Dell 4100/180, 4100/200 manual Troubleshooting Expansion Cards, Replacing a Cooling Fan

Replacing a Cooling Fan

Follow these steps to replace a defective cooling fan.

WARNING: Only trained service technicians should perform this procedure. Do not remove the left computer cover with the power on unless you are replacing a cooling fan. (Never remove the right computer cover with the com- puter power on. There are high voltages in this area that can cause bodily harm.)

Do not touch or attempt to service any compo- nents other than the cooling fan. Other components could be damaged if you attempt to service them with the computer power on.

1.Remove the left computer cover.

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

2.Identify the defective cooling fan.

3.Disconnect the cooling fan’s power cable from the FAN connector on the system board.

4.Depress the catch on the fan carrier (see Fig- ure 7-8) and remove the fan carrier from the chassis.

5.Remove the cooling fan from the fan carrier by releasing the two fan retention tabs inside the car- rier (see Figure 7-8).

6.Insert the replacement cooling fan in the carrier, and snap the two fan retention tabs back into position.

Orient the fan so that the power cable is at the upper- right corner of the carrier.

7.Reinstall the fan carrier in the computer.

Insert the two tabs along the lower edge of the fan carrier into the valences in the chassis, then raise the fan carrier into position until the catch on the fan car- rier snaps into place in the computer chassis.

8.Connect the cooling-fan power cable to the FAN connector on the system board.

The fan should begin running.

9.Replace the left computer cover.

Troubleshooting Expansion Cards

If an error message indicates an expansion-card problem or if an expansion card seems to perform incorrectly or not at all, the problem could be a faulty connection, a conflict with software or other hardware, or a faulty

fan carrier

fan

catch

expansion card. Follow these steps to troubleshoot expansion cards:

1. Start the EISA Configuration Utility, and verify

that all Extended Industry-Standard Architec-

ture (EISA) and Industry-Standard Architecture

(ISA) expansion cards have been configured

correctly. Save the configuration before exiting

the utility.

See Chapter 5, “Using the EISA Configuration Util-

ity,” in the system User’s Guide for instructions.

2. Turn off the system, including any attached

peripherals, and disconnect all the AC power

retention tabs (2)

Figure 7-8. Replacing a Cooling Fan

cables from their power sources.

7-10 Dell PowerEdge 4100/180 and 4100/200 Systems Installation and Troubleshooting Guide