iMac M3 / M4 Repair — All-in-One Apple Silicon Specialist

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The 24-inch iMac with M3 (2023) and M4 (2024) is Apple’s current all-in-one desktop — 4.5K Liquid Retina display, M3 or M4 SoC, 8GB or 16GB unified memory minimum, magnetically-attached MagSafe power, optional Touch ID Magic Keyboard. Available in seven anodized aluminium colours. AIO design means screen + computer + speakers are integrated; repair involves working on the whole unit.

iMac M3 / M4 service notes: the unibody chassis requires careful disassembly — the 4.5K panel is bonded to the chassis and must be removed before logic-board work. Power supply is internal (no power brick). Most failures we see: USB-C / Thunderbolt port wear from dock cycling, panel issues (yellowing or dead pixels after 24+ months), and PSU faults on early M3 units.

Get your iMac M3 / M4 Repair today
No-fix-no-fee diagnostic. Onsite or workshop. 90-day warranty on every repair.

Models We Service

Every generation we currently service:

ModelYearCommon faultsService status
iMac 24″ M4 (2024)4.5K 4480×2520 Liquid RetinaM4 8-core CPU / 8c or 10c GPU16/24/32 GB unified143W internal PSU
iMac 24″ M3 (2023)4.5K 4480×2520 Liquid RetinaM3 8-core CPU / 8c or 10c GPU8/16/24 GB unified143W internal PSU

Common Issues & How We Fix Them

Our Repair Process

  1. Free quote.
  2. Drop-off, onsite (software) or insured courier.
  3. Data image safety net.
  4. Workshop turnaround 1-3 days typical.
  5. 90-day warranty.
Ready to start today
No-fix-no-fee diagnostic. Onsite or workshop. 90-day warranty on every repair.

Frequently Asked Questions

Where in the iMac chassis is the PSU?

Built into the base of the unit — no external power brick. PSU failures (no power, intermittent power) require internal access via screen removal. $480-$680 fitted including new PSU module.

4.5K Liquid Retina panel replacement cost?

$2,200-$2,800 fitted. The 4.5K panel is bonded to the chassis with adhesive strips and requires a heated panel-removal tool. 5-7 day workshop turnaround as the panel is special-order.

iMac M3 won't turn on — what to try first?

Unplug power cable. Wait 30 seconds. Press and hold power for 10 seconds. Reconnect power. Press power once. If still no response, likely PSU or logic board — bring it in. Diagnostic free.

Can I upgrade RAM on M3 / M4 iMac?

No. Memory is part of the SoC package. Configure correctly at purchase. We can replace the whole logic board with a higher-spec one if needed, but that’s $1,400-$2,200 — usually not worth it vs buying new.

USB-C port wear on M3 iMac — common?

The iMac’s two TB / USB-4 ports get heavy use for monitor / dock / accessory connections. Pin wear shows around year 3. Port replacement (daughterboard) is $380-$520 fitted.

Book your Surface repair today
No-fix-no-fee diagnostic. Onsite or workshop. 90-day warranty on every repair.

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