27" iMac A1312 MC813LL/A Mid 2011 Logic Board 820-2828 639-2289 CPU NOT INCLUDED

Replacement Logic Board for the 27" Apple iMac A1312 Mid 2011

Part Numbers 820-2828 639-2289

This Logic Board was used in all configurations of 27" Mid 2011 iMacs.

CPU is Not Included

Compatibility

Apple 27" iMac Mid 2011 

Identifiers: Mid 2011 - iMac 12,2 - A1312-2429

Model Numbers

MC813LL/A

MC814LL/A

MD063LL/A

Specs

CPU

Socket LGA1155

supported CPU's i5-2500s i5-2400 i7-2600

Memory

4 available slots utilizing 1333MHz DDR3 memory

Graphics Options

• AMD Radeon HD 6770M graphics processor with 512MB of GDDR5 memory
• AMD Radeon HD 6970M graphics processor with 1GB of GDDR5 memory
• AMD Radeon HD 6970M graphics processor with 2GB of GDDR5 memory

Video Support and Camera

• FaceTime HD camera
• 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
• Support for extended desktop and video mirroring modes

Connections and Expansion

• Two Thunderbolt ports
• Mini DisplayPort output with support for DVI, VGA, and dual-link DVI (adapters sold separately)
• One FireWire 800 port; 7 watts
• Four USB 2.0 ports
• SDXC card slot
• Slot-loading 8x SuperDrive with 4x double-layer burning (DVD±R DL/DVD±RW/CD-RW)
• Audio in/out
• 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
• IR receiver