iMac (27-inch, Mid 2010) Symptom Charts — Startup and Power 51
2010-09-09
Burnt Smell/Odor
Unlikely cause: speakers, microphone, rear housing
Quick Check
Symptoms Quick Check
Burnt Smell/Odor
• Burning smell
• Unusual odor
1. Verify that computer is the source of the odor.
2. If system is new, see kBase #TA22044: New
Equipment: Odors May Be Present Short-Term.
3. Disconnect all third-party devices and check to
see if any external device is the source of odor.
4. Inspect air intake and air outlets for obstructions.
To prevent overheating make sure there
is sucient clearance to allow air to ow
unobstructed into and out of the system.
5. Verify if system is functional.
Deep Dive
Check Result Action Code
1. Verify if source of the odor
can be identied by visually
inspecting each module
and its associated cables for
signs of burned or damaged
components, smoke residue,
burned traces, or melted or
damaged wiring,
Yes Replace aected module(s).
Go to step 2
P08
No Unable to locate source of
odor. Go to step 3.
2. Disconnect all third-party
devices and cables. Power ON
system and verify if smoke or
strong odor returns.
Yes Power down system
immediately. Go to step 3.
No System functions correctly.
Verify system functionality
with third-party devices and
cables and return system
to user if problem has been
resolved. Consult third-party
companies as needed for
issues with those products.