and C2.
Figure 78. Removing the mini Mezzanine card blank Next steps 1. Install the mini Mezzanine card blank. Installing the mini Mezzanine card blank Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. Steps 1. Align the slot on the Mezzanine card blank with the guide on the sled or PEM. 2. Place the mini Mezzanine card blank on the mini Mezzanine card slot on the sled or PEM. Figure 79.
2. Follow the procedure listed in the After working inside the sled section. Removing a mini Mezzanine card Prerequisites 1. 2. 3. 4. Follow the safety guidelines listed in the Safety instructions section. Follow the procedure listed in the Before working inside a sled section. To remove the mini Mezzanine card from the system board, remove the PEM. Remove the air shroud from the system board. Steps 1. Lift the blue pull tag to raise the lever up on the mini Mezzanine card. 2.
Figure 81. Installing the mini Mezzanine card NOTE: The PowerEdge MX840c sled supports HBA330 MMZ and Fiber channel MMZ which are installed in the mini Mezzanine card slot. Next steps 1. Install the air shroud on the system board. 2. Install the PEM. 3. Follow the procedure listed in the After working inside your sled section. Removing the Mezzanine card Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2.
Figure 82. Removing the Mezzanine card from the system board Figure 83. Removing the Mezzanine card from the PEM Next steps 1. Install the Mezzanine card.
Installing the Mezzanine card Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. Steps 1. Align the connector on the Mezzanine card with the connector on the system board. 2. Place the Mezzanine card on the connector, and press the blue push point until firmly seated. 3. Using the Phillips #2 screwdriver, tighten the captive screw on the Mezzanine card. Figure 84.
Figure 85. Installing the Mezzanine card on the PEM Next steps 1. After installing the Mezzanine card on the system board, install the PEM. 2. Follow the procedure listed in the After working inside your sled section. Optional internal USB memory key An optional USB memory key installed inside your sled can be used as a boot device, security key, or mass storage device.
Steps 1. Locate the USB port or USB memory key on the system board. To locate the USB port, see the System board jumpers and connectors section. 2. If installed, remove the USB memory key from the USB port. 3. Place the replacement USB memory key into the USB port. Next steps 1. Install the PEM. 2. While booting, press F2 to enter System Setup and verify that the system detects the USB memory key. 3. Follow the procedure listed in the After working inside your sled section.
Figure 87. Installing the system battery Next steps 1. 2. 3. 4. 5. Install the PEM. Follow the procedure listed in the After working inside your sled section. While booting, press F2 to enter the System Setup and ensure that the battery is operating properly. Enter the correct time and date in the System Setup Time and Date fields. Exit the System Setup.
g. h. i. j. k. l. m. n. o. p. q. Internal USB memory key (if applicable) iDRAC card PERC cards Jumbo PERC card Mezzanine card NOTE: It is required to remove the mezzanine card support brackets for removing the system board from the system. Mini Mezzanine cards Memory modules and memory module blanks Drives Backplane Control panel Drive cage Steps 1. Disconnect all cables from the system board. CAUTION: Do not lift the system board by holding a memory module, processor, or other components. 2.
Installing the system board Prerequisites 1. Follow the safety guidelines listed in the Safety instructions section. 2. Follow the procedure listed in the Before working inside your sled section. CAUTION: If either the system board or iDRAC card fails, it is required to replace the system board and iDRAC card simultaneously. NOTE: It is required to reactivate the licenses after the system board replacement. Steps 1. Unpack the replacement system board assembly.
g. Mezzanine cards NOTE: Install the mezzanine card support brackets before installing the mezzanine cards. 2. 3. 4. 5. h. Mini Mezzanine card i. Processors j. Heat sink and processor modules k. Memory modules and memory module blanks l. Control panel m. Drive cage n. Backplane o. Drives p. Air shroud into the system board q. PEM Reconnect all cables to the system board. NOTE: Ensure that the cables inside the sled are routed along the chassis wall and secured using the cable securing bracket.
● Press Y to restore the Service Tag, license, and diagnostics information. ● Press N to navigate to the Dell Lifecycle Controller based restore options. ● Press F10 to restore data from a previously created Hardware Server Profile. After the restore process is complete, BIOS prompts to restore the system configuration data. 3. Perform one of the following steps: ● Press Y to restore the system configuration data. ● Press N to use the default configuration settings.
Installing the TPM Steps 1. To install the TPM, align the edge connectors on the TPM with the slot on the TPM connector. 2. Insert the TPM into the TPM connector such that the plastic rivet aligns with the slot on the system board. 3. Press the plastic rivet until the rivet snaps into place. Figure 90. Installing the TPM Next steps 1. Install the PEM. 2. Follow the procedure listed in the After working inside your sled section. Initializing TPM for BitLocker users Steps Initialize the TPM.
2. On the System Setup Main Menu screen, click System BIOS > System Security Settings. 3. From the TPM Security option, select On. 4. Save the settings. 5. Restart your system. 6. Enter System Setup again. 7. On the System Setup Main Menu screen, click System BIOS > System Security Settings. 8. Select the TPM Advanced Settings option. 9. From the TPM2 Algorithm Selection option, select SHA256, then go back to System Security Settings screen. 10.
5 Jumpers and connectors This topic provides specific information about the jumpers. It also provides some basic information about jumpers and switches and describes the connectors on the various boards in the system. Jumpers on the system board help to disable the system and setup passwords. You must know the connectors on the system board to install components and cables correctly.
Table 13. System board jumpers and connectors Item Connector Description 9. BBU_SIGNAL Battery Backup Unit (BBU) signal connector 10. CPU1 Processor 1 11. A6, A12, A5, A11, A4, A10 Memory module sockets 12. B3, B9, B2, B8, B1, B7 Memory module sockets 13. J_MEZZ_A1 (CPU1) Mezzanine card (Fabric A1 card) connector 14. CPU2 Processor 2 15. UPI UPI connector 16. INTERNAL USB Internal USB 3.0 17. J_MEZZ_B1 (CPU2) Mezzanine card (Fabric B1 card) connector 18.
Table 14. PEM board jumpers and connectors Item Connector Description 1. C7, C1, C8, C2, C9, C3 Memory module sockets 2. CPU3 Processor 3 3. C6, C12, C5, C11, C4, C10 Memory module sockets 4. J_MEZZ_A2 (CPU3) Mezzanine card (Fabric A2 card) connector 5. D3, D9, D2, D8, D1, D7 Memory module sockets 6. CPU4 Processor 4 7. J_MEZZ_B2 (CPU4) Mezzanine card (Fabric B2 card) connector 8. D10, D4, D11, D5, D12, D6 Memory module sockets 9. SYS_PWR_CONN System power connector 10.
Steps 1. Remove the sled from the enclosure. 2. Remove the sled cover. 3. Remove the PEM. 4. Remove the drive cage. 5. Move the jumper on the system board jumper from pins 2 and 4 to pins 4 and 6. 6. Install the drive cage. 7. Install the PEM. 8. Install the sled cover. The existing passwords are not disabled (erased) until the system boots with the jumper on pins 4 and 6. However, before you assign a new system and/or setup password, you must move the jumper back to pins 2 and 4.
6 System diagnostics and indicator codes The diagnostic indicators on the system front panel display system status during system startup. Topics: • • • • System ID and status LED indicator codes Power button LED Drive indicator codes System diagnostics System ID and status LED indicator codes The system ID indicator is located on the control panel of your sled. Figure 93. System ID and status LED indicators Table 16.
Table 17. Power button LED Power button LED indicator code Condition Off Sled is not operating, regardless of power supply available. On Sled is operating, one or more of the non-standby power supplies are active. Slowly blinking Sled is performing powering on sequence and iDRAC is still booting. Drive indicator codes Each drive carrier has an activity LED indicator and a status LED indicator. The indicators provide information about the current status of the drive.
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 using 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.
7 Getting help Topics: • • • • • • Contacting Dell Documentation feedback Receiving automated support with SupportAssist Accessing system information by using QRL Quick Resource Locator for the PowerEdge MX840c sled Recycling or End-of-Life service information Contacting Dell Dell provides several online and telephone based support and service options.
● Automated case creation — When an issue is detected, SupportAssist automatically opens a support case with Dell EMC Technical Support. ● Automated diagnostic collection — SupportAssist automatically collects system state information from your devices and uploads it securely to Dell EMC. This information is used by Dell EMC Technical Support to troubleshoot the issue. ● Proactive contact — A Dell EMC Technical Support agent contacts you about the support case and helps you resolve the issue.
8 Documentation resources This section provides information about the documentation resources for your PowerEdgeMX840csystem. To view the document that is listed in the documentation resources table: ● From the Dell EMC support site: 1. Click the documentation link that is provided in the Location column in the table. 2. Click the required product or product version. NOTE: To locate the product name and model, see the front of your system. 3. On the Product Support page, click Manuals & documents.
Table 19. Documentation resources Task Document Location For information about installing the operating https://www.dell.com/operatingsystemmanuals system, see the operating system documentation. For information about updating drivers and www.dell.com/support/drivers firmware, see the Methods to download firmware and drivers section in this document. Managing your system For information about systems management software offered by Dell, see the Dell OpenManage Systems Management Overview Guide.
