http://forums.overclockers.ru/viewtopic.php?t=31790 view=previous sid=efec969a1c9d0de3c07fefb33ad5603e http://www.tomshardware.co.uk/forum/202804-10-celeron-coppermine-pinmod-help with a SiS620 chipset and it

forums.overclockers.ru/viewtopic.php?t=31790&view=previous&sid=efec969a1c9...

tomshardware.co.uk/forum/202804-10-celeron-coppermine-pinmod-help
with a SiS620 chipset and it only supports Mendocino (300- 450MHz) celerons, Early P3s, and Slot1 PIIs and celerons.
In the manual there should be a jumper to switch between Mendocino celerons and PIIIs but I don't find it in the board.
Tried the thing AS-IT-WAS on the s370 but didn't boot (hope the 2.0V hasn't killed it) and now just want to make it work, then, hopefuly OC it with FSB 100 @ 950MHz.

Your motherboard is among the most horrendous made in that era. The SIS 620 chipset, along with the PCChips conservative bios settings (to keep it stable as a cheap quality board), and the integrated video all combine to make it the worst bottleneck a PIII could have. Ditch the motherboard, an o'c CPU on it will be significantly slower than the same CPU not o'c on another board and chipset like Via 694 or 440BX, even i810 based.
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