Huawei E9000 Troubleshooting Manual page 102

Huawei Servers
Troubleshooting
Fault
Symptom
The
memory
capacity
detected
by the
system is
less than
the
configure
d memory
capacity.
Issue 20 (2020-09-25)
Handling Procedure
1. Check whether the memory is
included in Computing
Product Compatibility
Checker.
● If yes, go to 2.
● If no, replace the memory
with a component listed in
Computing Product
Compatibility
2. Check whether memory
mirroring has been enabled in
the BIOS.
● If yes, the memory capacity
is reduced by 50% due to
the memory mirroring
function. You can disable
the function in the BIOS. If
the problem persists, go to
3.
● If no, go to 3.
3. Check whether the DIMM
installation positions meet
configuration rules.
● If yes, go to 4.
● If no, reinstall the DIMMs in
correct slots according to
the configuration rules.
4. Check whether a "DIMMxxx
configuration error" alarm is
generated by iBMC.
● If yes, replace the faulty
DIMM. For details, see
Handling Alarms.
● If no, go to 5.
5. Check whether any DIMM
slots are abnormal. If a DIMM
slot is abnormal, replace the
mainboard.
Copyright © Huawei Technologies Co., Ltd.
5 Diagnosing and Rectifying Faults
Quick Recovery Method
1. If the iBMC generates the
"DIMMxxx Configuration
Error" alarm, replace the
related DIMM.
2. If the DIMM status
displayed in iBMC or the OS
is abnormal (unidentified or
faulty), replace the faulty
DIMMs.
Checker.
3. If memory mirroring or
memory rank sparing is
configured in the BIOS, the
total available memory
capacity is less than the
configured physical memory
capacity.
4. If the DIMMs do not meet
the DIMM configuration
rules, reinstall the DIMMs
by referring to
Product Memory
Configuration
5. If DIMM installation slots
are faulty, replace the
mainboard.
5.3
Computing
Assistant.
93