Service Manual

Basic Troubleshooting 2-3
7. Inspect all external monitor controls for any obvious damage or
improper settings.
For proper settings of the video monitor controls, see the documentation
for the monitor.
8. Inspect the keyboard to ensure that no keys are sticking.
If one or more keys are sticking, it may be necessary to replace the
keyboard.
9. Inspect the exterior of the computer, including all controls and
indicators, and all user-accessible data storage devices for any
signs of physical damage.
Does the inspection reveal any problems?
Ye s . Proceed to the appropriate procedure in Chapter 4, “Removing and
Replacing Parts.”
No. Proceed to the next section, “Observing the Boot Routine.”
Observing the Boot Routine
After you have performed an external visual inspection as described in the pre-
vious section, you should boot the system and, while the boot routine is
running, observe the system for any indications of problems.
NOTES: Most of the steps in this procedure require observation of system
functions and indications, some of which can occur simultaneously. It may be
necessary to reboot the system several times in order to complete all of these
steps.
To perform the following procedure, you need a Dell Diagnostics Diskette cre-
ated from the Dell Server Assistant CD. If such a diskette is not available, you
can create it as described in “Create Diskettes” in Chapter 2 of the User’s
Guide.
To observe problem indications during the boot routine, follow these steps:
1. If the system is off, turn on all peripherals and the computer.
Insert the Dell Diagnostics Diskette into the diskette drive and
reboot the system.
2. Check each power supply fan.
Does the fan run normally?
Ye s . Proceed to step 3.
No. Troubleshoot the system power supply.