Installed amd 2800 barton fsb 333 but says its an unknown cpu running at 1666 mhz

If its showing as 1250 then it has dropped down to 100mhz FSB. It sounds like your settings have gone to defualt anyway.

Are they saving when you change them? If you put it to 166 then save and exit and go back, does it still show as 166?

 

Yes, they are saving. My multiplier is locked at 12.5 and yes the cpu fsb is at 100mhz. The problem is even if I clock the cpu fsb at 166mhz, it doesn't change anything, its stuck at 1250mhz.I can increase the cpu fsb to 200mhz and it still won't change anything. Its as if the motherboard isn't detecting that I am changing my fsb. But the bios is.

 

Has any one heard of a mobo locked at 100mhz fsb for the cpu but you can change the fsb for the cpu in bios but doesn't actually do anything?

 

Only when the settings havent been saved...ie F10, or the cmos battery is dead and not saving settings properly.

 

hmm it would be odd for teh cmos battery to die, but it would make sense. actually...if the cmos battery died, then it wouldn't keep time either

 

Just to let you know I figured it out, on one of my jumpers, there is a setting you can move from user mode to safe mode, for some reason the jumper needs to be set for safe mode, that is the only way it works. User mode doesn't let you adjust anything but safe mode does. Does that sound right? The battery is fine and my settings get saved in bios.

 

it seems like it would be the other way around but you could try it