Signs your iMac 27-inch A1312 (2009–2011) needs this repair
- No picture on the monitor
- Lines, blocks or random colours
- Crashes during games or video
- Driver errors or black screens
- Fans running at full speed
- Artefacts that get worse as it warms up
How we fix it
We test with a known working display and card to confirm the graphics card is at fault.
We repair or replace the card, clean the cooling, and test under load.
How long it takes
Graphics repairs are usually done within one to three working days, depending on parts.
Good to know: Keep the case clean inside. Dust on the graphics card fans is a common cause of overheating.
Questions
Can you upgrade my graphics card?
Yes, where the power supply and case allow. We'll recommend a card for your iMac 27-inch A1312 (2009–2011).
Is it the card or the monitor?
We test both to find out.