Table 3. Power-supply LEDs
Power-supply LEDs
Description
AC power
DC power
Power error
Off
Off
Off
No AC power to the server or a problem
with the AC power source
Off
Off
On
No AC power to the server or a problem
with the AC power source and the power
supply has detected an internal problem
Off
On
Off
Faulty power supply
Off
On
On
Faulty power supply
On
Off
Off
Power supply not fully seated, faulty
system board, or faulty power supply
On
Off or flashing
On
Faulty power supply
On
On
Off
Normal operation
On
On
On
Power supply is faulty but still operational
14
IBM System x3400 M3 Types 7378 and 7379: Problem Determination and Service Guide
Summary of Contents for 7378
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Page 187: ...Chapter 5 Removing and replacing server components 169...
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Page 362: ...Part Number 00KC028 Printed in USA 1P P N 00KC028...