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모델 A1046 또는 A1095 / 1280x854 스크린 해상도

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Where to use thermal grease or thermal pad

I used the guide here to help me replace my dc-in sound board. It was great help in the disassembly but what i need to know is. Where is it safe to use thermal compound at or only use a thermal pad at. Reason i ask this is of all the used parts i seen on ebay. They all look like mine, you can see where. There is thermal compound used and to me what looks like a thermal pad. You can see from the pictures here i posted. On the board to the left is the processor which i plan on using arctic silver 5 for. Then in the middle not sure what its called. if someone can tell me it be greatly appreciated. It looks like a thermal pad was used. Can i use a thermal compound here. Then to the right on the Graphics you can see thermal compound was used. Plus you can see how they bridged the thermal compound in a X shape. To make complete contact in all the parts. Here i plan on using arctic mx-4 because its metal-free and non-electrically conductive. Which eliminates the risks of short circuit. Plus i also know there must be complete contact between the heat sink and parts with no gaps. Also since i got it all apart is there a way to check the fans. Other than using some wire and a battery.

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Every one that I've done has had paste on the CPU and a pad on the VGU(VGC). FWIW these were/are notorious for the VGU solder joints failing... in addition to the thermal pads shims were added to it on either side of the silver foil protecting the bottom of the logic board as a DIY "fix" to keep the VGU functioning for months/years after fractures started to cause video problems. I think the pad was/is essential to the design in trying to keep the solder from cold fracturing.

Good Luck

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Clean these with high percentage rubbing alcohol (95% or higher) and then apply thermal paste like so.

http://www.maximumpc.com/article/howtos/...

Hope this helps,

John H. Laney

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