Power Supply Tests

Test

Estimated completion time

Description

Good

1 second

Checks if the power supply’s

 

 

good bit is set. If it’s not set, this

 

 

could indicate that the power

 

 

supply isn’t seated well or is bad,

 

 

or that there’s no AC connected.

 

 

 

Processor Tests

Test

Estimated completion time

Description

L1 Cache Test

3 seconds

Verifies that the L1 cache is

 

 

good on all processor cores.

 

 

 

Sensor Tests

When Server Diagnostics EFI starts, it performs a hardware existence test. Sensors found during this test can be tested individually using sensor tests.

Test

Estimated completion time

Description

Sensor Reads

1 second

Verifies that the sensor reads are

 

 

within the preset sensor limits.

 

 

 

SMC PID Sensor Tests

The System Management Controller (SMC) monitors the Proportional Integral Derivative (PID) controller which controls several important temperature sensors.

Test

Estimated completion time

Description

SMC PID Sensor

1 second

Verifies that the sensor reads

 

 

controlled by the PID are within

 

 

the preset sensor limits.

 

 

 

USB Tests

Connect USB devices before running USB tests.

Test

Estimated completion time

Description

Presence

1 second

Verifies that a USB device is

 

 

connected.

 

 

 

Appendix    Server Diagnostics Test Reference

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Apple 3X108 manual Power Supply Tests, Processor Tests, SMC PID Sensor Tests, USB Tests