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KHACHIMO 500W PSU board for 27 inch iMac A1862

KHACHIMO

KHACHIMO Original PSU Board iMac 27" A1862 500W APG003 ADP-500AF T

SKU CH-C0PN-YSE0A

Replacement 500 W power supply board for 27-inch iMac A1862 with 80 PLUS Gold efficiency and silent Zero RPM fan mode

  • Product typeATX
  • Modern Standby gives near-instant wake from sleep
  • 80 PLUS Gold certification lowers power draw and heat
  • Zero RPM fan mode stops the fan at light loads
  • Resonant LLC with DC-to-DC conversion delivers clean power and cuts coil whine
  • 500 W ATX unit built for iMac 27" A1862

Direct Replacement Board

The KHACHIMO power-supply board is built as a direct replacement for the 27-inch iMac A1862 all-in-one. It restores 500 W of regulated power to a system that has lost its original supply through age or failure.

Upgrade From Failed Unit

Swapping in this board replaces a faulty or degraded original supply and brings modern standby support, 80 PLUS Gold efficiency and a zero-RPM fan mode that the old unit lacked. The jump is worth it when the Mac will not power on, shuts down under load or exhibits coil whine from worn components.

Straightforward Swap

Installation follows the standard iMac teardown: remove the display, disconnect the old board and fit the new one using the original mounting points and connectors. The main risk is damaging the display adhesive or ribbon cables during disassembly, so work slowly and keep track of screw lengths.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $195.99
Pricier than about 62% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Will this 500W board fit my iMac 27" A1862?

Yes, it is built specifically for the 27-inch A1862 all-in-one chassis.

What is the common mistake when installing this PSU board?

Forgetting to reconnect the thermal-sensor cable before sealing the display assembly.

When will the fan need cleaning or replacement?

The Zero RPM mode keeps the fan off at low load, so dust builds slowly; clean it during any future logic-board service.

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