Model A1224 / Mid 2007 and Early 2008 / 2, 2.4, or 2.66 GHz Core 2 Duo processor

578 Questions View all

CPU Fans Running High, Top Left Of iMac Gets Hot

I have an Imac 20 inch, I took the 500 gb hard drive out of a 21.5 inch and replace the 320 gb hard drive. I personally think everything worked fine. Lately the fans are running at top speeds, on Istat the numbers are as follows.

CPU fan 1198 RPM

Hard Drive 1198 RPM

Optical Drive 5097 RPM

Hard drive 18 0c

CPU 24 0c

CPU 25 0c

GPU Heat Sink 31

GPU 27

Ambient 18

Airport 23

I'm just curious, do I need a sensor for the hard drive or I need replace my hard drive. Somtimes the computer might freeze up and too and i'll see the beach ball, but very rare though.

best regards


Answered! View the answer I have this problem too

Is this a good question?

Score -1
Add a comment
Spread Fixmas Cheer
Get $12 off your purchase of $50 or more with code FIXMAS12
Spread Fixmas Cheer
Get $12 off your purchase of $50 or more with code FIXMAS12

1 Answer

Chosen Solution

I'd rather think that something is amiss with the optical drive sensor. The revs for CPU and HDD are quite normal and shouldn't be audible providing the fans are in sound condition. You mentioned the top left of the computer heating up. That is where the power supply sits and higher themperatures there are normal.

Was this answer helpful?

Score 3
Add a comment

Add your answer

jasonConnors will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 0

All Time: 1,152