I have an ASUS P2B-F rev. 1.00 motherboard with a 633 MHz cC0 Celeron FCPGA on an ABIT Slotket with 256 MB 133 MHz SDram. The CPU is completely stable at 712 MHz (9.5 x 75) with 1.75 Vcore (28 C idle & 38 C full). But if I want to start it with 100 MHz FSB then the bios freezes, even if I set the Vcore to 1.85 V. I have the "1013.a" version of bios (it's the newest). Sometimes I can reach the half-time of the Win98 bootup, but it freezes then. Should I dare to give more voltages to it ? If anybody has experiences with this config then please let yourself be heard.