IBM LS21 - BladeCenter - 7971, Service Manual

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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, Types 7971 and 7972,” on page 59 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 Description Action
3-1-4 Time-of-day clock failed.
1. Reseat the battery.
2. Replace the following components one at a
time, in the order shown, restarting the
blade server each time:
a. Battery
b. (Trained service technician only) System
board assembly
3-3-2 I2C error occurred.
1. Power down the blade server and reseat it
in the BladeCenter unit.
2. Reseat the following components:
a. DIMMs
b. MPE unit (if one is installed)
3. Replace the following components one at a
time, in the order shown, restarting the
blade server each time:
a. DIMMs
b. (Trained service technician only) System
board assembly
3-3-3 No operational memory in system. Important: In some memory configurations,
the 3-3-3 beep code might sound during POST
followed by a blank display screen. If this
occurs and the Boot Fail Count feature in the
Start Options of the Configuration/Setup Utility
program is set to Enabled (its default setting),
you must restart the blade server three times to
force the system BIOS to reset the memory
connector or bank of connectors from Disabled
to Enabled.
1. Install or reseat DIMMs and restart the
blade server three times .
2. Replace the following components one at a
time, in the order shown, restarting the
blade server each time:
a. DIMMs
b. (Trained service technician only) System
board assembly
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BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide