iMac Intel 21.5" EMC 2308 CPU Replacement
Replace the CPU in your iMac Intel 21.5".
- Author: Andrew Bookholt
- Difficulty: Very difficult
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Use this guide to upgrade your CPU.
Sections
- Access Door 1 step
- Glass Panel 2 steps
- Display 7 steps
- Power Supply 3 steps
- Optical Drive 4 steps
- Optical Drive Fan 3 steps
- Logic Board 14 steps
- Heat Sink 5 steps
- CPU Replacement 3 steps
- View:
- Paginated
- Full width
Edit Step 1
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Access Door
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Loosen the three Phillips screws securing the access door to the bottom edge of your iMac.
These screws will remain captive in the access door.
Remove the access door from your iMac.
During reassembly, fasten the access door loosely and align it with the pocket cut into the outer case of the iMac before fully tightening the screws.
Edit Step 2
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Glass Panel
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Before beginning, unplug your iMac and lay it on a soft surface as shown.
Stick a suction cup near each of the two top corners of the glass panel.
To attach the suction cups we sell, first position the suction cup with the movable handle parallel to the face of the glass panel. While lightly holding the suction cup against the glass, raise the movable handle until it is parallel with the other handle.
If your suction cups refuse to stick, try cleaning both the glass panel and the suction cup with a mild solvent.
Edit Step 3 ¶
Gently lift the glass panel perpendicular to the face of the LCD enough to clear the steel mounting pins attached along the underside of the top edge of the glass panel.
Pull the glass panel away from the lower edge of the iMac and carefully set it aside.
During reinstallation, be sure to meticulously clean the inside of the glass panel and the face of the LCD as any dust or fingerprints trapped inside will be annoyingly visible when the machine is turned on.
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