Fan Tests
When Server Diagnostics Mac OS X starts, it performs a hardware existence test. All
fans found during this test can be tested individually using fan tests.
Test
Estimated completion time
Description
Verify Motor +/– 10%, 10 Reads
High, 20 Low
2 minutes
Verifies the minimum and
maximum fan speeds. Sets the
minimum and maximum builds
within 10% of the threshold and
then does 10 consecutive reads
at the maximum and 20 at the
minimum.
Verify Motor Automatically
+/– 15%
2 minutes
Verifies the minimum and
maximum fan speeds. Sets the
minimum and maximum builds
within 15% of the threshold.