HP 3000 9x9KS Service Manual page 51

Display Panel Message
PM POWER ERROR
+15V OUT OF SPEC
CPU MISMATCH
CPUs=XXXX PS=Y
PS MISMATCH
CPUs=XXXX PS=Y
FRONT FAN
POWER SHUTDOWN
REAR FAN
POWER SHUTDOWN
DC OVERVOLTAGE
SHUTDOWN +X.Y V
DC UNDERVOLTAGE
SHUTDOWN +X.Y V
DC OVERVOLTAGE
POWER SHUTDOWN
AMBIENT TEMP
POWER SHUTDOWN
INTERNAL TEMP
POWER SHUTDOWN
Table 3-4. Error Messages
Cause
1 +15V is not within specifications 1. Replace Power Supply
3 Installed CPUs are not of the
same type
3 Power Supply is not the correct
type for the installed CPUs
2 Front fan is dead or running too
slow
2 Rear fan is dead or running too
slow
2 An overvoltage condition has
been detected on the specified
D.C. voltage (+X.Y)
2 An undervoltage condition has
4 been detected on the specified
D.C. voltage (+X.Y)
2 An emergency overvoltage con-
dition has been detected
2 The ambient temp sensor has
detected temperature in excess of
43° C (109° F)
2 The internal temp sensor has
detected temperature in excess of
70° C (158° F)
Action
2. Replace PM card
1. See Note 3
1. See Note 3
1. Replace front fan
2. Replace PM card
3. Replace fan cables
1. Replace rear fan
2. Replace PM card
3. Replace fan cables
1. Replace Power Supply
2. Replace PM card
1. Replace Power Supply
2. Replace PM card
3. Refer to note 4
1. Replace Power Supply
2. Replace PM card
1. Check room temp.
2. Replace PM card
1. Correct cause of heat
2. Replace PM card
3. Replace System Board
Troubleshooting 3-7