Tried "Do not reset " from F8..but still as above. New P4M900-M4 Biostar MoBo.
Hard drive is a clone of XP from my laptop, from 80Gig to Toshiba 1Tbyte.
Possible hint :my 12V is only ~11.16,all others are much closer to spec.
Can't get to any diagnostic,can't get CD to play a XP boot disk to try for Chdisk etc.
Bios is accessable but no change I've tried has cleared the problem.