User Guide

Mac mini (Mid 2010) Symptom Charts — Startup and Power 27
2010-08-03
5. Verify if a thermal sensor or
fan failure is reported by latest
available service diagnostics.
Yes - If a fan failure is reported,
check for fan cable seating
and retest. If same failure
happens when retesting,
replace fan with known-good
one and retest. If issue does
not happen anymore with
the known-good fan, replace
user’s fan.
- If a thermal failure is
reported, check for cause of
excessive temperature, (like
clogged fan, disconnected
sensor cable, obstructed
vent, dust in heatsink n) and
retest. If still failing locate
aected sensor and replace
it if available as a standalone
part, or replace part where
sensor is integrated (logic
board, power supply,
heatsink) according to the
sensor location table . Go to
step 6
X22
X03
M23
P17
X10
No Replace Thermal module
Go to step 6
X10
6. Isolate if issue solved.
Verify if shutdown/issue does
not happen anymore after part
exchange.
Yes Issue xed
No Replace logic board with
corresponding symptom:
-if for thermal error cause
-if for other cause
M18
M08