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254 posts

Ultimate Geek

#269726 4-Apr-2020 18:46
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Good evening all. 


I'm currently replacing the thermal paste on my partners laptop CPU. The laptop is a Toshiba Satellite c55-a-5100. It comes with integrated laptop graphics? (Mobile Intel® HM76 Express Chipset / Mobile Intel® HD graphics with shared graphics memory) but I noticed that the GPU does not have any thermal paste on it. GPU is circled bottom right of the image. The casing doesn't have any sort of heatsink/pad on it either for the GPU.


Is it okay to apply thermal paste to the GPU or best to leave it alone?   Thanks.   




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983 posts

Ultimate Geek

  #2454603 4-Apr-2020 19:16
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If the heatsink doesn't cover it, there is no point. Are you sure that's the GPU? iGPU is part of the CPU die, and a dedicated GPU will definitely have some form of cooling. I suspect that is probably the 'chipset' chip. 

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Ultimate Geek

  #2454607 4-Apr-2020 19:25
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True. Yeah I have no idea to be honest. Looking under the hood of a laptop is relatively new to me. 


A lot of heat comes out from that area when the computer is under heavy load and when I saw another chip,  I just guessed thatit may be the graphics. But considering the fact that it's integrated, your comment makes sense. 




983 posts

Ultimate Geek

  #2454610 4-Apr-2020 19:27
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Google the numbers on that chip, you'll soon find out what it is. 

254 posts

Ultimate Geek

  #2454613 4-Apr-2020 19:32
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Chipset that provides the following for the system:
A second generation DMI link between it and the CPU
8 PCI-E 2.0 lanes
2 SATA 6gbps ports
4 SATA 3gbps ports
4 USB 3.0 ports
8 USB 2.0 ports


Looks like I'll just do the CPU.


Thanks for your help 

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