IBM x iDataPlex dx340 Series Problem Determination And Service Manual page 68

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," on page 59 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.
System event log message
12 Volts
5 Volts Standby5 Volts
CMOS Battery
1,8 Volts
1.5/1.25 Volts
HD Driver 1
HdDriver 2
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System x iDataPlex dx340 Types 6385, 6386, 6389, 7831, 7832, and 7834: Problem Determination and Service Guide
Sensor
number
(Hex) Action
38 Check the BMC log of the lower server for a power supply failure
(Sensor94h).
Important: Sensor 94h will also report a loss of ac power which is
not commonly associated with a power supply failure.
If a power supply failure is logged, replace the power supply. If no
power supply failure is logged, disconnect all hard disk drives
backplanes to help isolate the failure. With the hard disk drive
backplanes disconnected, clear the BMC log. If the problem
remains, replace the following components in the order that they
are listed:
1. (Trained service technician only) System-board tray
2. (Trained service technician only) Power-supply paddle card
3. Power supply
3B
1. Replace the power supply.
2. (Trained service technician only) Replace the system-board
tray.
3. (Trained service technician only) Replace the power-supply
paddle card.
3C
1. Replace the 3 V battery.
2. (Trained service technician only) Replace the system-board
tray.
3D
1. Check the BMC log for a 5 V failure (Sensor 37h) and follow
the instructions for that error message.
2. (Trained service technician only) Replace the system-board
tray.
3E
1. Check the BMC log for a 5 V failure (Sensor 37h) and follow
the instructions for that error message.
2. (Trained service technician only) Replace the system-board
tray.
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1. Check the hard disk drive fault LED.
2. Check all cables and reseat the hard disk drives.
3. Replace the failing hard disk drive.
4. (Trained service technician only) If the problem remains,
replace the hard disk drive backplane.
69
1. Check the hard disk drive fault LED.
2. Check all cables and reseat the hard disk drives.
3. Replace the failing hard disk drive.
4. (Trained service technician only) If the problem remains,
replace the hard disk drive backplane.