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View Full Version : Pentium Pro 180 => 233 + Win95 = Burned Fingers


kendro19
01-25-02, 04:34 PM
Why is windows 95 burning my fingers???????

After owning my Dell Dimension XPS Pro 180n (it has a dumbed down Intel VS440FX motherboard) for 5 years, I decided to overclock it.

I have it set up with dual boot to NT4 and Windows 95.
Normally it runs NT, but it came with Win95 and I keep it around to run that odd application.

I bumped up the bus speed from 60 to 66 MHz (17-19 to 19-21) to get to 200 MHz.
I bumped up the multiplier from 3x to 3.5x (9-11 to 11-13) to get to 233 MHz.
It was running great, with stock heatsink and fan.
I ran a performance test at each step, and kept touching the heat sink. It remained cool and the performance tracked cpu clock speed.

I had the brilliant idea of booting into windows 95 to see the performance change. The tests actually indicated better performance (about 20%) in windows 95, but the heat sink was getting hot.

About then, my wife sent me on an errand, so I left my pc running. When I come back about an hour later, my pc had shut down, and the heat sink is very hot. I power down, and try to boot into NT4, no luck. I leave it to cool for an hour and bump the speed back down to 180. Boots into NT4 after cool down....no problem. It boots into win95 after a couple of tries, but the heat sink gets hot.

Right now, I have it running a 233 MHz in NT4, and am very afraid of windows 95.

Why is 95 burning up my CPU?
Would Windows 98se have the same problem?
Any experience or explanation would be appreciated?
Thanks - Ken

flounder43
01-26-02, 06:22 PM
I wouldn't bother with cpucool or rain...
If your hsf can't handle the heat when it is processing, that is just the way it is...
Those programs will only cool it at idle. What good is an overclock if you can ony keep it going at idle?

Anyway, I have a p.pro 200@233 right now with win98 that is Folding 24/7 (that is full load). I am using the stock HSF and it gets pretty hot, but doesn't crash. I feel lucky about that because the HSF is a piece...

I would get some better cooling if you want to keep it @233.

batboy
01-26-02, 09:13 PM
Better cooling is definitely needed. Bigger socket 7 heatsinks are a dime a dozen. Install it using a good thermal paste.