Reply To: [SOLVED]: Does your CPU temperature reach 90°C or above?

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#60941
ModdIt
Member

    Hi Rayluo,
    Before starting work check if your fan is pushing any air out of the cooling grills at rear left side, without the keyboard you can not start
    the system to check if the fan is running. At start my fan is inaudible but a couple of minutes after boot plenty of air gets pushed out of
    the vents.
    The junction to the cpu is not the place you need to clean. that is after the fan which sits at the left side in front of the case vents,
    it is a exchanger and consists of a finned copper block connected to CPU GPU with heat pipes, on top of CPU and GPU are copper pick
    heat in to the heat pipe system.
    To access it, the heat exchange block that is, you will have to remove top casing not just keyboard. If the cooler is clean and fan working,
    maybe a sensor issue. Change board battery and do a bios reset, try again. It is a bit of work but many other laptops are way worse to work on.
    You have a pro device which is designed for quick and easy work.

    On youtube searching Lenovo ThinkPad T430 – fan and heatsink cleaning or fan problems will give you some better idea of how to dissasemble check
    and and replace if neccesary.

    If you break the bond CPU GPU you need thermal paste, be very careful should you wish to do so, warm up the heat sinks with a hair dryer to a point
    where touching feels pretty warm, that is about softening the paste which can stick like glue. I use arctic silver paste for replacement.
    Be extremely careful when cleaning off old paste, it is conductive so if you get it over board connections you can kill the laptop.
    Maintenance manual should be easy to find, probably still on OEM site.
    Use an old check card, opening tool or similar to remove palm rest, not as some persons on tube do levering with a screwdriver, that usually leaves case
    damage..

    • This reply was modified 5 years, 3 months ago by ModdIt.