Genuine Logic Board for the Late 2009 27" iMac.  

This Board is used in the Core i5 and i7 series of CPU

If you have a 2009 27" iMac with the Core 2 Duo series of CPU's you will need this Logic Board

This Logic board does not include a CPU

It can be used with:

Intel Core i series LynField - LGA 1156

2.66 GHz i5-750

  2.8 GHz i7-860

Compatibility

27" Apple iMac Aluminum (Thick Edge) Late 2009

Identifiers

iMac 11,1 A1312 - 2374 Late 2009

Model Numbers

MB953LL/A

MC507LL/A

Specs

Processor and memory

• 2.66GHz quad-core Intel Core i5 processor with 8MB shared L3 cache; Turbo Boost dynamic performance up to 3.2GHz
• 2.8GHz quad-core Intel Core i7 processor with 8MB shared L3 cache; Turbo Boost dynamic performance up to 3.46GHz; Hyper-Threading for up to eight virtual cores
• 1066MHz DDR3 SDRAM; four SO-DIMM slots support up to 16GB Total

Connections and expansion

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

Communications

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

Graphics and video support

• ATI Radeon HD 4850 graphics processor with the 512MB of GDDR3 memory
• Mini DisplayPort output port with support for DVI, VGA, and dual-link DVI (adapters sold separately). 27-inch models also support input from external DisplayPort sources (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.