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CPU overheating...

Discussion in 'Hardware' started by Silversheepz, May 27, 2005.

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  1. Silversheepz

    Silversheepz Thread Starter

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    Hi Peepz,

    I've been using my puta fine for weeks, months infact, since I got it last Sep... this morning turned it on and for some reason within about 10 minutes I got a message from my biostart system control utility programme that the CPU was over heating and had reached 65c!!!

    I have now idea why, or how to fix it so some help would be greatly appreciated, I've no idea what info you need so please ask and I will give everything I can.

    Some basics, if this helps at all....

    The PC is a p4 3ghz, 1ghz ram, running win xp, service pack 2, graphics card is an nvidia geforce fx 5500 128mb .. not sure what else you'll need...

    Any help is appreciated!

    Cheerz

    Sheepz
     
  2. junker39

    junker39

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    Open the case and ensure the CPU/heatsink fan is running and check for dust on the heatsink and fan blades. A good cleaning may be all it needs. And Welcome to TSG.
     
  3. Silversheepz

    Silversheepz Thread Starter

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    Ok, so call me stupid, just took the casing off and the fan next to the CPU is not even moving!! :eek:

    So, should I turn the PC off, take out the fan, give it a good clean, plug it back in and see what happens???

    What could have caused it to stop working??? .... I know, I know ... how long is a piece of string!!??

    Thanks
     
  4. junker39

    junker39

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    You need to turn the PC off real quick before the CPU has a melt down. Then remove and/or clean the fan and heat sink. Put it back together and try. If it doesn't run, shut down and get a new fan.
     
  5. crjdriver

    crjdriver Moderator

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    First is this the fan on the cpu heatsink or is it a small fan on a chipset that is not turning?

    The heatsink will look something like this
     

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  6. crjdriver

    crjdriver Moderator

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    BTW P4s will not melt down. They use throttling to keep temps within limits. I even have a video of a p4 running without a hsf installed. It runs slow, however it keeps running.
     
  7. Silversheepz

    Silversheepz Thread Starter

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    It is definately the heat sink not turning, just taken it apart, given both fans a good clean and the coppery thing like that pic a good dust too .... was lots of it ....

    I have a fan at the back of the coppery thing, which pushes air out the back of the puta, this is working fine .... but the fan at the front of the coppery thing is just sitting there ... and the temp is rising again now so I am going to have to shut down...

    I'll try swapping the 2 fans over to see if it is the fan or the connection...

    Any other advice is appreciated peepz!

    Cheerz
     
  8. Outsider

    Outsider

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    Sounds like the heatsink fan to me...I hope. If not, it could possibly a mobo prob. We'll take it one step at a time though, so post your results with the fan swap.
     
  9. Silversheepz

    Silversheepz Thread Starter

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    Just swapped the smaller fan from the bak with the big one at the front and it is going round .... so I guess I have to buy a new big fan then....

    Gotta go ... heating up again!!
     
  10. 4steve44

    4steve44

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    Intels don't burn up. AMD's do ;)
     
  11. Skivvywaver

    Skivvywaver

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    AMD 64's don't burn up either. They have a thermal limit and if they hit that they shut down. All the older Athlons would cook. ;)
     
  12. Silversheepz

    Silversheepz Thread Starter

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    I've installed a new fan and it seems to be all ok now .... but just out of interest does anyone know what tempreture the CPU should be at .... it seems to be edging it's way towards 50c .... quite quickly ... well I mean, I've had the PC on for about 30 minutes now .... is this normal???

    Cheerz peepz!
     
  13. Silversheepz

    Silversheepz Thread Starter

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    Ok, so the problem doesn't appear to have disappeared ... here's a breakdown of whats going on....

    I've attached 2 pics so you can see what I'm on about...
    The Fan

    The utility


    The fan in question is the left one in the pic ....

    Installed a new one here and it is working now ....

    But as you can see in the 2nd pic, it is not registering the speed in the CPU fan, just the system fan ... althoug every now and then it does come up with a rpm and then changes back to zero...

    If I leave this utility on auto mode, the temp slowly rises to 50+, but if I untick auto mode, I can hear the fan pick up speed and the temp starts to drop...

    So, my question is, is this fan just not working with this utility then?? ... is there anyway I can change this to get it to work? ... or can I get another temp monitor and this would help??
     
  14. Silversheepz

    Silversheepz Thread Starter

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    OK, so now really strangely, after being off auto mode for about 15 minutes, so I could bring the temp back down ... I click it back on auto mode and it is now regulating itself fine ....

    Although is it supposed to let it get to a certain temp and then start cooling or is it supposed to stop and start keeping it at a certain temp???
     
  15. crjdriver

    crjdriver Moderator

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    Did you pull the heatsink as well as the fan? If so, you MUST completely clean all parts with alcohol and reapply thermal compound.

    FWIW I never use any app that changes fan speed. I even disable cool and quite on the amd64s.
     
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