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Dell POWEREDGE 300 Checking Manual

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C H A P T E R 7
Checking Inside the Computer
Your Dell PowerEdge 300 system supports a variety of internal options that expand
system capabilities. This file prepares you to install options inside the computer. It
describes how to remove and replace the computer cover and rotate the power sup-
ply away from the system board. It also familiarizes you with the internal components
you may handle if you install Dell hardware options.

Before You Begin

To make working inside your computer easier, make sure you have adequate lighting
and a clean work space. If you temporarily disconnect cables or remove expansion
cards, note the position of the connectors and slots so that you can reassemble the
system correctly.
You will use the information in this section every time you install a hardware option
inside your computer. Read this section carefully , because the information is not
repeated in such detail elsewhere in this guide.
Safety First—For You and Your Computer
Working inside your computer is safe— if you observe the following precautions.
WARNING: FOR YOUR PERSONAL SAFETY AND PROTECTION OF YOUR
EQUIPMENT
Before starting to work on your computer, perform the following steps in the
sequence indicated:
1.
Turn off your computer and all peripherals.
2.
Disconnect your computer and peripherals from their AC power sources.
Also, disconnect any telephone or telecommunication lines from the com-
puter. Doing so reduces the potential for personal injury or shock.
3.
If you are disconnecting a peripheral from the computer or are removing a
component from the system board, wait 10 to 20 seconds after disconnect-
ing the computer from AC power before disconnecting the peripheral or
removing the component to avoid possible damage to the system board.
Checking Inside the Computer
7-1

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  • Page 1: Before You Begin

    C H A P T E R 7 Checking Inside the Computer Your Dell PowerEdge 300 system supports a variety of internal options that expand system capabilities. This file prepares you to install options inside the computer. It describes how to remove and replace the computer cover and rotate the power sup- ply away from the system board.

  • Page 2: Unpacking Your Hardware Option

    Also avoid touching components or contacts on a card and avoid touching pins on a chip. In addition, Dell recommends that you periodically review the safety instructions at the front of this guide. Unpacking Your Hardware Option When you remove an option from its shipping carton, you may find it wrapped in anti- static packing material designed to protect it from electrostatic damage.
  • Page 3 (see Figure 7-2). Disengage the tabs that secure the cover to the top of the chassis, and lift the cover away. support.dell.com security cable slot Checking Inside the Computer...

  • Page 4: Replacing The Computer Cover

    Figure 7-2. Removing the Computer Cover Replacing the Computer Cover Use the following procedure to replace the computer cover: Check all cable connections, especially those that might have come loose during your work. Fold cables out of the way so that they do not catch on the computer cover.
  • Page 5 User's Guide for instructions. NOTE: If a setup password has been assigned by someone else, contact your net- work administrator for information on resetting the chassis intrusion detector. support.dell.com tabs (3) recessed slot Checking Inside the Computer...

  • Page 6: Inside Your Computer

    Inside Your Computer Figure 7-4 shows a side view of your computer to help you orient yourself when installing hardware options. Unless otherwise specified, locations or directions rela- tive to the computer are as shown. back of computer left side right side front of computer Figure 7-4.
  • Page 7 The wide ribbon cables are the interface cables for internal drives. For the diskette drive, an interface cable connects each drive to an interface connector on the system board or on an expansion card. For IDE devices, interface cables connect the devices support.dell.com power supply padlock ring...
  • Page 8 to an IDE connector on the system board. (For more information, see Chapter 9, “Installing Drives.”) During an installation or troubleshooting procedure, you may be required to change a jumper or switch setting. For information on the system board jumpers, see Appendix B, “Jumpers, Switches, and Connectors.”...

  • Page 9: Removing And Replacing The Front Bezel

    While pressing the tab release, tilt the bezel away from the chassis, disengage the two retaining hooks at the bottom of the bezel, and carefully pull the bezel away from the chassis. support.dell.com retaining hooks (2) Checking Inside the Computer...

  • Page 10: Removing And Replacing Front-Panel Inserts

    To replace the bezel, fit the two retaining hooks on the bezel into their corresponding slots at the bottom of the chassis. Then rotate the top of the bezel toward the chassis until the top tabs snap into their corresponding slots on the bezel. Removing and Replacing Front-Panel Inserts Empty 5.25-inch drive bays contain a front-panel insert to protect the inside of the...
  • Page 11 To see the trap log, select any enterprise under the SNMP trap log icon. More information about the Alert Log window and options is provided in the Dell Open- Manage Server Agent documentation found on the Dell OpenManage Server Assistant CD.

  • Page 12: Troubleshooting A Wet Computer

    See “Installing an Expansion Card,” in Chapter 8. Replace the computer cover, and reconnect the system to the electrical outlet. Run the System Set test group in the Dell Diagnostics. See Chapter 5, “Running the Dell Diagnostics.” Did the tests run successfully? Yes.

  • Page 13: Troubleshooting The Battery

    Dell. Follow these steps to troubleshoot a dam- aged computer: Turn off the system, including any attached peripherals, and disconnect the sys- tem from its electrical outlet. CAUTION: See “Protecting Against Electrostatic Discharge” in the safety instructions at the front of this guide.

  • Page 14: Troubleshooting The Power Supply

    Check the connection of the coin cell battery to the system board. Is the battery firmly installed in the battery socket on the system board? Yes. Go to step 6. No. Go to step 5. Reseat the battery in its socket. Is the problem resolved? Yes.

  • Page 15: Troubleshooting Expansion Cards

    Remove the computer cover and verify that each expansion card is firmly seated in its connector. See “Removing the Computer Cover,” found earlier in this chapter. Are the expansion cards properly seated in their connectors? Yes . Go to step 5. No. Go to step 4. support.dell.com Checking Inside the Computer 7-15...
  • Page 16 Reseat the expansion cards in their connectors. See “Removing an Expansion Card” and “Installing an Expansion Card” in Chap- ter 8 for instructions on removing and replacing expansion cards. Is the problem resolved? Yes. The connection was loose. You have fixed the problem. No.
  • Page 17 For any ISA expansion cards, run the RCU and update the configuration informa- tion. See “Using the Resource Configuration Utility” in the User's Guide for instructions. 12. Run the RAM test group in the Dell Diagnostics. See Chapter 5, “Running the Dell Diagnostics.” Did the tests run successfully? Yes.

  • Page 18: Troubleshooting System Memory

    Troubleshooting System Memory A system memory problem can be a faulty dual in-line memory module (DIMM) or a faulty system board. If a random-access memory (RAM) error message appears, the system probably has a memory problem. When you turn on or reboot the system, the <Caps Lock> and <Scroll Lock> indica- tors on the keyboard should flash momentarily and then turn off.
  • Page 19 Is the problem resolved? Yes. You have fixed the problem. No. Go to step 13. 13. Run the RAM test group in the Dell Diagnostics. See Chapter 5, “Running the Dell Diagnostics.” Did the tests run successfully? Yes. You have fixed the problem.

  • Page 20: Troubleshooting The Video Subsystem

    Follow these steps to troubleshoot the video subsystem: Run the Video test group in the Dell Diagnostics. See Chapter 5, “Running the Dell Diagnostics.” Most of the tests in the Video test group are interactive; that is, you must respond before the diagnostics continues with the next test.

  • Page 21: Troubleshooting The System Board

    Replace the computer cover, reconnect the system to the electrical outlet, and turn on the system. For any ISA expansion cards, run the RCU and update the configuration information. See “Using the Resource Configuration Utility” in the User's Guide for instructions. support.dell.com Checking Inside the Computer 7-21...
  • Page 22 Enter the System Setup program and update the system information. See “Using the System Setup Program” in the User's Guide for instructions. Run the System Set test group in the Dell Diagnostics. See Chapter 5, “Running the Dell Diagnostics.” Did the tests run successfully? Yes.

  • Page 23: Troubleshooting The Diskette Drive Subsystem

    Troubleshooting the Diskette Drive Subsystem If the monitor displays a system error message indicating a diskette drive problem during execution of either the boot routine or the Dell Diagnostics, the problem may be caused by any of the following conditions: •...
  • Page 24 11. Replace the computer cover, reconnect the system to the electrical outlet, and turn on the system. 12. Run the Diskette Drives test group in the Dell Diagnostics to determine whether the diskette drive subsystem now works correctly. Did the tests run successfully? Yes.
  • Page 25 19. Replace the computer cover, reconnect the system to the electrical outlet, and turn on the system. 20. Run the Diskette Drives test group in the Dell Diagnostics to see whether the diskette drive subsystem now works correctly. Did the tests run successfully? Yes.
  • Page 26 7-26 Installation and Troubleshooting Guide...

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