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Dell™ PowerEdge™ 2500 Systems Installation and Troubleshooting Guide
If your system is not working as expected, begin troubleshooting using the procedures in this section. This section guides you through some initial checks and procedures that can solve basic system problems and provides troubleshooting procedures for components inside the system. Before you start any of the procedures in this section, take the following steps:
- Lay the system on its side.
- Read the "Safety Instructions" in your System Information document.
- Read "Running the Dell™ Diagnostics" for information about running diagnostics.
- Get the key to the system keylock.
The procedures in this guide require that you remove the cover and work inside the system. While working inside the system, do not attempt to service the system except as explained in this guide and elsewhere in Dell documentation. Always follow the instructions closely. Make sure to review all of the procedures in "Safety Instructions" in your System Information document.
Working inside the system is safe—if you observe the following precautions.
 |
WARNING: The power supplies in this system produce high voltages and energy hazards, which can cause bodily harm. Only trained service technicians are
authorized to remove the system cover and access any of the components inside the system. |
 |
CAUTION: See "Protecting Against Electrostatic Discharge" in the Safety Instructions in your System Information document before performing any procedure which requires you to open the cover. |
Improperly set switches, controls, and loose or improperly connected cables are the most likely source of problems for the system, monitor, or other peripherals (such as a printer, keyboard, mouse, or other external equipment). A quick check of all the switches, controls, and cable connections can easily solve these problems. See Figure 2-3 for the back-panel features and connectors.
- Turn off the system, including any attached peripherals. Disconnect all the power cables from their electrical outlets.
- If the system is connected to a PDU, turn the PDU off and then on again.
If it is not receiving power, plug it into another electrical outlet. If it still is not receiving power, try another PDU.
- Reconnect the system to the electrical outlet or PDU.
- Is the monitor working properly?
See "Troubleshooting the Video Subsystem."
- Is the keyboard working properly?
See "Troubleshooting the Keyboard."
- Are the mouse and printer working properly?
See "Troubleshooting the Basic I/O Functions."
Looking at and listening to the system is important in determining the source of a problem. Look and listen during the system's start-up routine for the indication described in Table 5-1.
Table 5-1. Start-Up Routine Indications
Figure 5-1 shows the rack-mounted and tower version of your system. The illustrations in this document are based on the tower version. Most of the illustrations will depict the system laying on its side.
Figure 5-1. System Orientation
The front bezel has status and attention indicators. Swinging the front bezel open provides access to the power switch, diskette drive, CD-ROM drive, hard-disk drive(s), and power supplies. You must open or remove the front bezel and remove the system cover to gain access to internal components.
- Using the system key, unlock the front bezel.
- Pull the bezel away from the system so that it is perpendicular to the system (see Figure 5-2).
Figure 5-2. Removing the Front Bezel
- Squeeze the retaining pins (see Figure 5-2).
- Rotate the pins upward into the retaining grooves to remove the bezel.
 |
NOTE: The retaining pins are spring loaded. After rotating the pins downward and releasing the pins, they will automatically be inserted into the retaining hinge. You may need to move the bezel slightly to properly align the pins with the retaining hinge. |
- Align the two bezel retaining pins with the retaining hinge on the front of the system.
- Rotate the pins downward, and release the pins to attach the bezel to the system.
- Swing the bezel closed until the bezel snaps into place.
- Using the system key, lock the bezel.
The system is enclosed by a front bezel and a cover. To upgrade or troubleshoot the system, remove the system cover to gain access to internal components.
- Open the front bezel.
See "Removing the Front Bezel."
- Observe the precautions in "Safety First—For You and Your System."
- Loosen the three thumbscrews on the front of the system (see Figure 5-3).
- Slide the system cover backwards and grasp the cover at both ends.
- Carefully lift the cover away from the system.
Figure 5-3. Removing the System Cover
- Check that no tools or parts are left inside the system.
- Fit the cover over the sides of the chassis, and slide the cover forward.
- Secure the cover with the three thumbscrews.
- Close the front bezel.
This section provides troubleshooting procedures for equipment that connects directly to the I/O panel of the system, such as the monitor, keyboard, or mouse. Before you perform any of the procedures, see "External Connections."
- Monitor
- Monitor interface cable
- Video memory
- Video logic
- Check the system and power connections to the monitor.
- Run the video tests in the Dell Diagnostics.
If the tests run successfully, the problem is not related to video hardware. Go to "Finding Software Solutions."
If the tests did not run successfully see "Getting Help" for instructions on obtaining technical assistance.
- A system error message indicates a keyboard problem
- Look at the keyboard and the keyboard cable for any signs of damage.
- Press and release each key on the keyboard.
If the keyboard and its cable appear to be free of physical damage, and the keys work, go to step 4.
If the keyboard or its cable are damaged, continue to step 3.
- Swap the faulty keyboard with a working keyboard.
If the problem is resolved, the keyboard must be replaced. See "Getting Help," for instructions on obtaining technical assistance.
- Run the keyboard test in the Dell Diagnostics.
If you can use the keyboard to select the keyboard test, go to step 6.
If you cannot use the keyboard to select the keyboard test, continue to step 5.
- Swap the faulty keyboard with a working keyboard.
- Did the keyboard test run successfully?
If the problem is resolved, the keyboard must be replaced. If the problem is not resolved, the keyboard controller on the system board is faulty. See "Getting Help," for instructions on obtaining technical assistance.
- A system error message indicates an I/O port problem
- A device connected to the port does not function properly
- Enter the System Setup program, and check the Serial Port 1, Serial Port 2, and Parallel Port settings.
If the communications ports are set to Enabled, go to step 3.
If the communications ports are not set to Enabled, continue to step 2.
- Change the Serial Port 1, Serial Port 2, and Parallel Port settings to Enabled; then reboot the system.
- Check the system setup. See "Using the System Setup Program" in the User's Guide for instructions.
If the system setup is correct, go to step 5.
- Change the necessary statements in the system setup. If the port problem is confined to a particular application program, see the application program's documentation for specific port configuration requirements.
- Reboot the system from the diagnostics diskette, and run the serial ports test and/or the parallel ports test in the Dell Diagnostics.
If the tests did not run successfully, see "Getting Help," for instructions on obtaining technical assistance.
- If the problem persists, see one of the following procedures, "Troubleshooting a Parallel Printer" or "Troubleshooting a Serial I/O Device," depending on the malfunctioning device.
- Device connected to one of the serial ports is not working
- Turn off the system and any peripheral devices connected to the serial ports.
If there is only one serial device connected to the system, go to step 4.
- Disconnect the devices from the serial ports, and connect the malfunctioning device to the other port.
- Turn on the power to the system.
If the problem is resolved, the serial port may be defective. See "Getting Help," for instructions on obtaining technical assistance.
- Swap the interface cable with a known working cable.
If the problem is resolved, the interface cable must be replaced. See "Getting Help," for instructions on obtaining technical assistance.
- Turn off the system and the serial device, and swap the device with a comparable device.
- Turn on the power to the system and the serial device.
If the problem is resolved, the serial device must be replaced. If the problem is not resolved, see "Getting Help," for instructions on obtaining technical assistance.
- Parallel printer is not working
- Turn off the power from the printer and the system.
- Swap the parallel printer interface cable with a known working cable.
- Turn on the power to the printer and the system.
- Attempt to print with the printer.
If the print operation is successful, the interface cable must be replaced. See "Getting Help," for instructions on obtaining technical assistance.
- Run the printer's self-test.
If the self-test is not successful, the printer is probably defective. If the printer was purchased from Dell, see "Getting Help," for instructions on obtaining technical assistance.
- Attempt to print on the parallel printer.
If the print operation is not successful, the see "Getting Help," for instructions on obtaining technical assistance.
- A system error message indicates a problem.
- Device connected to the port is not working.
- Enter the System Setup program, and check that the USB ports are enabled. See "Using the System Setup Program" in the User's Guide for instructions.
- Turn off the system and any USB devices.
If there is only one USB device connected to the system, go to step 5.
- Disconnect the USB devices, and connect the malfunctioning device to the other port.
- Apply power to the system and the reconnected device.
If the problem is resolved, the USB port may be defective. See "Getting Help," for instructions on obtaining technical assistance.
- If possible, swap the interface cable with a known working cable.
If the problem is resolved, the interface cable must be replaced. See "Getting Help," for instructions on obtaining technical assistance.
- Turn off the system and the USB device, and swap the device with a comparable device.
- Turn on the power to the system and the USB device.
If the problem is resolved, the USB device must be replaced. If the problem is not resolved, see "Getting Help," for instructions on obtaining technical assistance.
- NIC cannot communicate with net
- Enter the System Setup program and confirm that the NIC is enabled.
See "Using the System Setup Program" in the User's Guide for instructions.
- Check the two indicators on the left and right corners of the NIC connector on the system's back-panel (see Figure 5-4).
The green link indicator shows that the adapter is connected to a valid link partner. The amber activity indicator lights if network data is being sent or received.
- If the link indicator is not on, check all cable connections.
- Try changing the auto-negotiation setting, if possible.
- Try another port on the switch or hub.
- If the activity indicator does not light, the network driver files might be damaged or deleted.
- Reinstall the drivers.
- Make sure the appropriate drivers are installed and the protocols are bound.
Figure 5-4. NIC Indicators
In Figure 5-5, the system cover and front bezel are removed to provide an interior view of the system.
Figure 5-5. Inside 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 cards at 64-bit/66 MHz, three cards at 64-bit/33 MHz, and two cards at 32-bit/33 MHz). The peripheral bay provides space for a 3.5-inch diskette drive and a CD-ROM drive and two other devices (hard-disk drives, tape drives).
The hard-disk drive bays provide space for up to six 1-inch SCSI hard-disk drives. These hard-disk drives are connected to a SCSI host adapter on the system board or on an expansion card, via the SCSI backplane board.
Power is supplied to the system board, SCSI backplane board, and internal peripherals via a single non-redundant power supply. There is an option for up to three hot-pluggable redundant power supplies that are front loadable and slide into connectors mounted on the the PDB. When this option is installed, the PDB will provide power to the system board, SCSI backplane board, and internal peripherals.
For non-SCSI drives such as the diskette drive and CD-ROM drive, an interface cable connects the interposer board, attached to the diskette drive and CD-ROM drive, to the system board. For SCSI devices, interface cables connect externally accessible SCSI devices and the SCSI backplane board to a SCSI host adapter either on the system board or on an expansion card. (For more information, see "Installing Drives").
During an installation or troubleshooting procedure, you may be required to change a jumper. For information on the system board jumpers, see "Jumpers and Connectors."
The optional Dell OpenManage™ Server Agent management application monitors critical system voltages and temperatures, the system cooling fans, and the status of the SCSI hard-disk drives in the system. The application generates alert messages that appear in the alert log window. For information about the alert log window and options, see the Dell OpenManage Server Agent documentation.
- Liquid spills
- Splashes
- Excessive humidity
- Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
- Remove the system cover.
- Remove all expansion cards installed in the system.
- Let the system dry thoroughly for at least 24 hours.
- Replace the system cover, reconnect the system to the electrical outlet, and turn on the system.
If the system does not start up properly, see "Getting Help," for instructions on obtaining technical assistance.
- If the system starts up normally, shut down the system and reinstall all expansion cards you removed in step 3.
- Run the system board tests in the Dell Diagnostics to confirm that the system is working properly.
If the tests did not complete successfully, see "Getting Help," for instructions on obtaining technical assistance.
- System dropped or damaged
- Check the following connections:
- Expansion-card connections to the system board
- Drive carrier connections to the SCSI backplane board
- Make sure that all cables are properly connected and that all components are properly seated in their connectors and sockets.
- Run the system board tests in the Dell Diagnostics.
If the tests did not complete successfully, see "Getting Help," for instructions on obtaining technical assistance.
- Error message shows problem with the battery
- System setup program loses the system configuration information
- System date and time will not stay current
- Check the connection of the coin cell battery to the system board.
See "Replacing the System Battery" in "Installing System Board Options."
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WARNING: There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type
recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. |
- If the problem is not resolved by reseating the battery, replace the battery.
If the problem is not resolved by replacing the battery, see "Getting Help," for instructions on obtaining technical assistance.
- Amber fault indicator on the system front panel lights up
- Red fault indicator blinks on the power supply or is lit up continuously
- Open the front bezel.
See "Removing the Front Bezel."
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CAUTION: The power supplies are hot-pluggable. The system requires two power supplies to be installed for the system to operate normally. The system is in the redundant mode when all three power supplies are installed. Remove and replace
only one power supply at a time. |
- While grasping the power supply handle, push down on the release lever and pull the power supply straight out to clear the chassis.
- Slide the new power supply into the chassis.
- Amber fault indicator on the system front bezel lights up
- Server management application program issues a fan-related error message
- Open the front bezel.
See "Removing the Front Bezel."
- Remove the system cover.
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NOTE: There are two fan assemblies containing two individual fans. One assembly is located near the SCSI backplane board. The other fan assembly is attached to the back-panel. |
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CAUTION: The cooling fans are hot-pluggable. To maintain proper cooling while the system is on, only replace one fan at a time. |
- Locate the faulty fan and while pressing the release lever, grasp the fan and lift straight up to clear the fan assembly (see Figure 5-6).
Figure 5-6. Removing a Cooling Fan
- Reseat the fan in its compartment.
Ensure that the fan connector is firmly seated.
- If the problem is not resolved, insert a replacement cooling fan.
- If the replacement fan does not operate, one of the fan bay connectors is faulty.
See "Getting Help," for information on obtaining technical assistance.
- Error message indicates an expansion-card problem
- Expansion card seems to perform incorrectly or not at all
- Turn off the system and disconnect the system from its electrical outlet.
- Open the front bezel.
See "Removing the Front Bezel."
- Remove the system cover.
- Verify that each expansion card is firmly seated in its connector.
- Verify that any appropriate cables are firmly connected to their corresponding connectors on the expansion cards.
- Install the system cover.
- Connect the system to an electrical outlet and turn on the system. If the problem still exists, go to step 8.
- Turn off the system and disconnect the system from its electrical outlet.
- Remove the system cover.
- Remove all expansion cards installed in the system.
- Install the system cover.
- Connect the system to an electrical outlet and turn on the system.
- Run the system memory tests in the Dell Diagnostics.
If the tests do not complete successfully, see "Getting Help," for information on obtaining technical assistance.
- Reinstall one of the expansion cards you removed in step 5 and repeat step 6.
Repeat steps 8 and 9, and steps 11 through 13.
- Repeat step 14 for each of the remaining expansion cards.
If you have reinstalled all of the expansion cards and the system memory tests are still failing, see "Getting Help," for information on obtaining technical assistance.
- Faulty memory module
- Faulty system board
- Turn on the power to the system, including any attached peripherals.
If there is not an error message, go to step 8.
- Enter the System Setup program to check the system memory setting.
See "Using the System Setup Program," in the User's Guide for instructions.
- If the amount of memory installed does match the system memory setting, go to step 9.
- Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
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CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System Information document. |
- Remove the system cover.
- Remove the cooling shroud (see "Removing the Cooling Shroud" in "Installing System Board Options").
- Reseat the memory modules in their sockets.
- Install the cooling shroud (see "Installing the Cooling Shroud" in "Installing System Board Options").
- Replace the system cover, reconnect the system to power, and turn on the system.
- Enter the System Setup program and check the system memory again.
- Does the amount of memory installed match the system memory?
If the amount of memory installed does not match the system memory setting, continue to step 13.
- Reboot the system, and observe the monitor screen and the Num Lock, Caps Lock, and Scroll Lock indicators on the keyboard.
If the monitor screen does remain blank, and the Num Lock, Caps Lock, and Scroll Lock indicators on the keyboard remain on, continue to step 13.
If the monitor screen does not remain blank, and the Num Lock, Caps Lock, and Scroll Lock indicators on the keyboard remain on, continue to step 18.
- Repeat steps 4 through 6.
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NOTE: There are multiple configurations for the memory modules; see "Memory Module
Installation Guidelines" in "Installing System Board Options." The following steps are an
example of one configuration. |
- Swap the memory module pair in bank 1 (DIMM_A and DIMM_B) with one of the same capacity.
- Replace the system cover and reconnect the system to an electrical outlet.
- Reboot the system, and observe the monitor screen and the indicators on the keyboard.
- If the problem still exists, repeat steps 14 through 16 for each memory module pair installed.
If the problem is not resolved, see "Getting Help," for instructions on obtaining technical assistance.
- Run the system memory test in the Dell Diagnostics.
If the test does not complete successfully, see "Getting Help," for instructions on obtaining technical assistance.
- Monitor not operating
- Monitor interface cable not connected correctly or is faulty
- Video logic problems
- Check the system and power connections to the monitor.
- Run the video tests in the Dell Diagnostics.
If the tests run successfully, the problem is not related to video hardware. See "Finding Software Solutions."
If the tests did not run successfully see "Getting Help," for instructions on obtaining technical assistance.
- Error message indicating a system board problem
- Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
- Open the front bezel.
See "Removing the Front Bezel."
- Remove the system cover.
- Remove all expansion cards except the SCSI host adapter card for the boot drive.
- Replace the system cover, reconnect the system to power, and turn on the system.
- Run the system board tests in the Dell Diagnostics.
If the tests does not run successfully, see "Getting Help," for instructions on obtaining technical assistance.
- Turn off the system, disconnect it from power, and remove the system cover.
- Reinstall one of the expansion cards that you removed in step 4.
- Replace the system cover, reconnect the system to power, and turn on the system.
- Run the system board tests again.
Did the tests run successfully?
If the tests does not complete successfully, see "Getting Help," for instructions on obtaining technical assistance.
- Repeat steps 8 through 10 for the remaining expansion cards that you removed in step 4.
If you have reinstalled all of the expansion cards and the problem still persists, see "Getting Help," for instructions on obtaining technical assistance.
- Error message indicating a diskette drive problem during execution of either the boot routine or the Dell Diagnostics
- Enter the system setup program, and verify that the system is configured correctly. See "Using the System Setup Program" in the User's Guide for instructions.
- Run the diskette drive tests in the Dell Diagnostics to see whether the diskette drive now works correctly.
- Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
- Verify that the diskette/CD-ROM drive interface cable is securely connected between the interposer board on the diskette/CD-ROM drive assembly and the system board.
- Connect the system to its electrical outlet and turn on the system, including any attached peripherals.
- Run the diskette drive tests in the Dell Diagnostics to determine whether the diskette drive works correctly.
- If the drive still does not work, remove all expansion cards.
- Run the diskette drive tests in the Dell Diagnostics to determine whether the diskette drive now works correctly.
If the test ran successfully, an expansion card may be conflicting with the diskette drive logic, or you may have a faulty expansion card. Continue to step 9.
If the test failed, see "Getting Help," for instructions on obtaining technical assistance.
- Reinstall one of the expansion cards you removed in step 7.
- Retest and run the diskette drives test in the Dell Diagnostics to determine whether the diskette drive subsystem now works correctly.
- Repeat steps 9 and 10 until all expansion cards have been reinstalled or until one of the expansion cards prevents the system from booting from the diagnostics diskette.
If the problem is not resolved, see "Getting Help," for instructions on obtaining technical assistance.
- System cannot read data from CD
- CD-ROM indicator fails to flash during boot
- Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
- Open the front bezel.
See "Removing the Front Bezel."
- Remove the system cover.
- Verify that the diskette/CD-ROM drive interface cable is securely connected between the interposer board on the diskette/CD-ROM drive assembly and the system board.
- Connect the system to its electrical outlet and turn on the system, including any attached peripherals.
- Run the IDE devices tests in the Dell Diagnostics to determine whether the CD-ROM drive now works correctly.
If the problem is not resolved, see "Getting Help," for instructions on obtaining technical assistance.
- Defective tape drive
- Defective tape cartridge
- Software or device driver
- Defective SCSI host adapter
- Tape drive online indicator fails to light after operating system installs
- Remove the tape that was in use when the problem occurred and replace it with a tape that you know is not defective.
- Verify that any required SCSI device drivers are installed on the hard-disk drive and are configured correctly.
- See "Using the Dell OpenManage Server Assistant CD" in the User's Guide for instructions on installing and configuring device drivers for the system's integrated SCSI host adapter or Dell host adapter card.
- For any other type of SCSI host adapter card, see the documentation that accompanied the SCSI host adapter card.
- Reinstall the tape backup software as instructed in the tape-backup software documentation.
- Check the external cable connections to the drive.
- Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
- Check the SCSI cable connection to the host adapter card and the SCSI tape drive. Check the DC power cable connection to the tape drive.
- Verify that the tape drive is configured for a unique SCSI ID number and that the tape drive is terminated or not terminated as appropriate.
See the documentation for the tape drive for instructions on selecting the SCSI ID and enabling or disabling termination.
- Reconfigure the tape drive's SCSI ID and termination settings as appropriate. Reinstall the tape drive and reconnect the system to the electrical outlet. Turn on the system.
- Replace the SCSI cable that connects the tape drive to the SCSI host adapter. Reconnect the system to the electrical outlet and apply power.
- If the problem is not resolved, see "Getting Help," for instructions on obtaining technical assistance.
- The drive itself
- SCSI backplane board
- SCSI cable connections to the system board
- Systems using an optional Dell host adapter card issue the following signals by using the drive indicator lights adjacent to each hard-disk drive:
- Hard drive failure indicator on the control panel lights
- If a drive shows signs of imminent failure, the drive online indicator stays on and the drive failure indicator blinks on briefly each second.
- If a drive has failed, the drive online indicator turns off and the drive failure indicator blinks on briefly each second.
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CAUTION: This troubleshooting procedure can destroy data stored on the hard-disk drive. Before you proceed, back up all the files on the hard-disk drive. |
- If the integrated SCSI host adapter is being used to control the SCSI backplane board, reboot the system and press <Ctrl><q> to enter the SCSI configuration utility program.
|
NOTE: If your system has a Dell PERC 3installed, reboot the system and press
<Ctrl><h>. See the documentation supplied with the controller for information on the
configuration utility. |
- Check that the primary SCSI channel is enabled, and reboot the system.
- Verify that the device drivers are installed and configured correctly.
See the documentation for the system's operating system.
- Remove the drive carrier and install it in the another drive bay.
- If the problem is resolved, the SCSI backplane board has a defective connector. See "Getting Help," for instructions on obtaining technical assistance.
- Check the SCSI cable connections inside the system:
- Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
- Remove the system cover.
- Check the SCSI cable connection to the SCSI host adapter.
The SCSI cable may be connected to the internal SCSI host adapter on the system board or a SCSI host adapter installed in an expansion slot.
|
NOTE: If the SCSI cable is connected to the SCSI channel A only, all six hard-disk drives are controlled. If both SCSI channels A and B are connected, the SCSI channel A controller controls hard-disk drives 0 through 2 (SCSI ID 0-2) and the SCSI channel B
controller controls hard-disk drives 3 through 5 (SCSI ID 3-5). |
- Partition and logically format the hard-disk drive. If possible, restore the files to the drive.
To partition and logically format the drive, see the documentation for the system's operating system.
- If the problem is not resolved, see "Getting Help," for instructions on obtaining technical assistance.
- Error message indicating an integrated RAID controller problem.
- Enter the System Setup program and check the setting for the integrated RAID controller.
See "Using the System Setup Program" in the User's Guide for instructions.
If the controller is enabled, go to step 8.
- Change the RAID controller setting to Enabled, and then reboot the system.
- See the documentation provided with the RAID controller software and check the software settings.
- Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
- Open the front bezel (see "Removing the Front Bezel").
- Remove the system cover.
- Remove the cooling shroud.
- Reseat the RAID memory module in its socket.
See "Adding Memory" in "Installing System Board Options" for general instructions on removing and replacing DIMMs.
- Reseat the RAID hardware key in its socket.
See Figure 6-1 for the location of the RAID hardware key.
- Replace the RAID backup battery.
- Replace the cooling shroud and system cover, reconnect the system to the electrical outlet, and reboot the system.
If the problem is not resolved, see "Getting Help," for instructions on obtaining technical assistance.
Your system may contain an optional RAID controller card. If you encounter problems with a controller, see the RAID controller's documentation for detailed information on troubleshooting the RAID controller.
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Safety First—For You and Your System