Apple iMac 27" Mid 2010 Logic Board 820-2901 661-5530 661-5531 CPU NOT INCLUDED

Notify me when this product is available:

Replacement Logic Board for the Mid 2010 27" iMac.  This Board is used in all configurations the Mid 2010 iMac.

This Logic Board does not include a Cpu.

Compatible Processors are shown bellow.

Intel ClarkDale Socket H - LGA 1156

Core i3-540 3.06 GHz

Core i3-550 3.2 GHz

Core i5-680 3.6 GHz

Core i5-760 2.8 GHz

Core i7-870 2.93 GHz

27" Apple iMac Aluminum (Thick Edge) Mid 2010


iMac 11,3 A1312 - 2390 

Model Numbers




Processor and memory

  • 3.06GHz Intel Core i3 processor with 4MB level 3 cache; supports Hyper-Threading
  • 3.2GHz Intel Core i3 processor with 4MB level 3 cache; supports Hyper-Threading
  • 3.6GHz Intel Core i5 processor with 4MB level 3 cache; supports Hyper-Threading and Turbo Boost

1333MHz DDR3 SDRAM; four available SO-DIMM slots support each supports 4GB of ram for a total up to 16GB

Connections and expansion

  • One FireWire 800 port; 7 watts
  • Four USB 2.0 ports


  • 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)

Graphics and video support

  • ATI Radeon HD 5670 with 512MB of GDDR5 memory (not included)
  • ATI Radeon HD 5750 with 1GB of GDDR5 memory (not included)
  • Mini DisplayPort output with support for DVI, VGA, and dual-link DVI (adapters sold separately)
  • Support for extended desktop and video mirroring modes
  • Simultaneously supports full native resolution on the built-in display and up to a 30-inch display (2560 by 1600 pixels) on an external display

All our products are covered by our own 60 day warranty.  If a problem arises we want to work through the situation with you.  Happy customers are the way we continue to grow and we are here to help.

Our Process 

  • Identify the problem by assisting with a diagnoses and trouble shooting.
  • Determine the best way to resolve the issue.  Our preferred method is to replace the defective item whenever possible.
  • We do ask to share the cost of shipping, we will pay for outbound shipping and ask our customers to cover inbound shipping costs
  • If we cannot send a replacement we will issue a refund for the original purchase price less any shipping costs.