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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, System x3755 Type 8877 and 7163," on page 25 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
Three short
Memory error.
beeps
82
IBM System x3755 Type 8877 and 7163: Problem Determination and Service Guide
Action
1. Reseat the microprocessor/memory cards, see "Removing
a microprocessor/memory card" on page 51 and
"Replacing a microprocessor/memory card" on page 51.
2. Reseat the DIMMs, see "Removing a DIMM" on page 48
and "Replacing a DIMM" on page 49.
3. Locate the failing DIMMs:
a. Remove all DIMMs from the server, see "Removing a
DIMM" on page 48.
b. Beginning with the primary bank of DIMMs, return one
bank of DIMMs to the server at a time, restarting the
server each time, until the beep code error returns.
See "Replacing a DIMM" on page 49.
c. Replace one pair of DIMMs at a time in the failing
bank with an identical pair of known good DIMMs,
restarting the server after each pair, until the beep
code error returns. See "Replacing a DIMM" on page
49.
d. Replace one DIMM at a time in the failing pair with an
identical known good DIMM, restarting the server after
each DIMM, to identify the failed DIMM. See
"Removing a DIMM" on page 48 and "Replacing a
DIMM" on page 49. If the beep code error remains
after you have replaced both DIMMs, go to step 4c.
e. Repeat steps 3b through 3d until you have checked all
memory banks.
4. Replace the following components one at a time, in the
order shown, restarting the server each time:
a. DIMMs, see "Removing a DIMM" on page 48 and
"Replacing a DIMM" on page 49.
b. Microprocessor/memory card 4, 3, 2; then, 1. See
"Removing a microprocessor/memory card" on page
51 and "Replacing a microprocessor/memory card" on
page 51.
c. (Trained service technician only) I/O board, see
"Removing the I/O board assembly" on page 68 and
"Replacing the I/O board assembly" on page 69.
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