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Heat Problems

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Jun 19, 2001
St. John's NL, Canada
I have a p3 500 @ 575 boots at 600 but unstable
I belive that my heatsink/fan combo could be the problem. I looked on my Purchace sheet and it says Pentinum 2 cooler "Sold me P3 and gave me P2 cooler what "********". I need help I have to overclock this baby to about 650 I need a good slot 1 cpu Heatsink & Fan. Any suggestions would be appreictiated I would tell my tempature but my board dont have that option. So 575 Rock Stable 600 Unstable and i doubt it is my ram i have pc133 and my board is a 100mhz board which in overclocking options gives option to overclock FSB to 153 with my current speed i am only running a fsb of 115mhz and ram is running 115mhz so it is still 18mhz below what the ram is rated to run + I have a 120mm fan blowing on cpu + a killer 80mm Fan blowing on PCI components. 90mm Fan uptop blowing air out also. I hear all this hype about orb's are they good for slot 1?
and I realy dont care about sound. For me to add a loud fan in my box cant posibally make it any louder than what it is now :) and if it do oh well . Please send some figures and ideas on slot 1 heatsink + fans thx.
what ever you get do not get a Orb. getting a good top line HSF and you will be allot more happy. i'm not much of a slot person so i cant be of much help there but you might get more responce if you start a new post and in the subject ask good slot 1 HSF needed and you may get allot of replies. as far as you overclocking your CPU i would be very careful as without knowing your temps your flying blind through a valley with high trees. knowing temps is really a must if you want to push your CPU to its limits.
You want a good Slot-1 HSF get the GlobalWIN VOS32. It is a VERY good Slot 1 HSF, but MAKE sure to check your measurments because this HSF is a BIG mutha! You could lose up to 2 DIMMS if your mobo is too small.
Is you P3 based on the 'Katmai' circuit architecture or 'Coppermine' architecture? If you have a Katmai, then you problem may not be heat, but rather the (outboard) L2 cache memory on your Slot 1 CPU. It just can't take too high a freq. As far as I know, cooling the L2 cache of Katmais do not change anything. I sold off my old P3-450Mhz Katmai to get a Coppermine 600Mhz that rocks at 900Mhz (and that's just with the stock HSF). Solution: Appreciate your current system till you get enough moolah to buy a AMD Thunderbird system.

If you have a Coppermine (no visible L2 memory chips beside the core), then it may be a bad batch but that is highly unlikely 'cuz all P3-500E's I've come across can do at least 5x133=666Mhz EASILY.
Yeah mine is based on the Katami architecture. What is the difference in these processors Coppermine &N Katami? Is it the same architecture that the pentinum 2 usus?
Other than the fact that Katmais throw out more heat per megahertz than the Coppermines (owing to the 'thicker' circuitry in Katmai), the Katmai version of the P3 uses outboard L2 memory cache modules that are rated at half the CPU speed and are usually pretty maxed out. My P3-450 could only achieve 558 Mhz, no more. The coppermines have a better quality L2 cache memory integrated with the core that runs at CPU speed and can 'keep-up' with the core's freq.
KevDaMan (Jun 20, 2001 09:28 a.m.):
Yeah mine is based on the Katami architecture. What is the difference in these processors Coppermine &N Katami? Is it the same architecture that the pentinum 2 usus?

The P2 Klamath has 0.35 micron circuitry. The later P2 Deschutes has a finer 0.23 micron circuitry, similar to the P3 Katmai. P2 heatsinks can be just as good for P3s as P2s produce a lot of waste heat. The thing is, P2 heatsinks may mount differently than P3 heatsinks. I think the P2s and early Celerons had some kind of 'heat plate' in between the core and the heat sink. Well, this is trivia nowadays.