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Table 7. Problem indicators (continued)
You receive an error code or text
message on your screen.
Diagnostic checkpoints
Service personnel use diagnostic checkpoints to determine where the system
has stopped responding. You can activate these diagnostic checkpoints from
the Basic Input Output System (BIOS) setup utility, or by pressing Esc (escape)
during the system Power-On Self Test (POST). See "Start options" on page 56
for more details.
The system administrator can activate the diagnostic messages from the Start
Options menu of the BIOS setup utility (see "Start options" on page 56). In
addition, the user can follow the instructions in "Clearing the administrator
password and CMOS, creating a recovery CompactFlash card, and reading a
CompactFlash card" on page 24, and activate the diagnostic checkpoints.
"Clearing the administrator password and CMOS, creating a recovery
CompactFlash card, and reading a CompactFlash card" on page 24 is the
primary problem analysis procedure, and should be the first attempt that is
made to solve the problems that are listed in "Diagnostic error table" on
page 101. The "Diagnostic error table" on page 101 lists the following
secondary problem recoveries in the third column:
v "Replacing the logic unit" on page 9.
v "Installing an optional PCI card" on page 19.
v "Exchanging the memory" on page 20.
v Replacing the keyboard.
v Replacing the mouse.
For example, if the system fails at the "3b" checkpoint (refer to "Diagnostic
error table" on page 101), the checkpoint displays on the monitor. This
checkpoint indicates that the system cache is probably bad. The first recovery
step is to clear CMOS (see "Clearing the administrator password and CMOS,
creating a recovery CompactFlash card, and reading a CompactFlash card" on
page 24
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IBM Network Station
v Record any error messages, audio beep sequence, or LED
indications, and a description of the problem.
v Perform any action or actions indicated within the error
message.
v Look for the error in the following sections:
– "Diagnostic error table" on page 101.
– "BIOS error messages" on page 103.
– "Configuration errors" on page 105.
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