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Acer 4672 Freezing

I am having some issues with an Acer 4672 freezing. I have reinstalled the operating system and it still freezes. Sometimes, I get a Blue Screen, but the error means nothing to Microsoft. I have chanegd the memory to no avail.
One thing I have noticed is that the laptop gets hot. When I switch on, the fan runs for a few seconds and then no more. It used to switch on and off quite frequently. I guess there is a sensor somewhere which is not working? Any idea where I might find it and then how to get it replaced. I am in the UK and am comfortable with going into PCs and working on them, but not so sure with laptops.

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  • GrahamC Apr 10, 2008

    I'm running the PC on a table. I have to have the back propped up on a CD Case otherwise the PC overheats. I looked for an updated BIOS, but haven't found one.

    Thanks for trying.

  • GrahamC Apr 10, 2008

    I'll have a go at cleaning it out - I'll strip it down and see what I can see. It didn't look too bad last time I looked. The fan will run briefly at PC startup, but doesn;t thereafter. Speedfan didn;t work for me - It didn't find any sensors or fans. If I knew where the sensor was, I might try to replace it or just short it to run the fan



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Most likely, your laptop's CPU heatsink and fan are clogged with dust. Try getting a compressed air can and aiming it right up to the cpu fan and blow it full blast. By the way, you might want to do this outside, as laptops gather far more dust than anyone thinks.

As Riinuka said before, you have have fan issues. Unless there is a mechanical failure, fans will usually work. If you do indeed have a dust problem, sometimes that causes sensors to be too insulated to detect temperature changes (I found that out the hard way, the first time I fixed what I can only describe as one of the dirtiest computers I haver ever seen).

If you are still having problems after cleaning the heatsink out, you may just have a dead sensor, which is not good news, as those are usually not replacable (although some companies are lazy and just solder a loose sensor onto the motherboard, in which case, you're lucky). To find out if your sensor is dead or not, try running speedfan, which will tell you the temperatures your sensors are reporting (or not reporting).

Posted on Apr 10, 2008

  • William Rodriguez
    William Rodriguez Apr 10, 2008

    If speedfan did not detect fans or sensors, that could mean that they've gone bad. If they have gone bad, well the only thing I can suggest is getting a laptop cooler. Laptops usually run cool enough that you can get by without the system fan if you just have a constant source of airflow (in this case, a laptop cooler). There are some good cheap ones, you can look here, they have a good selection.


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It sounds like your system is having issues with controlling the fan. Check to make sure nothing is obstructing the fan, and ensure that your machine isn't running on something soft, like a blanket.

You might try updating the BIOS, this can sometimes resolve fan issues as well.

Posted on Apr 09, 2008


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