I have, I'll give it a whirl tomorrow...
Tonight I twisted the cpu block 180 degrees back to where the instructions say it should be, disconnected the hdd, cdrw AND the gfx card and it's still doing it..
Getting fed up now..
I need more ideas chaps, it's about to get taken to bits and sold at this rate! I can't help thinking its temps because once again, I left it all day, turned it on tonight and got into the bios fine.. stayed there for about 2-3 minutes and then started doing it again...
literally on-POST beep-off-on-POST-off-on-POST etc..
Doing my head in, if I could diagnose it I could fix it but as you can see from this thread.. taking it to bits isn't really an option! (well it is but I won't be putting it back together again)