HP PROLIANT 8500 Troubleshooting Manual page 5

ProLiant 8500 Pentium III Xeon
Power Up failure Flowchart
(1)
Did
No
Power
Supply
Turn On ?
Yes
(5)
Do you have
Yes
video?
No
(6)
Is the IMD
No
ON?
Yes
(7)
Is there IMD Yes
activity?
No
(8)
Are all the No
Voltage
Indicator
LEDs ON?
Yes
(2)
Are the Power
Supply LEDs in the
"Standby Mode" ?
Yes
No
(3)
Is the
AUX 5v LED
(on the
I/O pcb) or
IMD ON
Yes
?
1)
Follow
post
messages
1) Check the LCD cable connection
to Media Bay (header E9)
1) Determine action based on
messages and/or POST progress.
1) Check system I/O board power LEDs
2) Reseat Memory board
1) Check for VRM faults.
2) Check VRM, Processor and
terminator seating.
1) Check Power
No
Supply
LED table
1) Check Power Supply insertion.
No
Are the
(4)
Interlock
LED' s in the
"Normal"
state (off) ?
Yes
1) Check Power Switch and Power Switch
cable connected to Media Bay (header E8)
2) Reseat Memory board
3) Check Power Supply insertion.
4) Check for bent or missing pins on the
1) Check the
Interlock
LED table
power supply connector.
5