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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
3-3-3
No operational memory in system.
Two short
Information only, configuration has
beeps
changed.
Action
Important: In some memory configurations, the 3-3-3 beep
code might sound during POST, followed by a blank monitor
screen. If this occurs and the Boot Fail Count feature in the
Start Options of the Configuration/Setup Utility program is
enabled (its default setting), you must restart the server three
times to reset the configuration settings to the default
configuration (the memory connector or bank of connectors
enabled).
1. Install or reseat DIMMS and restart the server. See
"Removing a DIMM" on page 48 and "Replacing a DIMM"
on page 49.
2. Reseat the microprocessor/memory cards , see "Removing
a microprocessor/memory card" on page 51 and
"Replacing a microprocessor/memory card" on page
51.and restart the server.
3. 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.
Run the Configuration/Setup Utility program. See "Starting the
Configuration/Setup Utility program" on page 14
81
Chapter 5. Diagnostics
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