IBM x3550 Problem Determination And Service Manual page 124

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 3, "Parts listing, Type 7978 and 1913 server," on page 29 to determine which components are
CRUs and which components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Beep code
One continuous beep.
No beep
No beep
106
IBM System x3550 Type 7978 and 1913: Problem Determination and Service Guide
Description
Possible microprocessor problem.
No beep and no video (system Attention
LED is off)
No beep and no video (system Attention
LED is on)
Action
1. Reseat the following components, one at a
time, in the order shown, restarting the
server each time:
a. (Trained service technician only)
Microprocessor 1
b. (Trained service technician only)
Microprocessor 2 (if installed)
2. (Trained service technician only) Remove
microprocessor 2 and restart the server
v If no beep code occurs, microprocessor
2 might have failed; replace
microprocessor 2.
v If the beep code remains, remove
microprocessor 1 and install
microprocessor 2 in the connector for
microprocessor 1; then, restart the
server. If no beep code occurs,
microprocessor 1 might have failed;
replace microprocessor 1.
3. Replace the following components, one at
a time, in the order shown, restarting the
server each time:
a. (Trained service technician only)
Microprocessor 1
b. (Trained service technician only)
Microprocessor 2
c. (Trained service technician only)
System board
(Trained service technician only) Replace the
system board.
See "Information panel system error LED."