Ok. Now the board ist running and showing DX2/66 at the diagnostics screen :happyhappy: I did following:at 1st (I think this was the problem) I removed the complete cachefield and replaced them with 9 equal rams (the rams first installed had an ending xxxxxxx-15 it means, they are 15 ms fast. In the …

Hi, I've the same mainboard SY-25M/N/P I'm trying to set up a AMD DX2/66 CPU but got no luck so far. Yes, the voltage is however at 5V. This is no prob for Overdrive or DX2/66. My board shows UNKNOWN CPU 50 MHz. If I reset it, the ist is only 32 MHz. It makes me crazy, really. I've got the correct …