0

Even after dissembling my laptop and cleaning it, the temp of my CPU and Motherboard hangs around 41+ degrees Celsius while idle and no apps running. It used to be much lower and my laptop gets really hot. My battery life also deteriorated. Average battery life went from 8 hours to 5 hours.

What could be the problem? I'm not good with hardware

8
  • If battery live decreased since cleaning then it is likely using more power and thus getting hotter. That would make the problem be 'somehow it uses more power after maintenance'. I am not sure what would cause that though, assuming only hardware maintenance was done and nothing was changed in software.
    – Hennes
    Jun 14, 2015 at 12:01
  • I tried reinstalling Windows 8 after cleaning but that didn't help. I even tried Ubuntu but my temperature in while running Linux increased even more to 60 degrees Celsius. I'm guessing it's a BIOS error (I did reset all settings there) or it could be my charger. I am not sure
    – Zun
    Jun 14, 2015 at 12:04
  • Is there a 'high performance' setting in the BIOS? Does the laptop have a discreet GPU and a GPU buildinto the APU/CPU? Is that set to 'aways use discrete graphics' ? Etc etc.
    – Hennes
    Jun 14, 2015 at 12:10
  • I've tried forcing integrated graphics card but there is no difference, and no I couldn't find a high performance setting. Thanks for the help. I'm looking if I can update the BIOS.
    – Zun
    Jun 14, 2015 at 12:12
  • There is a possibility for using more power on a laptop after cleaning, if the cpu did not throttle as much as it did before (just saying). A laptop doesnt get really hot until your doing something with it, you did not even indicate what your doing with it? (or if something is using cpu behind the scenes) . Did you refresh the thermal paste when you dissasembled cleaned it? Moving heat sink stuff or even bumping it, when there is crusty old thermal goop under there , wouldnt improve it.
    – Psycogeek
    Jun 14, 2015 at 12:21

1 Answer 1

1

While you were dissembling your laptop, Did you remove heat sinks then clean old one and put new Thermal Grease? If not!?, be sure you do it in right way! (Do not put too much of it! just check youtube videos)

Also be sure your cooler fans work properly. You can use any Free Hardware monitoring programs. (like: Open Hardware Monitor or 'SpeedFan' or Aida64 ...) Then make stress on your processor and watch fan speed reaction to processor heat!? (Aida64 have some stress functions to test hardware's)

General Rule: If you have your laptop for a long time or use it anywhere you go!? And If while you were cleaning it, you found out too many dust inside it, It will be a good idea to change all Thermal Grease under heat sinks. (This rule, even applies on Desktops too! Base on work area conditions, Cleaning Fans and Changing Thermal Grease after 6 months or 1 year.) Also sometimes we have to replace some fans too! Cleaning fans also have its own technique, The safest way to clean it is to use Blower on it. But if you gonna use brush on it make sure you know how to do it.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .