Dell™ PowerVault™ 770N Systems Service Manual System Overview Basic Troubleshooting Indicators, Codes, and Messages Removing and Replacing Parts Jumpers and Connectors Using the System Setup Program Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
Back to Contents Page System Overview Dell™ PowerVault™ 770N Systems Service Manual System Features Supported Operating Systems Service Features Power Protection Devices Other Documents You May Need Technical Specifications Your Dell™ PowerVault™ 770N NAS system provides optimized file-serving capabilities on a robust rackmount or tower platform. The base configuration features one Intel® Xeon™ microprocessor with 512 MB of memory.
Six 64-bit PCI/PCI-X slots and one 32-bit PCI slot. Slots accept full-length cards designed for 133 MHz, 100 MHz, 66 MHz, or 33 MHz. An integrated VGA-compatible video subsystem with an ATI RAGE XL video controller. This video subsystem contains 8 MB of SDRAM video memory (nonupgradable). Maximum resolution is 1600 x 1200 x 16.7 million colors (noninterlaced). An integrated, dual-channel Ultra320 SCSI host adapter.
allows you to shutdown the system. Use surge protectors and PDUs with all universal power supplies, and ensure that the UPS is UL-safety approved. Other Documents You May Need The System Information Guide provides important safety and regulatory information. Warranty information might be included within this document or as a separate document. The Rack Installation Guide describes how to unpack, set up, and install your system in a rack.
Architecture 72-bit ECC PC-2100 DDR SDRAM DIMMs, with 2-way interleaving Memory module sockets six 72-bit wide 168-pin DIMM sockets Memory module capacities 256 and 512 MB registered DDR SDRAM DIMMs Minimum RAM 512 MB Drives Diskette drive 3.5-inch, 1.
Physical Rack Height 21.7 cm (8.56 inches [5U]) Width 48.0 cm (18.9 inches) Depth 62.9 cm (24.75 inches) Weight 40.8 kg (90 lbs) maximum configuration Height 44.5 cm (17.5 inches) Width 23.0 cm (9.125 inches) Depth 62.9 cm (24.75 inches) Weight 40.
Back to Contents Page Basic Troubleshooting Dell™ PowerVault™ 770N Systems Service Manual Initial User Contact External Visual Inspection Observing the Boot Routine Internal Visual Inspection Running the System Diagnostics System Diagnostics Testing Options Using the Advanced Testing Options Performing basic troubleshooting procedures can often reveal the source of a system problem or indicate the correct starting point for servicing the system.
4. Ensure that cables are properly attached to all attached devices. 5. If a monitor is used, inspect the video monitor controls for obvious damage or improper settings. For proper settings of the monitor controls, see the monitor documentation. 6. If a keyboard is used, inspect the keyboard to ensure that keys are not sticking. If keys are sticking, replace the keyboard. 7. Inspect the system and peripherals for signs of physical damage. If a peripheral is damaged, see the peripheral documentation.
the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 3. Remove the system cover (see "Removing the Cover"). CAUTION: The microprocessor and heat-sink assembly can get extremely hot during system operations. Ensure that both components have had sufficient time to cool before touching them.
Table 2-1. System Diagnostics Testing Options Testing Option Function Quick Tests Performs a quick check of the system. Select Test All Devices and then select Quick Tests. This option runs device tests that do not require user interaction. Use this option to quickly identify the source of your problem. Test One Device Tests a particular device. Extended Tests Performs a more thorough check of the system. Select Test All Devices and then select Extended Tests.
Back to Contents Page Indicators, Codes, and Messages Dell™ PowerVault™ 770N Systems Service Manual System-Status Indicators Cooling Fan Indicator Codes Front-Panel Indicators and Features System Beep Codes Back-Panel Indicators and Features System Board LED Codes Power Indicator Codes System Messages Hard-Drive Indicator Codes Warning Messages NIC Indicator Codes Diagnostics Messages ERA/O Ethernet Connector Indicator Codes (Optional) Alert Messages Applications, operating syst
Table 3-1 lists the system's status indicator codes. Figure 3-1. System-Status Indicators Table 3-1. System-Status Indicator Codes Bezel Indicators Indicator Code Status Caution Off Off No power is available to the system, or the system is not powered on. On Off The system is operating normally. Off Blinking The system has detected an error and requires attention. Blinking Off The system is identifying itself (see "Front-Panel Indicators and Features").
Table 3-2. Front-Panel Features Component Description Power button Turns system power off and on. If you turn off the system using the power button and the system is running an ACPI-compliant operating system, the system can perform an orderly shutdown before power is turned off. If the system is not running an ACPI-compliant operating system, power is turned off immediately after the power button is pressed. The button is enabled in the System Setup program.
Table 3-3. Back-Panel Indicators Component Description NIC indicators Provides information on NIC status (see "NIC Indicator Codes"). ERA/O Ethernet connector indicators Provides information about the ERA/O Ethernet connector status (see "ERA/O Ethernet Connector Indicator Codes (Optional)"). Power Indicator Codes The system has indicators on the power button and on the power supplies that signify system power status.
Table 3-5. Power-Supply Indicator Codes Indicator Indicator Code Power-on Green indicates that the power supply is operational. Fault Red indicates a problem with the power supply (fan failure, voltage error, etc.). Power present Green indicates that power is present at the power supply and that the system is connected to a power source. Hard-Drive Indicator Codes Each hard-drive carrier has two indicators: a busy indicator and a status indicator (see Figure 3-5).
Table 3-6 lists the drive indicator codes. Different codes display as drive events occur in the system. For example, in the event of a hard-drive failure, the "drive fail" code appears. After the drive is selected for removal, the "preparing for removal" code appears. After the replacement drive is installed, the "preparing for operation, drive online" code appears. Table 3-6.
Table 3-7. NIC Indicator Codes Indicator Indicator Code Link and activity indicators are off The NIC is not connected to the network. Link indicator is green The NIC is connected to a valid link partner on the network. Activity indicator is amber blinking Network data is being sent or received.
Table 3-9. Cooling Fan Indicator Codes Indicator Indicator Code Off The fan is not installed. Green The fan is operating normally. Amber blinking The fan is malfunctioning. System Beep Codes When an error that cannot be reported on the monitor occurs during a boot routine, the system may emit a series of beeps that identifies the problem. When a beep code is emitted, make a note of it and then look it up in Table 3-10.
1-2-2 DMA initialization failure. 1-2-3 DMA page register write/read failure. 1-3-1 Main-memory refresh verification failure. 1-3-2 No memory installed. 1-3-3 Chip or data line failure in the first 64 KB of main memory. 1-3-4 Odd/even logic failure in the first 64 KB of main memory. 1-4-1 Address line failure in the first 64 KB of main memory. 1-4-2 Parity failure in the first 64 KB of main memory. 1-4-3 Fail-safe timer test failure. 1-4-4 Software NMI port test failure.
4-2-2 Shutdown test failure. 4-2-3 Gate A20 failure. 4-2-4 Unexpected interrupt in protected mode. Ensure that the expansion cards are properly installed. If the problem persists, replace the faulty expansion card(s) (see "Expansion Cards"). 4-3-1 Improperly installed or faulty memory modules. Ensure that the memory modules are properly installed. If the problem persists, replace the faulty memory module(s) (see "Memory Modules"). 4-3-2 No memory modules installed in bank 1.
Table 3-11. System Board LED Codes Group, Meaning LED 1 LED 2 LED 3 LED 4 LED 5 System is healthy, AC power not present, bad 3.3 V AUX, or PDM not connected.
6 +2.5V is not good. OFF BLINK ON ON OFF 7 +3.3V is not good. OFF BLINK ON ON ON 8 +3.3V_PCI is not good. ON BLINK OFF OFF OFF 9 +5V is not good. ON BLINK OFF OFF ON 10 System POWERGOOD missing. Bad U6009. ON BLINK OFF ON OFF 11 Standby POWERGOOD missing. Bad +5V_AUX or +1.8V_AUX. ON BLINK OFF ON ON 12 VRM_P1 is not good. ON BLINK ON OFF OFF 13 VRM_P2 is not good. ON BLINK ON OFF ON 3 - NOPOST NO VIDEO (chipset) 1 CPU POR is not high.
BIOS Update Attempt Failed! Remote BIOS update attempt failed. Retry the BIOS update. Download the latest firmware from the Dell Support website at support.dell.com. CD-ROM drive not found Improperly connected or missing CD drive. Ensure that the CD/diskette drive is properly installed. If the problem persists, replace the CD/diskette drive (see "CD/Diskette Drive"). CPUs with different cache sizes detected Microprocessors with different cache sizes are installed.
detected; potential for data corruption exists Faulty or improperly installed memory modules. Memory modules must be populated in the following order: DIMM_1A and DIMM_1B must be in the first slots populated; DIMM_2A and DIMM_2B must be in the second slots populated, and so on. Remove and reseat the DIMMs in their sockets. If the problem persists, replace the memory module ("Memory Modules"). Invalid NVRAM configuration, resource re-allocated System configuration data has been ignored.
No PXE-capable device available pressed during POST and no PXE devices are detected. Check the configuration settings in the System Setup program for the NICs (see "Using the System Setup Program"). No timer tick interrupt Faulty system board. Replace the system board (see "System Board"). Not a boot diskette No operating system on diskette. Use a bootable diskette. PCI BIOS failed to install Loose cables to expansion card(s); faulty or improperly installed expansion card.
Unsupported RAID key detected! RAID hardware key is Install the RAID hardware key for your specific system (see not supported by the "Integrated RAID Controller"). system. The VRM for the processor in socket n is not installed. Specified microprocessor VRM is faulty, unsupported, improperly installed, or missing. A VRM must be installed for each installed microprocessor.
Back to Contents Page Removing and Replacing Parts Dell™ PowerVault™ 770N Systems Service Manual Recommended Tools Installing an External SCSI Tape Drive System Orientation Hard Drives Bezel Removing a Hard Drive System Cover Installing a Hard Drive Inside the System Upgrading to Eight Hard Drives Peripheral Bay Integrated RAID Controller Control Panel Integrated RAID Controller Memory Module Cooling Shroud RAID Controller Card System Fans SCSI Backplane
Figure 4-1 shows the rack and tower versions of the system. The illustrations in this document depict the tower version of the system lying on its side. Figure 4-1. System Orientation Bezel The bezel has a system status indicator. A lock on the bezel restricts access to the power button, CD/diskette drive, hard drive(s), power supplies, and the interior of the system. You must open or remove the bezel and remove the system cover to gain access to internal components. Removing the Bezel 1.
Replacing the Bezel 1. Align the two thumbscrews with the mounting holes on the front of the system. 2. Tighten the thumbscrews to secure the bezel (see Figure 4-2). 3. Swing the bezel closed until it snaps into place. 4. Using the system key, lock the bezel. System Cover To upgrade or troubleshoot the system, remove the system cover to gain access to internal components. Removing the Cover CAUTION: Before you perform this procedure, you must turn off the system and disconnect it from its power source.
Replacing the Cover 1. Ensure that no tools or parts are left inside the system and that any cables are routed so that they will not be damaged by the cover. 2. Align the cover with the cover alignment hooks on the sides of the chassis, and slide the cover forward (see Figure 43). 3. Tighten the three thumbscrews that secure the cover to the chassis. 4. Replace the bezel (see "Replacing the Bezel"). Inside the System In Figure 4-4, the covers and bezel are removed to provide an interior view of the system.
The system board holds the system's control circuitry and other electronic components. Several hardware options, such as the microprocessors and memory, are installed directly on the system board. The system board can accommodate up to seven PCI expansion cards (two PCI or PCI-X cards at 64-bit/33-133 MHz, four PCI or PCI-X cards at 64-bit/33-100 MHz, and one PCI card at 32-bit/33 MHz). The peripheral bay provides space for a 3.5-inch diskette drive, a CD drive, and two hard drives.
The other end of this cable connects to the system board. 4. Disconnect any cables from any devices already installed in the peripheral bay. 5. Loosen the thumbscrew securing the back of the peripheral bay to the chassis. 6. Grasping the peripheral bay by its top handle with one hand and pressing the front of the peripheral bay, slide the peripheral bay backward approximately 0.5-inch and lift up to remove the peripheral bay from the chassis. Figure 4-5.
Removing the Control Panel CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 1. Remove the bezel (see "Removing the Bezel"). 2. Remove the system cover (see "Removing the Cover"). 3. Disconnect the control panel cable from the system board. 4.
1. Lower the control-panel and its cable into the system. 2. Connect the control-panel cable to the system board (see Figure 4-6). 3. Slide the assembly towards the front panel (see Figure 4-6). 4. Replace the retaining screw that secures the control-panel assembly to the front panel (see Figure 4-6). Cooling Shroud The cooling shroud is attached to the back fan assembly and secured to the system board with two thumbscrews.
6. Rotate the cooling shroud up and lift to clear the back fan assembly and chassis (see Figure 4-8). Figure 4-8.
Replacing the Cooling Shroud 1. Lower the cooling shroud into the chassis ensuring that the cooling shroud is aligned with the rear cooling fan assembly guides. 2. Rotate the cooling shroud down ensuring the thumbscrews are aligned with the connecting posts on the system board (see Figure 4-7). 3. Tighten the two thumbscrews securing the cooling shroud to the system board. 4. Reconnect the cooling shroud fan cable to the system board. 5. Replace the cover (see "Replacing the Cover").
1. Open the bezel (see "Removing the Bezel"). 2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. 3. Remove the cover (see "Removing the Cover"). 4. Disconnect the front fan assembly power cable from the front fan connector on the SCSI backplane board (see Figure 5-4). 5. Release the fan assembly by pressing the release lever (see Figure 4-9). 6. Swing the fan assembly up and out of the way. Figure 4-9.
1. Open the bezel (see "Removing the Bezel"). 2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. 3. Remove the cover (see "Removing the Cover"). 4. Remove the cooling shroud (see "Removing the Cooling Shroud"). 5. Disconnect the fan assembly power cable from the back fan connector on the system board (see Figure 5-3). 6. Pull on the release latch and lift the fan assembly straight up to clear the chassis (see Figure 4-10). Figure 4-10.
NOTICE: The cooling fans are hot-pluggable. To maintain proper cooling while the system is on, only replace one fan at a time. 2. Locate the faulty fan and while pressing the fan release lever, lift the fan straight up to clear the fan assembly (see Figure 4-11). Figure 4-11. Removing and Replacing Individual Fans Replacing a Fan 1. Lower the fan into the fan assembly until the fan snaps into position. 2. Replace the cover (see "Replacing the Cover").
Replacing the Cooling Shroud Fan 1. Slide the fan into the bracket on the cooling shroud until the fan snaps into position (see Figure 4-12). 2. Replace the system cover. Power Supplies The system includes one or two hot-pluggable power supplies. Removing a Power Supply NOTICE: The power supplies are hot-pluggable. The system requires one power supply to be installed for the system to operate normally. The system is in the redundant mode when two power supplies are installed.
Replacing a Power Supply 1. Slide the power supply into the chassis until it snaps into place (see Figure 4-13). 2. If the system has one power supply, reconnect the system and peripherals to their electrical outlets, and turn them on. NOTE: After installing a power supply, allow several seconds for the system to recognize the power supply and determine whether it is working properly. The power-on indicator will turn green to signify that the power supply is functioning properly (see Figure 3-4). 3.
Table 4-1. Expansion Slot Speeds Slot Bus Operating Speed Signalling Level 1 0 33 MHz 5V 2 5 33, 66, or 100 MHz 3.3 V 3 5 33, 66, or 100 MHz 3.3 V 4 4 33, 66, or 100 MHz 3.3 V 5 4 33, 66, or 100 MHz 3.3 V 6 3 33, 66, 100, or 133 MHz 3.3 V 7 2 33, 66, 100, or 133 MHz 3.3 V NOTE: If you are using expansion cards of different operating speeds, you should install the fastest card in slot 7 and the slowest card in slot 1.
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 1. Unpack the expansion card, and prepare it for installation. For instructions, see the documentation accompanying the card. 2. Open the bezel (see "Removing the Bezel"). 3.
See the documentation that came with the card for information about its cable connections. NOTE: If the expansion card you are installing is of a different operating speed as the card already installed on the same PCI bus, all expansion cards on that bus will operate at the slower speed. 10. Replace the front fan assembly (see "Removing the Front Fan Assembly"). 11. Replace the cover (see "Replacing the Cover").
1. Open the bezel (see "Removing the Bezel"). 2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. 3. Remove the cover (see "Removing the Cover"). 4. Remove any full-length expansion-cards that are installed (see "Expansion Cards"). 5. Remove the front fan assembly (see "Removing the Front Fan Assembly"). 6. You must remove the expansion card guide from the system before you remove the ERA/O card.
Installing a Replacement ERA/O Card 1. To install the replacement ERA/O card in the system, perform the following steps: a. Position the ERA/O card so that the card connector is directly over the connector on the system board and the mounting holes on the card line up with the support posts on the system board (see Figure 4-17). b. Press down until the ERA/O card connector is fully seated in the connector on the system board and the support posts are secured in the mounting holes on the card. Figure 4-17.
3. Reinstall any expansion cards that you removed (see "Installing an Expansion Card"). NOTE: SCSI cables connected from an expansion card to the SCSI backplane board should be routed under the front fan assembly. 4. Reinstall the front fan assembly (see "Replacing the Front Fan Assembly"). 5. Replace the cover (see "Replacing the Cover"). 6. Replace the bezel (see Replacing the Bezel"). 7. Connect a network cable to the 10-Mbps server management Ethernet connector on the system back panel. 8.
Replacing the CD/Diskette Drive CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 1. Align the CD/diskette drive with the opening in the side of the peripheral bay. 2.
Installing an External SCSI Tape Drive This section describes hot to configure and install an external SCSI tape drive. Interface Cables You must connect external SCSI devices to a SCSI host adapter expansion card. See "Expansion Cards" for information on installing expansion cards. SCSI interface connectors are keyed for correct insertion. Keying ensures that the pin-1 conductor in the cable connects to pin-1in the connectors at both ends.
Device Termination SCSI logic requires that termination be enabled for the two devices at opposite ends of the SCSI chain and disabled for all devices in between. For internal SCSI devices, termination is configured automatically. For external SCSI devices, you should disable termination on all devices and use terminated cables. See the documentation provided with any optional SCSI device you purchase for information on disabling termination.
When you format a high-capacity hard drive, allow enough time for the formatting to be completed. Long format times for these drives are normal. For example, an exceptionally large drive can take over an hour to format. SCSI Backplane Board Configuration The hard-drive bays provide space for up to six 1-inch hard drives, and the peripheral bay provides space for two more drives. The hard drives connect to a controller on the system board or a RAID controller card through the SCSI backplane board.
Installing a Hard Drive NOTICE: When installing a hard drive, ensure that the adjacent drives are fully installed. Inserting a hard-drive carrier and attempting to lock its handle next to a partially installed carrier can damage the partially installed carrier's shield spring and make it unusable. 1. Remove the bezel (see "Removing the Bezel"). 2. Open the hard-drive carrier handle (see Figure 4-20).
Installing a Hard Drive on a Carrier CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 1. Insert the replacement hard drive into the carrier (see Figure 4-21). 2. Install the four screws that secure the drive to the carrier. 3.
the peripheral bay 8. Install six new hard drives into the slots in the drive bay. 9. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals. 10. Reconfigure the two mirrored operating system drives in the peripheral bay as RAID level 1 drives. 11. Reboot the system to verify that the operating system boots from the two mirrored drives in the peripheral bay. 12. Create a RAID level 5 data volume (see your array management software documentation).
Installing the RAID Controller Memory Module CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 1. Push the ejectors on the RAID memory module connector down and outward to allow the memory module to be inserted into the connector (see Figure 4-22).
Installing the RAID Controller Hardware Key CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 1. Push the ejectors on the RAID hardware key connector down and outward to allow the key to be inserted into the connector (see Figure 4-23). 2.
Figure 4-24. Removing and Installing the RAID Battery Installing the Integrated RAID Battery CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. CAUTION: Replace the battery only with the same or equivalent type recommended by the manufacturer.
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. Installing a RAID Controller Card Follow these general guidelines when installing a RAID controller card. For specific instructions, see the documentation supplied with the RAID controller card.
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. Removing the SCSI Backplane Board CAUTION: Read the safety instructions in your System Information Guide. 1.
Replacing the SCSI Backplane Board CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 1. Lower the backplane board into the system board tray. 2. Connect the control-panel cable to the SCSI backplane board (see "Replacing the Control Panel").
12. Reconnect your system and peripherals to their electrical outlets, and turn on the system. Memory Modules The six memory module connectors on the system board can accommodate a minimum of 512 MB of registered memory modules. The memory module connectors are arranged in pairs which consist of three banks (bank 1, bank 2, and bank 3). Memory Upgrade Kits The system is upgradable by installing combinations of 256- and 512-MB registered DDR SDRAM modules. You can purchase memory upgrade kits as needed.
Total Desired Memory Bank 1 A Bank 2 B C Bank 3 D E F 512 MB 256 MB 256 MB None None None None 1 GB 512 MB 512 MB None None None None 2 GB 512 MB 512 MB 512 MB 512 MB None None 3 GB 512 MB 512 MB 512 MB 512 MB 512 MB 512 MB Performing a Memory Upgrade CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system.
1. Open the bezel (see "Removing the Bezel"). 2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. 3. Remove the cover (see "Removing the Cover"). 4. Remove the cooling shroud (see "Removing the Cooling Shroud"). 5. Locate the memory module connectors in which you will install a memory module (see Figure 4-26). 6.
3. Remove the cover (see "Removing the Cover"). 4. Remove the cooling shroud (see "Removing the Cooling Shroud"). 5. Locate the memory module connectors from which you will remove memory modules (see Figure 4-26). 6. Press down and outward on the memory module connector ejectors until the memory module pops out of the connector (see Figure 4-27). 7. Repeat steps 4 through 6 of this procedure to remove any other memory modules. 8. Perform steps 6 through 11 of the procedure in "Performing a Memory Upgrade.
CAUTION: The microprocessor and heat sink can become extremely hot. Be sure the microprocessor has had sufficient time to cool before handling. NOTICE: Never remove the heat sink from a microprocessor unless you intend to remove the microprocessor. The heat sink is required to maintain proper thermal conditions. c. Lift the heat sink out of the chassis and place it on its side. Figure 4-28. Removing and Replacing a Heat Sink 7.
9. Unpack the new microprocessor. If any of the pins on the microprocessor appear bent, contact the source from whom you purchased the microprocessor. 10. Ensure that the release lever on the microprocessor socket is in the upright position. 11. Align pin 1 on the microprocessor (see Figure 4-29) with pin 1 on the microprocessor socket. NOTE: No force is needed to install the microprocessor in the socket. When the microprocessor is aligned correctly, it should drop into the socket. 12.
19. Replace the back fan assembly (see "Replacing the Back Fan Assembly"). 20. Replace the cooling shroud (see "Replacing the Cooling Shroud"). 21. Replace the cover (see "Replacing the Cover"). 22. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals. 23. Enter the System Setup program, and ensure that the microprocessor options match the new system configuration (see "Using the System Setup Program" in your User's Guide).
according to the manufacturer's instructions. See the System Information Guide for additional information. CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 1. Open the bezel (see "Removing the Bezel"). 2.
Removing the System Board CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. 2. Remove the cover (see "Removing the Cover"). 3.
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against electrostatic discharge. 1. Replace the system board (see Figure 4-32): a. Lower the front of the system board into the system board tray, under the tray levers. b.
Back to Contents Page Jumpers and Connectors Dell™ PowerVault™ 770N Systems Service Manual Jumpers—A General Explanation System Board Jumpers System Board Connectors SCSI Backplane Board Connectors Disabling a Forgotten Password This section provides specific information about the system jumpers. It also provides some basic information on jumpers and switches and describes the connectors on the various boards in the system.
Table 5-1. System Board Jumper Settings Jumper Setting PASSWD Description The password feature is enabled. (default) The password feature is disabled. NVRAM_CLR The configuration settings are retained at system boot. (default) The configuration settings are cleared at next system boot. (If the configuration settings become corrupted to the point where the system will not boot, install the jumper and boot the system. Remove the jumper before restoring the configuration information.
Table 5-2.
RAID_BAT Battery cable for optional integrated RAID controller RAID_DIMM Memory module for optional integrated RAID controller RAID_KEY Socket for integrated RAID controller hardware key SCSI_A, SCSI B SCSI host adapter connectors PCI_n Expansion card connectors (PCI 1 – PCI 7) VRM_Pn Microprocessor VRMs (2) SCSI Backplane Board Connectors Figure 5-4 shows the location of the connectors on the SCSI backplane board. Figure 5-4.
3. Remove the jumper plug from the password jumper. See Figure 5-2 to locate of the password jumper (labeled "PASSWD") on the system board. 4. Replace the cover (see "Removing the Cover"). 5. Reconnect your system and peripherals to their electrical outlets, and turn on the system. The existing passwords are not disabled (erased) until the system boots with the password jumper plug removed. However, before you assign a new system and/or setup password, you must install the jumper plug.
Back to Contents Page Using the System Setup Program Dell™ PowerVault™ 770N Systems Service Manual Entering the System Setup Program System Setup Options System and Setup Password Features Disabling a Forgotten Password After you set up your system, run the System Setup program to familiarize yourself with your system configuration and optional settings. Print the System Setup screens by pressing or record the information for future reference.
Up arrow or Moves to the previous field. Down arrow or Moves to the next field. Spacebar, <+>, <–>, left and right arrows Cycles through the settings in a field. In many fields, you can also type the appropriate value. Exits the System Setup program and restarts the system if any changes were made. Displays the System Setup program's help file. NOTE: For most of the options, any changes that you make are recorded but do not take effect until you restart the system.
Time System Date Resets the date on the system's internal calendar. Diskette Drive A: Displays a screen that allows you to select the type of diskette drive for your system. System Memory Displays the amount of system memory. This option has does not have user-selectable settings. Video Memory Displays the amount of video memory. This option does not have user-selectable settings. OS Install Mode (Off default) Determines the maximum amount of memory available to the operating system.
Option Description Embedded RAID Controller Selects between RAID, SCSI, or Off. The configurable options vary, depending on whether the optional ROMB key and memory are installed. With the ROMB key and memory module installed — Select either RAID Enabled or Off. NOTE: If a RAID controller is installed, you may need to turn on the SCSI controller. Without the ROMB key and memory module installed — Select either SCSI or Off. IDE CD-ROM Controller Enables the integrated IDE controller.
Option Description Password Setting the Setup Password option to Enabled prevents the system password from being changed or disabled Status at system start-up. To lock the system password, assign a setup password in the Setup Password option and then change the Password Status option to Locked. In this state, you cannot change the system password using the System Password option and cannot be disabled at system start up by pressing .
Discard Changes and Exit Return to Setup System and Setup Password Features NOTICE: The password features provide a basic level of security for the data on your system. If your data requires more security, use additional forms of protection, such as data encryption programs.
The setting shown for the System Password changes to Enabled. Exit the System Setup program and begin using your system. 6. Either reboot your system now for your password protection to take effect or continue working. NOTE: Password protection does not take effect until you reboot the system. Using Your System Password to Secure Your System NOTE: If you have assigned a setup password (see "Using the Setup Password"), the system accepts your setup password as an alternate system password.
repeat steps 2 through 5. Using the Setup Password Assigning a Setup Password You can assign (or change) a setup password only when the Setup Password option is set to Not Enabled. To assign a setup password, highlight the Setup Password option and press the <+> or <–> key. The system prompts you to enter and verify the password. If a character is illegal for password use, the system beeps. NOTE: The setup password can be the same as the system password.