On 17 Jul 98 at 22:16, Joel Bluming wrote: > John, you suggest I run the chip at 120 instead of 100. The manual has 4 > jumpers for clock speen, but no chart for specific speeds, only > combinations for different CPUs. There are specs for indels thru 100MZ, > and AMD thru 100, including the 40 and 80. Is there a way to decifer > which jumpers control the speed and which control the multiplier? I have found a manual at http://cetlinux.saultc.on.ca/~ctrainor/inventory/486/486motherboard.htm which appears to be for your board, and which shows the bus speed settings (25, 33, 40, 50) but I do not actually see any multipliers documented. [Try experimenting with JP40, however....] (I recognize this layout -- a local restaurant has one of these boards, turned into a work of art and hanging on the wall.) David G