Dell 4100/200, 4100/180 manual Reseat the expansion cards in their connectors

3.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.

4.Verify that each expansion card is firmly seated in its connector.

Are the expansion cards properly seated in their connectors?

Yes. Go to step 6. No. Go to step 5.

5.Reseat the expansion cards in their connectors.

See “Removing an Expansion Card” and “Installing an Expansion Card” in Chapter 8 for instructions on removing and replacing expansion cards.

Is the problem resolved?

Yes. The connection was loose. You have fixed the problem.

No. Go to step 6.

6.Verify that the appropriate cables are firmly con- nected to their corresponding connectors on the expansion cards.

For instructions on which cables should be attached to specific connectors on an expansion card, see the expansion card’s documentation.

Are the appropriate cables firmly attached to their connectors?

Yes. Go to step 8. No. Go to step 7.

7.Reconnect the cable connectors to the appropri- ate connectors on the expansion cards.

Is the problem resolved?

Yes. The cable connections were loose. You have fixed the problem.

No. Go to step 8.

8.Inspect all jumpers and configuration switches on each expansion card.

Most ISA expansion cards have configuration set- tings for an interrupt request (IRQ) line, a direct memory access (DMA) channel, and a base-memory or basic input/output system (BIOS) address. To keep expansion cards from conflicting with each other, you need to know both the starting memory address and the amount of memory required by each card. For instructions on jumpers and configuration settings, see the expansion card’s documentation.

Is each expansion card configured correctly? Yes. Go to step 10.

No. Go to step 9.

9.Reconfigure the card according to the instruc- tions in the card’s documentation.

Is the problem resolved?

Yes. The memory configuration of the card was incorrect. You have fixed the problem.

No. Go to step 10.

10.Inspect all configuration jumpers on the system board to ensure that they are configured correctly for any installed expansion cards.

For information on the configuration jumpers and their settings, see Appendix C, “Jumpers and Switches.”

Are the system board’s configuration jumpers set correctly?

Yes. Go to step 12. No. Go to step 11.

11.Correct the system board’s configuration jumper settings.

Is the problem resolved?

Yes. You have fixed the problem. No. Go to step 12.

12.Remove all expansion cards except the hard-disk drive controller card (if one is installed).

See “Removing an Expansion Card” in Chapter 8 for information on removing expansion cards.

Checking Inside the Computer 7-11