CompuWiz-approved (what ever happened to him?) Celeron 533A, MSI-6905 Master slocket, aircooled with Arctic Silver, Alpha PEP66 and Sunon 50 mm (quiet) fan:
976 (122 FSB) 1.9 and 2.0 V unstable but benchable on a Soyo (VIA board which had a 122 MHz setting)
960 (120 FSB) on an Asus P2B BX mobo at 1.9 V. 80% overclock! Survived burnp6 & UT Intro flyby running simultaneously for hours, and then dnet OGR for several hours. I don't run at this speed because the voltage is too high and the PCI bus is way out of line, and plus, this is at the extreme edge. I run 880 at 1.8 V but it is stable at 896 at 1.8 V.
Do I win the highest percentage stable overclock award?