Sign in with
Sign up | Sign in
Your question

Pentium 1 Heatsink

Last response: in CPUs
September 28, 2010 6:31:05 PM

hey guys i wanna ask if i turn on the system without the heatsink will it freeze the system from overheat

More about : pentium heatsink

a c 103 à CPUs
September 28, 2010 6:33:01 PM

yes, if you operate a cpu without a heatsink and fan, it will shutdown and possibly burn out
a b à CPUs
September 28, 2010 6:40:18 PM

Yeah, the 386's were pretty much the last CPUs you could run without some sort of heatsink. 486's and Pentiums run too hot without some sort of heatsink and/or fan.

You might be able to find a northbridge heatsink or something similar to attach to your pentium. A modern northbridge with built-in GPU is far more powerful than an old pentium. You might need to look for a heatsink that attaches with an adhesive tape (many northbridge coolers do), since I doubt anyone is still making Socket-3/4/5/7 coolers.
Related resources
September 28, 2010 6:41:39 PM

how much can a 15 year old cpu heat up
September 28, 2010 6:43:03 PM

i have a heat sink but i dont want to waste money on thermal paste besides there some still left after i removed it :p 
a b à CPUs
September 28, 2010 6:45:25 PM

Enough to fry its brains out. Those old pentiums didn't have thermal shutdown protection, so they would run till they fried (though of course, DOS/Windows would stop functioning long before then). It will get too hot to touch, believe me.

Unless your plan is to see if you can catch your computer on fire, don't run that pentium without a heatsink. It will fry itself to death. It will only run maybe a minute at the most before it gets too hot, so no, you can't just turn the computer on quick to try to copy files off it (if that's what you were thinking).
a b à CPUs
September 28, 2010 6:46:51 PM

Oh, I see what you're saying. No, thermal paste won't be too important. Many heatsinks back then didn't even come with paste. As long as it makes good contact, the heatsink alone should suffice.

Well, I should clarify. What speed is that processor? If you're talking 266MHz or something like that, it might be good to use paste. If its an old 100MHz, then you should be fine (I ran a 166 for years with no paste).
September 28, 2010 6:48:46 PM

aah im just putting up a pc from old school parts i think theres a another mb oh and 1 more question will that 10 to 15 year old thermal paste do anything or its useless
September 28, 2010 6:50:21 PM

i dont know whats the clock unfortunately im still negotiating with my teacher they dont trust me (cant blame them i cracked the admin passwords on the whole pc room)
a b à CPUs
September 28, 2010 6:59:24 PM

Ok, scrape off the old paste (from both the CPU and heatsink). That old paste might soften-up after it was heated, but you don't want to burn out your CPU discovering its too old. Stick the heatsink flush to the CPU and you should be fine.

Run it for a few minutes checking the temps with your hand. The heatsink should warm up (indicating its making good contact with the CPU), but it shouldn't get too hot to touch.
September 28, 2010 7:00:55 PM

well scraping it off means remove it right.and please explain the quote flush to the CPU how to flush it :) 
a b à CPUs
September 28, 2010 7:04:37 PM

When I said "flush to the CPU", I meant make sure the heatsink surface makes complete contact with the top of the CPU.

You are saying the heatsink is still attached to the CPU? Sorry, I was under the impression that there was no heatsink attached. If the heatsink is still attached, leave it there. There should still be a good seal between the heatsink and CPU if no one disturbed the thermal paste in between them.
September 28, 2010 7:07:15 PM

i removed it earlier this day but i havent touched it currently the heatsink is reatached
September 28, 2010 7:09:20 PM

and no one knows if the mb was touched
a b à CPUs
September 28, 2010 7:19:07 PM

If it's a 100MHz or less CPU it should be fine with just the heatsink on it. Always best to apply new thermal paste of course, but if it's just a slow Pentium I wouldn't worry about it. You could even run a 100MHz or lower CPU with just a big heatsink and no fan. The original Pentium goes all the way up to 200MHz, but over 100 you really should use thermal paste. If it's an MMX CPU though then yeah you need to use thermal paste.
September 28, 2010 7:35:59 PM

I've got a P1 w/ win95 that I use off and on for some DOS games that I haven't moved into DOSBox yet. Mine came with a latch heat sink and paste (old Compaq Presario). I have never replaced the paste, and that sink gets warm, but no problems.
September 29, 2010 6:43:32 AM

i have an old compaq armada 1580DT runs starcraft perfectly