IBM BladeCenter HS20, Инструкция по установке и эксплуатации

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Table 3. Light path diagnostics panel LEDs
LED error Action
NMI Check error log for additional information. Restart the blade
server. If the error still exists, call for service.
MIS (microprocessor speed
mismatch)
Check microprocessors to make sure that they are the same
speed.
S BRD (system board) Restart the blade server. If the error still exists, call for
service.
TEMP (over temperature) Check the BladeCenter blowers for correct operation and
the air inlets for obstructions. Make sure that the
temperature of the room where the blade server is installed
is within the limits specified by the “Features and
specifications” on page 7.
Light path diagnostics LED
(CR111)
Lights to show that the light path diagnostics circuit is active
and functioning. Check the other light path diagnostic LEDs
for errors.
Light path diagnostics button
(SW4)
Press SW4 to find faults on the system board. If the
microprocessor or memory LED is lit, reseat the component.
If the LED remains lit, replace the defective component.
See “Diagnosing problems using light path diagnostics” on page 59 for information
on what action to take if there is a component error.
Chapter 2. Power, controls, jumpers, switches, and indicators
19