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 8864,” on page 23 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.
Beep code Description Action
One continuous beep Microprocessor error.
1. Reseat the following components:
a. (Trained service technician only)
Microprocessor
b. (Trained service technician only)
Optional microprocessor
c. Microprocessor tray
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
b. (Trained service technician only)
Optional microprocessor
c. (Trained service technician only)
Microprocessor tray
Repeating short beeps Keyboard error.
1. Reseat the following components:
a. Keyboard
b. I/O board
2.
Replace the components listed in step 1
one at a time, in the order shown, restarting
the server each time.
Repeating long beeps Memory error. Reseat the DIMMs.
One long and one short
beep
Card error.
1. Reseat the following components:
a. Microprocessor tray
b. I/O board
2.
Replace the following components one at a
time, in the order shown, restarting the
server each time.
a. (Trained service technician only)
Microprocessor tray
b. I/O board
68 IBM System x3850 Type 8864: Problem Determination and Service Guide
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