Internal Visual Inspection - Dell OptiPlex GXa Service Manual

2-4 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual
4. During the boot routine, observe the system for any of the following:
•
Diskette-drive and hard-disk drive access indicators: These indicators
light up in response to data being transferred to or from the drives. If
either of these indicators fails to light up during the boot routine, trou-
bleshoot the diskette drive or hard-disk drive subsystem, as appropriate.
•
System error messages: These messages can indicate problems or pro-
vide status information. If a system error message is displayed, see
Table 3-2.
•
Beep codes: A beep code is a series of beeps that indicates an error con-
dition. If the system emits a beep code, see Table 3-1.
5. Observe the monitor screen for the Diagnostics Menu.
Does the Diagnostics Menu appear?
Yes. See "Running the System Diagnostics" found later in this chapter.
No. Proceed to step 6.
6. Insert another copy of the diagnostics diskette into the diskette drive,
and reboot the system.
Does the Diagnostics Menu appear?
Yes. See "Running the System Diagnostics" found later in this chapter.
No. Proceed to the next section, "Internal Visual Inspection."
I
nternal Visual Inspection
CAUTION: Before you proceed with the internal visual inspection
described in this section, ensure that the user has saved all open files and
exited all open application programs if possible.
A simple visual inspection of a computer's interior hardware can often lead to
the source of a problem, such as a loose expansion card, cable connector, or
mounting screw. When you perform the visual inspection, refer to Figures 1-3
through 1-6 as appropriate for your system for component location information.
To perform the internal visual inspection, follow these steps:
1. Turn off the system, including any attached peripherals, and disconnect
all the AC power cables from their power sources.
2. Remove the computer cover.