krebizfan
Veteran Member
Do you have an actual DX4-133 or do you have a DX5-133? There was a DX4-120 which tried to have the bus speed at 40 MHz; that was the fastest of the clock triples I know of. The X5 run at 4 times the bus speed so the bus speed should be 33 MHz. A fairly complete list of AMD 486 variants is at http://www.cpu-world.com/CPUs/80486/MANUF-AMD.html