Replacing A Cooling Fan; Troubleshooting Expansion Cards - Dell 4100 Installation And Troubleshooting Manual

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.
fan carrier
fan
Figure 7-8. Replacing a Cooling Fan
7-10 Dell PowerEdge 4100/180 and 4100/200 Systems Installation and Troubleshooting Guide
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.
T
roubleshooting 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
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
cables from their power sources.
tabs (2)