I have just changed my mobo and case and have put together another system for my daughter using my prevoius motherboard and case (Gigabyte GA 7vax and a tsunami midi tower with 300 watt power supply), which incidently I never bothered to seperate the two as it was not necessary. I attached all cables, inserted 512mb 2100 ddr, 1700xp processor, hdd drive, floppy drive, cdrom, writer, 64 mb agp graphics card etc. I attached a monitor and powered up. Power supply came on all fans spun, cdroms and floppy lit up, but the monitor just keeps going into standby and the boot up doesn't follow through. ARGHH! Any ideas anyone :-).
To clear the BIOS in a dual BIOS board just take out the battery on your M\B and leave it for about 10mins then put it back in...as for the monitor keep resetting...the only EVER time ive know a monitor to do that is if the CPU itself is unstable..u sure u set it for XP1700+ setting and not somthing like a 2000+ setting? if its on auto-detect try seting it manually an the 1700+ setting.
is the CPU itself seated properly in its socket? the reason i ask is that if ur not careful the CPU can actually jump a little when u put the socket arm down,still closing but with the CPU very slightly elevated out of its socket thus doing what you describe as a result.