View Full Version : pentium 2 need more power
Hi im new and I overclocked my p2 from 300 to 350mhz by covering the b21 pin now its at 3.5 *100 fsb but i cant get it any higher. My bios allows me to the change cpu speed. when I change it to 400 or 450 it doesnt even boot up. I doubt i could change the voltage on it. THe core 2.8v and aux. 1.5v .It is a Klamath p2. The mobo stays around 30 deg. celcius idle. Is there a way to make it more stable and/or get more power. The manual says the cpu changes the voltage. The mobo is Tabor MP440bx. :confused:
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DocClock aka MadClocker
12-04-01, 06:24 AM
A freind of mine had a klamath 266 and it would not go to 400, but it allowed a multiplier of 3, and 3.5 (4 is default)...although it was really squirely at 350mhz, and the highest stable speed was around 300.
Klamaths weren't the greatest clockers.... when they came out a fifty mhz overclock was about the max you could get out of them, even with a peltier.
Look for things in the bios like "speed error hold"and disable it.
Does it even try to boot, or does it just do nothing at all?
If it shows a blinking cursor, then it might just need a little tweeking.
I seem to recall something about a voltage hack on the pcb, but I don't remember what pins to cut/cover/jumper....but it was involved, and if you cut/jumpered the wrong one, you could be giving it 5volts and instantly fry it.
I will try to find the page I found that info on, and will post back.
Hope this helps
Sounds like you have a CPU with a locked multiplier. You are probably maxed out with that system.
If you have voltage adjustment on your mobo then bump it up just a little bit at a time and see if that helps.
Also you may need a better heatsink to get speeds above 350
those 300's are almost the end of that line and you cant do much to them
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