Thermal Pad - Correct thickness

Hops
Hops Member Posts: 2 New User
edited November 2023 in 2020 Archives
Hi all,

New member here.

My heatsink connects to both the CPU & what must be the gpu. At the CPU surface - thermal past is used, but a the GPU end acer used a thermal pad.

I want to renew the paste - but I also want to renew the pad.

How can I find out the original part number for the pad. I want to buy a replacement - but I need to know ow thick the replacement pad needs to be.

Is there anyone out there that can help me find out the original specifications for this pad??

My sincere thanks to any willing to contribute

Acer Aspire 5633WLMI

Answers

  • JackE
    JackE ACE Posts: 44,904 Trailblazer
    Unless the CPU is experiencing overheating symptoms like unexpected shutdowns or throttling behavior, repasting is not recommended. Heatsink pads are usually cut from 0.5mm thick silicone sheet.  Jack E/NJ

    Jack E/NJ

  • Hops
    Hops Member Posts: 2 New User
    Hi JackE,

    The laptop is experiencing the symptoms you detail. The paste on the CPU is in need of renewal.

    I need the communities help to identify the original specs (specifically) of the thermal pad on the GPU.

    I don’t want to guess.

    If there is anyone out there that can help me verify how thick the pad needs to be - I’d be most grateful.

    Laptop is old - (released with Vista). But 10 years later - i’m happily running windows 8.1 pro on it & using it to apply for jobs etc. It’s built like a brick!

    Hoping the community can help.

    Hops


  • JackE
    JackE ACE Posts: 44,904 Trailblazer
    It's unlikely you will get much more info since specsheets usually don't go into that level of detail expecially for older machines and non-gaming laptops.  In general, the factory pastes of that vintage are inferior to and dry out quicker than newer generation pastes like Kryonaut or Arctic MX4 which many folks with gaming laptops seem to turn to when throttling occurs. Furthermore, not all machines use pads so if you don't find any you shouldn't be trying to use one. I can only give you general guidelines to use pads on the order 0.5mm thick. Jack E/NJ

    Jack E/NJ