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2-4 Dell Dimension XPS H233 and XPS H266 Systems Service Manual
4. While the boot routine is running, observe the computer for any of the
following:
•
Diskette-drive and hard-disk drive access indicator activity
These indicators light in response to data being transferred to or from
the drives. If either of these indicators fails to light during the boot rou-
tine, troubleshoot the diskette-drive or hard-disk drive subsystem, as
appropriate.
•
Beep codes
A beep code is a series of beeps that indicates an error condition. If the
computer emits a beep code, refer to Table 3-1.
NOTE: The computer beeps once during the boot routine. This single
beep is normal and is not a beep code.
•
System error messages
These messages can indicate problems or provide status information. If
a system error message displays, refer to Table 3-2.
5. Observe the monitor screen for the Diagnostics Menu.
Does the Diagnostics Menu display?
Yes.
See “Running the Diagnostics” found later in this chapter.
No.
Proceed to step 6.
6. Insert another copy of the
Dell Diagnostics Diskette
into the diskette drive,
and reboot the computer.
Does the Diagnostics Menu display?
Yes.
See “Running the Diagnostics” found later in this chapter.
No.
Remove the diagnostics diskette from the diskette drive; then proceed to
the next section, “Internal Visual Inspection.”
I
nternal Visual Inspection
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 “System Fea-
tures” in Chapter 1 to locate system components.
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.
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.