Depends on which BH6 you have. If it's the 1.0x, you are better off with the 1.4. If it's 1.1 or higher, then maybe a lower multiplier chip like a 1.1A. The 1.0x can not run 133 FSB since there is no 1/4 PCI divider. The later model does have it. Even so, you will still be out of spec on the AGP @ 89 MHz. 1.4 @ 112 FSB = 1.57 GHz is a good bet. You will also need a Slocket with a mod or a Powerleap adapter.