IBM x3690 X5 Service Manual page 82

v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 4, "Parts listing, System x3690 X5 Types 7147, 7148, 7149, and 7192," on page 249 to determine
which components are customer replaceable units (CRU) and which components are field replaceable units
(FRU).
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
Trained service technician.
Symptom
The server does not start.
(Continued)
The server does not turn off.
The server unexpectedly shuts
down, and the LEDs on the
operator information panel are
not lit.
64
System x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide
Action
If the Channel E power LED is lit, check components in the following order:
1. (Trained service technician only) Remove the all microprocessors. (Trained
service technician only) toggle the switch block (SW2), switch 3 to allow the
server to power-on. See Table 3 on page 22 for the location of the SW2 switch
block on the system board. Try restarting the server. If the server starts,
reinstall the microprocessors one at a time, starting the server each time, to
isolate the defective device.
2. (Trained service technician only) Replace microprocessor.
3. (Trained service technician only) Replace the system board.
If the Channel F power LED is lit, check components in the following order:
1. Remove the memory tray. Try restarting the server. If the server starts, reinstall
the memory tray. Restart the server. if the problem remains:
2. Replace any failing device.
3. (Trained service technician only) Replace the system board.
If the Channel G power LED is lit, check components in the following order:
1. Remove the DIMMs from the system board. Try restarting the server. If the
server starts, reinstall the each DIMM pair that was removed one pair at a
time, starting the server each time, to isolate the defective device.
2. Replace any failing DIMMs.
3. (Trained service technician only) Replace the system board.
1. Determine whether you are using an Advanced Configuration and Power
Interface (ACPI) or a non-ACPI operating system. If you are using a non-ACPI
operating system, complete the following steps:
a. Press Ctrl+Alt+Delete.
b. Turn off the server by pressing the power-control button and hold it down
for 5 seconds.
c. Restart the server.
d. If the server fails POST and the power-control button does not work,
disconnect the ac power cord for 20 seconds; then, reconnect the ac power
cord and restart the server.
2. If the problem remains or if you are using an ACPI-aware operating system,
suspect the system board.
See "Solving undetermined problems" on page 245.