Since it's a little touchy keeping the Intel Pentium II 266 cool at 300 MHz, I've only used it at it's default clock speed of 266 MHz.
Performance of Slot One Boards at 66 MHz Bus Speed under Windows 95
Performance of Slot One Boards at 66 MHz Bus Speed under Windows NT
The Abit AN6 doesn't currently run with any SCSI controller. Abit is aware of the problem and is working with high pressure on it. This board is also able to run at 75 MHz bus speed. Results at this bus speed will follow as soon as the SCSI problem is sorted out, but so far the effects of 75 MHz bus speed are fairly disappointing.