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I've had (and abused) for over 4 years: sandy gigs, pretty harsh drops, 2 failing hard drives, and it still runs fine EXCEPT for random freezing, no bsod; only way to get it moving is to keep the power button pressed or remove power. I've noticed that it is definitely heat related. Living in a big city the dust is a huge problem, I have to clean it out and replace the thermal paste every 2 months or so because the issue gets out of hand and the freezes become more and more frequent.

I've ruled out RAM and hard disk problems, so I figure it's either the CPU or GPU. Is there a way that I could rule out GPU? I've read that CPUs will start doing this if they have so many uptime hours, and this thing has definitely ran for hours on end almost every day for the past 4 years - but I could replace it and even perhaps upgrade it if I knew it was the cause of this problem.

Hennes
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snowphish
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Some things you can try is check that the memory is correct for the laptop - My Macbook would run very hot when the wrong speed ram was added. Also, purchase an Air Duster and spray the air intake with compressed air thoroughly.

If still hot then finally take apart the laptop and remove the heat-sink for the CPU, then re-do the heat-paste on the processor.

Windows Vista is also known to make some laptops run very hot - If possible, try another operating system or reset to factory settings.

JohnnyVegas
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