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

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What is this iMac component

The computer is an iMac 8,1 2201 Early 2008, HDD has been replaced with a SSD awhile ago.

Recently the GPU die temperature has jumped up for no reason. I usually pay attention to the CPU temperature, not the GPU so not sure exactly how much it has jumped up, but it's about 10 - 20 degrees Celsius, now hovering at about 80 degrees Celsius.

This is normal day to day use, no games or heavy resource use software, and it just went up for no reason. I opened up and cleaned it because it was quite dusty and gained about 5 degrees, but it's still around 80.

What I noticed after I opened it is that all the parts had cooled down, including the GPU, except this component that is next to the SSD and on top of the GPU.

It could be this component that it's the culprit and not the GPU so I was wondering what it is. I have attached a picture in which you can see the SSD and this component.

Maybe you could help me identify it.

Block Image

Thanks


Answered! View the answer I have this problem too

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That’s the power supply unit.

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2 Comments:

Right, so if my GPU Die suddenly is 15-20 Celsius hotter during normal use, but everything else is fine, what could this mean ?

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Your systems thermal paste on the CPU & GPU needs refreshing. You'll need to take the logic board out clean off the old paste and apply fresh paste. iMac Intel 21.5" EMC 2389 Logic Board Replacement

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Andrei will be eternally grateful.
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