crwdns2944351:0crwdnd2944351:0iMac Intel 27" EMC 2639 Heat Sink Replacementcrwdnd2944351:0crwdne2944351:0

crwdns2866306:0crwdne2866306:0	iMac Intel 27" EMC 2639
Type	replacement
Thing	Heat Sink
Title	iMac Intel 27" EMC 2639 Heat Sink Replacement
Introduction	The GPU and CPU share a heat sink and exhaust vent. Use this guide to remove the entire unit from the logic board. Don't forget to apply a new layer of thermal compound before reassembling your iMac. Follow our [guide|744|thermal paste guide] for instructions on cleaning and preparing the thermal surfaces and applying a new layer of thermal compound onto the CPU and GPU dies. '''Before beginning any work on your iMac:''' Unplug the computer and press and hold the power button for ten seconds to discharge the power supply's capacitors. '''Be very careful''' not to touch the capacitor leads or any exposed solder joints on the back of the power supply. Only handle the board by the edges.
Time Required Min	crwdns2931273:0crwdne2931273:0
Time Required Max	crwdns2931273:0crwdne2931273:0
Imageid	crwdns2933769:0crwdne2933769:0 crwdns2933771:0crwdne2933771:0
Difficulty	Moderate
Conclusion	To reassemble your device, follow these instructions in reverse order.
Author	Walter Galan
Public	crwdns2853046:0crwdne2853046:0

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• crwdns2933811:02crwdnd2933811:0emptycrwdnd2933811:0iMac Intel 27" EMC 2546 Left Speaker Replacementcrwdne2933811:0
• crwdns2933811:03crwdnd2933811:0emptycrwdnd2933811:0iMac Intel 27" EMC 2546 Hard Drivecrwdne2933811:0
• crwdns2933811:04crwdnd2933811:0emptycrwdnd2933811:0iMac Intel 27" EMC 2546 Power Supply Replacementcrwdne2933811:0
• crwdns2933811:05crwdnd2933811:0emptycrwdnd2933811:0iMac Intel 27" EMC 2546 Right Speaker Replacementcrwdne2933811:0
• crwdns2933811:06crwdnd2933811:0emptycrwdnd2933811:0iMac Intel 27" EMC 2546 Fan Replacementcrwdne2933811:0
• crwdns2933811:07crwdnd2933811:0emptycrwdnd2933811:0iMac Intel 27" EMC 2546 Logic Board Assembly Replacementcrwdne2933811:0
• crwdns2933811:08crwdnd2933811:0emptycrwdnd2933811:0iMac Intel 27" EMC 2546 Heat Sink Replacementcrwdne2933811:0
• crwdns2933811:09crwdnd2933811:0emptycrwdnd2933811:0iMac Intel 27" EMC 2546 Heat Sink Replacementcrwdne2933811:0

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