Dell 4100/180 Troubleshooting System Memory, Run the RAM Test Group in the system diagnostics

13.Replace the left computer cover, reconnect the system to AC power, and turn it on.

14.Enter the System Setup program, and update the system configuration information.

See Chapter 4, “Using the System Setup Program,” in the User’s Guide for instructions.

For any EISA and ISA expansion cards, enter the EISA Configuration Utility, and update the con- figuration information.

See Chapter 5, “Using the EISA Configuration Util- ity,” in the system User’s Guide for instructions.

15.Run the RAM Test Group in the system diagnostics.

See Chapter 5, “Running the System Diagnostics.” Do the tests complete successfully?

Yes. Go to step 17.

No. See Chapter 11, “Getting Help,” for information on obtaining technical assistance.

16.Turn off the system, disconnect it from AC power, and remove the left computer cover.

17.Reinstall one of the expansion cards you removed in step 12, and repeat steps 13 though 15.

18.Run the RAM Test Group in the system diagnostics.

Do the tests complete successfully? Yes. Go to step 20.

No. See Chapter 11, “Getting Help,” for information on obtaining technical assistance.

19.Repeat steps 17 through 19 for each of the remaining expansion cards that you removed in step 12.

Have you reinstalled all of the expansion cards with- out encountering a test failure?

Yes. You have fixed the problem.

No. See Chapter 11, “Getting Help,” for information on obtaining technical assistance.

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 indicators on the keyboard should flash momentarily and then turn off. If the NUM LOCK category in the System Setup program is set to ON, the Num Lock indicator should flash momentarily and then remain on; otherwise, it should turn off. Abnormal operation of these indicators can result from a defective DIMM in socket DIMM A. Follow these steps to troubleshoot system memory:

1.Turn on the system, including any attached peripherals.

Does an error message appear indicating invalid sys- tem configuration information after the memory count completes?

Yes. Go to step 2. No. Go to step 8.

2.Enter the System Setup program to check the

TOTAL MEMORY or SYSTEM MEMORY category.

See Chapter 4, “Using the System Setup Program,” in the User’s Guide for instructions.

Does the amount of memory installed match the

TOTAL MEMORY or SYSTEM MEMORY setting?

Yes. Go to step 8.

No. Go to step 3.

3.Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their power sources.

4.Remove the left computer cover.

See “Removing the Computer Covers” found earlier in this chapter.

CAUTION: See “Protecting Against Electro- static Discharge” in the safety instructions at the front of this guide.

7-12 Dell PowerEdge 4100/180 and 4100/200 Systems Installation and Troubleshooting Guide