The following illustrations show the LEDs on the processor board.

Front side

Power-good

Microprocessor 3

LED

error LED

VRM

 

error

 

LED

 

Microprocessor 3 power module error LED

Microprocessor 1 power module error LED

Microprocessor 1 error LED

Reverse side

Microprocessor 4 error LED

Microprocessor 4 power module error LED

Microprocessor 2 power module error LED

Microprocessor 2 error LED

Chapter 4. Installing options 83

Page 93
Image 93
IBM 8688 manual Following illustrations show the LEDs on the processor board