Monday, 6 June 2011

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Troubleshooting , Repairing and Cracking Open the 27" Apple iMac



27" Apple iMac teardown (Model: A1312)

In 2011, Apple updated the iMac line with Intel's second-generation Core CPU family and AMD's new Radeon HD 6000-series graphics processors. Apple also replaced the old Mini DisplayPort input with a Thunderbolt port.
In March, I took a look inside the HP Compaq 6000 Pro All-in-one Business PC and couldn't wait to see how the new iMac compared. Follow along as I crack open the 27" Apple iMac (2011).


 The 27" Apple iMac weighs a hefty 30.5 pounds and measures 25.6" (W) x 8.15" (D) x 20.4" (H).


Removing the SDRAM compartment screws

Lifting off the SDRAM compartment cover

Pulling up on the SDRAM chip release tabs

Removing one of the two 2GB SDRAM chips

SDRAM chips removed

Elpida 2GB PC3-10600S9-10-F1 SDRAM chips

Separating the front panel from the case

The iMac's from panel is held in place with strong magnets. Using a thin plastic spudger, I separated the magnets attached to the panel from their counterparts mounted to the aluminum case.

Removing the front panel

Front panel

Removing the LCD assembly screws

Prying the LCD assembly away from the case

Removing the LCD assembly from the case

LCD assembly wires

Disconnecting the LCD assembly wires and cables

 

LCD assembly removed

LCD assembly - Back

 

 

First look at the internal hardware

Removing the hard drive bracket screws

Removing the hard drive

Hard drive removed

1T Seagate Barracude 7200 RPM hard drive

Removing the optical drive bracket srews

Removing the optical drive

Optical drive removed

Sony Optiarc DVD/CD Rewritable Drive AD-5680H

 

Removing the wireless card

Disconnecting the wireless card antenna wires

Atheros (Qualcomm) AR5BXB112 wireless card

Atheros (Qualcomm) AR9388-AL1A chip

Atheros (Qualcomm) AR5BXB112 wireless card - Back

Removing the SDXC card slot PCB screw

Removing the SDXC card slot PCB

SDXC card slot PCB - Front

SDXC card slot - Back



Power supply unit removed

Power supply

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Removing the LED driver board screws

LED driver board removed

Removing the right-side cooling fan screws

Disconnecting the right-side cooling fan wire

Right-side cooling fan

Ready to begin removing the motherboard

Disconnecting the motherboard cables

Removing the motherboard and cooling assembly screws

Removing the motherboard

Motherboard removed

Case with most internal hardware removed

Center cooling fan

FaceTime HD camera

Left-side cooling fan and speaker

Right-side speaker

 

Delta Electronics EMI filter

Broadcom BCM92046MD Bluetooth module

Motherboard with cooling assemblies attached - Top

Motherboard with cooling assemblies attached - Back

Disconnecting the remaining motherboard cables

Disconnecting the GPU cooling assembly's thermal sensor wire

Removing the GPU cooling assembly screws

Removing the GPU cooling assembly bracket screw

 Removing the GPU cooling assembly

GPU cooling assembly - Bottom

GPU cooling assembly - Top

Removing the GPU board screws

Removing the GPU card

AMD RadeonHD 6770M GPU - Top

 

Removing the CPU cooling assembly screws

 

Removing the CPU cooling assembly

Removing the GPU cooling assembly bracket

Intel Platform Controller Hub heat sink attached to motherboard

Intel Platform Controller Hub heat sink removed

Removing the IR receiver board

IR receiver board

 

Another heat sink

 

Removing the CPU bracket

CPU bracket removed

Removing the last CPU cooling assembly bracket screw

Removing the CPU

Motherboard - Top

Broadcom BCM57765B0KMLG Integrated Gigabit Ethernet and Memory Card Reader Controller

Cirrus 4206BCNZ audio controller

LSI FW643E PCI Express 1394b Link / PHY Open Host Controller Interface

Two SMSC USX2061 USB controllers

 


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