NEC Express 120Mf Service Manual page 28

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4-4 Troubleshooting
On-screen error message
0B75 System Voltage out of
the range.
0B78 The error occurred
during fan sensor
reading.
0B7C The error occurred
during redundant
power module
confirmation.
0B7D The normal operation
can't be guaranteed
with use of only one
PSU.
0B80 BMC Memory Test
Failed.
0B81 BMC Firmware Code
Area CRC check
failed.
0B82 BMC core hardware
failure.
0B83 BMC IBF or OBF
check failed.
0B8A BMC SEL area full.
0B8B BMC progress check
timeout.
0B8C BMC command
access failed.
0B8D Could not redirect the
console - BMC Busy -
0B8E Could not redirect the
console - BMC Error -
0B8F Could not redirect the
console - BMC
Parameter Error -
0B90 BMC Platform
Information Area
corrupted.
0B91 BMC update firmware
corrupted.
0B92 Internal Use Area of
BMC FRU corrupted
0B93 BMC SDR Repository
empty.
Description
A system voltage error
was detected.
An error was detected
during fan sensor
reading.
The error was detected
while having constituted
the redundant power
supply.
Basic power supply
composition required
for this equipment is not
filled.
A BMC device (chip)
failure
Access to the BMC
address failed.
An opening is not in the
capacity of SEL.
BMC check was
interrupted temporarily.
BMC command access
failed.
Console redirection
cannot be carried out
(BMC Busy)
Console redirection
cannot be carried out
(BMC error)
Console redirection
cannot be carried out
(BMC Parameter error)
A BMC device (chip)
failure
An error of the SROM
that stores the chassis
information
A BMC device (chip)
failure
Cause
1. SMBus Device
failed
2. SMBus Cable
failed
1. SMBus Device
failed
2. SMBus Cable
failed
Power supply error
BMC failed
BMC failed
1. SROM failed
2. BMC failed
BMC failed
Action
internal cables
3. Replace internal cables
4. Replace boards
1. Turn off AC
2. Check cable
3. Replace Motherboard
Replace a power supply
1. Turn off AC and re-start
2. Replace Motherboard
1. Turn off AC and re-start
2. Replace Motherboard

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