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Rectangular metal power supply unit with silver finish and label showing model PA-2311-02A

Delta P

Delta P PA-2311-02A 310W power supply for 27" A1312

SKU CH-PFXG-4HSXZ

Replacement 310 W power supply for 27-inch A1312 iMacs, rated at 145 W maximum output

  • Maximum Power145 W
  • Fans0
  • ModularNo
  • Direct replacement for 27-inch A1312 iMac models
  • 145 W maximum power for stable system operation
  • Fanless design eliminates operational noise
  • Non-modular construction simplifies internal cabling
  • Compatible with multiple Apple part numbers including 614-0446

Replacement PSU for 27" A1312 iMacs

This Delta P unit is a direct replacement for the internal power supply in 27-inch A1312 iMac models. It matches the original PA-2311-02A part and compatible Apple service numbers including 614-0446 and 661-5310. The supply is intended for repair technicians or owners restoring a specific legacy all-in-one desktop.

Rated 310 W label with 145 W continuous output

The nameplate states 310 W while the specifications list a maximum power of 145 W. This headroom covers the logic board, display backlight and internal drives under normal desktop loads. Sustained heavy GPU compute or multiple high-draw peripherals may exceed the continuous rating.

Fanless design runs silently with no moving parts

Zero fans mean no audible noise and no dust ingestion over time. Heat is dissipated passively through the metal chassis inside the iMac enclosure. The unit draws only what the system requires, keeping overall power consumption low during typical use.

Points forts

  • Direct replacement for 27-inch A1312 iMac models
  • 145 W maximum power for stable system operation
  • Fanless design eliminates operational noise
  • Non-modular construction simplifies internal cabling
  • Compatible with multiple Apple part numbers including 614-0446

Caractéristiques

Maximum Power145 W
Fans0
ModularNo

Questions sur cet article

Will this PA-2311-02A unit power my 27 inch A1312 iMac alongside the original logic board without modification?

Yes, the PA-2311-02A is listed for all 27 inch A1312 models including MB952LL, MB953LL, MC507LL, MC510LL, MC511LL, MC784LL, MC813LL, MC814LL and MD063LL, matching the original 614-0446 and 661-5310 part numbers.

How can I confirm the 145 W maximum output is stable after installing this fanless supply in the 27 inch A1312?

Boot the iMac and monitor system temperatures and voltage rails using macOS built-in diagnostics or a hardware monitor; the unit should run silently with no fan and maintain steady rails under load up to the 145 W rating.

Does the box include the AC power cord and mounting screws for the 27 inch A1312, or must I source them separately?

The supplier description notes the unit is pulled from a working machine at about 90 percent new; only the PSU module itself is shown, so the original AC cord and case screws are not included and must be reused or purchased separately.

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