old Celeron 600 overclocking

[944s]

Hello,
I have old Celeron 600 (cB0, 1.5v default, Copermine), ESC P6BAP, 256MB SDR PC133 ram.

In BIOS i can easly overclock @747Mhz by changing FSB@83Mhz - no problems, stable all time.

I want more :) . Computer will not start up, when i change jumper to 100 Mhz FSB. I do wire trick @1.65v - not start, also with @1.9v - not start.

What's wrong?

[batboy]

It's a first stepping. Not many of those early cellies would do 100 FSB.

[944s]

Maybe some wrong BIOS options or bad cooling? (27*C idle @1.9v now)

[batboy]

Cooling is fine. You'll need a 600 cC0 stepping to have a good shot at 100 FSB.

[944s]

Thanks.

I found solution - i disable on-board sound and now i can easly get 900 Mhz!

[Mr. $T$]

Thanks.

I found solution - i disable on-board sound and now i can easly get 900 Mhz!


That's really odd, how does sound have anything to do with that? O well the point is it works, congrats on the 50% overclock :beer:

[944s]

Thanks. Now i using 945 Mhz @1.9v stable all time. Max i can get 1034mhz :)

More voltage needed :D - temps amazing low - 25*C.

[batboy]

The on-board sound runs off the PCI bus, maybe the AGP/PCI wasn't fixed to 66/33?