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hydrive1902

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laptop GPU overheating- question about copper shim plates installed between GPU and heat sync

Hi I purchased a cheap laptop on ebay, it was an HP DV9000 series. I know they have a common problem where they overheat but I have had good luck with them and I got it for a very low price so I decided to buy it. The seller also noted it had a copper heat sync shim installed to keep it running cooler. The laptop was delivered and I inspected the circuit board and I found that it was not 1 single shim installed but two shims were installed one on top of the other, with heat sync compound in between the two copper shims.

Each copper shim is 0.55 mm thick (1.10 mm with both of them on top of eachother).

My question is would it be better to install these copper shims back (using a good heat sync paste) and should I put the paste in the middle of the two copper shims like it was when I purchased it? Or should I order 1 thicker copper shim (1.1 mm thick)?  In other words what is the proper way to do it?
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hydrive1902

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Thanks for the info. I decided to not install the copper shim I just used some good thermal paste and I have ran the laptop for 12 + hours and it is still running fine and shows no signs of overheating.

The shim was larger then the GPU but it does look like the seller tried to take a short cut by using 2 shims rather then using the right thickness one. But it is ok because it appears no shim is needed, as nobus mentioned.

Also I got it very cheap, so I cant complain too much because I got it for $80 (USD)  and that includes shipping. It also came with an extra working LCD. Just the LCD alone sells for $50 (17" LCD). I know that because I had to replace my original a few months ago (I use the same model computer - dv9000 series for my own personal computer).

thanks for the info everyon!
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