memory prob on 4th dimm onbx6r2

[sowed]

i put the modules in the first 3 everything good runing p3 450@558 124 fsb put the 4th in get windows protection error swap them around same thing then i leave the 4th open works great even @129 fsb, have allpc100 dimms and 1 133hsdram tried all in 4th dimm same thing any suggestions

[Roy]

If they all work together at 100 then the board is OK. The extra circuitry Abit includes to make a fourth DIMM possible may not be able to keep up with the task at 124.