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All display problems.
The system will not power on and no error codes are
available.
The power LEDs on the operator panel and the power supply
do not come on or stay on.
The power LEDs on the operator panel and the power supply
come on and stay on, but the system does not power on.
A rack or a rack-mounted unit will not power on.
The cooling fan(s) do not come on, or come on but do not
stay on.
The system attention LED on the operator panel is on and
there is no error code displayed.
An 888 sequence is displayed in the operator panel display.
The operator panel displays OK and the fans are off.
The operator panel displays STBY.
Power and Cooling Problems
888 Sequence in Operator Panel Display
Other Symptoms or Problems
1. If you are using the Hardware Management
Console, go to the Hardware Management
Console Maintenance Guide, order number
SA38-0603.
2. If you are using a graphics display:
a. Go to the problem determination procedures
for the display.
b. If you do not find a problem:
v Replace the display adapter, location:
U0.1-P1-In or U0.dd-P1-In.
v Replace the backplane in which the card is
plugged.
3. If using an ASCII terminal:
a. Make sure that the ASCII terminal is
connected to S1.
b. If problems persist, go to the problem
determination procedures for the terminal.
c. If you do not find a problem, replace the
service processor, location: U0.1-P1-X1. (See
notes on page 53).
Go to "MAP 1520: Power" on page 98.
1. Check the service processor error log.
2. Go to "MAP 1520: Power" on page 98.
1. Check the service processor error log.
2. Go to "MAP 1520: Power" on page 98.
1. Check the service processor error log.
2. Go to "MAP 1520: Power" on page 98.
1. Check the service processor error log.
2. Go to "MAP 1520: Power" on page 98.
1. Check the service processor error log.
2. Go to "MAP 1520: Power" on page 98.
Go to the Fast Path MAP in the RS/6000 Eserver
pSeries Diagnostic Information for Multiple Bus
Systems.
The service processor is ready. The system is waiting
for power-on. Boot the system. If the boot is
unsuccessful, and the system returns to the OK "MAP
1020: Problem Determination" on page 63.
The service processor is ready. The system was shut
down by the operating system and is still powered on.
This condition can be requested by a privileged
system user with no faults. See the service processor
error log for possible operating system fault
indications.
Chapter 3. Maintenance Analysis Procedures (MAPs)
59
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