iMac GPU Repair
3-5 days
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iMac GPU repair
27-inch iMacs with discrete AMD Radeon Pro graphics suffer from a known GPU failure pattern - coloured lines, artifacts, banding, or 'no display' that fools owners into thinking the screen has died. We diagnose honestly: reflow if it's a fit, full GPU replacement if not.
Mohammed, iMac board-level and GPU repair

Quick answer
If your 27" iMac is showing coloured lines, banding, square artifacts, or refuses to display anything at all (but the fan and chime work) - the cause is usually the discrete AMD Radeon Pro GPU on the logic board. Apple soldered these GPUs directly to the board and they have a known failure rate, especially on heavily-used 2015 and 2017 iMacs.
We approach GPU repair honestly. Some failures are recoverable with a professional reflow on our infrared rework station - usually buying 6-18 months of life. Others need full GPU chip replacement, which is significantly more involved and expensive. Some are simply uneconomic to fix and the right answer is to redirect you to a Mac Studio or used 24" iMac instead. We assess for free, quote in writing, and never start work you don't approve.
Free GPU diagnostic
We confirm the fault is GPU (not display, not cable, not main logic): test on external monitor, swap in a known-good display, run thermal imaging on the GPU under load.
Reflow or replace decision
Cracked solder joints under the GPU package can sometimes be re-flowed. Worn-out silicon needs a chip swap. We tell you honestly which yours needs and what each costs.
Infrared rework
If reflow is appropriate, we use a controlled IR profile to re-flow the BGA joints. Followed by 24-hour stress test before reassembly.
Full chip replacement
If the silicon itself has failed, we de-solder the old GPU and re-ball with a tested replacement chip. Specialist work - done in-house, not outsourced.
Display refit and verify
Display reassembled with fresh adhesive, GPU stress-tested in Final Cut and 3D benchmarks for 24 hours before you collect.
3-5 days
iMac GPU Repair
Send the model and a photo of the issue. Free pickup across Dubai mainland, 180-day written warranty.
Mohammed
iMac board-level and GPU repair · 14 yrs
Marianne Chehade El Dfouni
26 Oct 2023
Best Service for IMAC upgrade, Top Home Service and Fast Response! Thank You 😁
Ali Hassan
17 Jan 2024
IT Repair turned my damaged iMac screen into a flawless display! Quick service, transparent pricing, and a like-new result. Highly satisfied with their expertise and efficiency. A reliable choice for tech repairs!
Binod Shrestha
6 Apr 2022
Perfect repair solution for MacBook and iMac in Dubai. The technicians are of highest quality.. very professional in...
Related reading: iMac Radeon Pro failure - symptoms, causes and what's fixable
From AED 800. Free pickup across Dubai mainland. 180-day written warranty.