Just me 2cents....
I did an obvious mistake this past weekend when I thought there was an updated version of the NF7-S bios which brought up to 1.9 update... needless to say that I didn't pay attention to which boardversion Abit was posting it for... after updating my bios to v19, and rebooting , of course the bios threw up and nothing came on... Zapped bios chip isn't the greatest accomplishment I'd like to be known for, but I did receive my bioskit from excaliberpc, which I had to do a swap of the bios chip and reprogram the zapped one... When I pulled out my original bios chip out from the socket, (did this ever so carefully) I noticed 3 bent pins from the corner of the bios chip. carefully resetting them back into place, and resetting the bios chip carefully onto the socket, the reprogramming took place without incident. Mind you I couldn't get over 200FSB with the xp1700 0319 from SVC... I don't want to indicate that there might be a cause from the actual bios chip when it's been put in by the manufacturing plant, but it seems old that after straightening out those pins, on the original bios chip made a difference... maybe... I did have the same symtoms that you all have described here with the sirens and the rig not booting up after raising the vcore... but I also have two kt400 mobo (ABit AT7 MAX2 v1.2, and a FIC AN19-E) which I've check my xp1700 on... nothing abnormal with the cpu's performance on those boards. so, I can only described what I saw and what I did. So far no sirens, chip is back down to 220FSB, @v1.92 w/11.5multi. just my 2cents.
I did an obvious mistake this past weekend when I thought there was an updated version of the NF7-S bios which brought up to 1.9 update... needless to say that I didn't pay attention to which boardversion Abit was posting it for... after updating my bios to v19, and rebooting , of course the bios threw up and nothing came on... Zapped bios chip isn't the greatest accomplishment I'd like to be known for, but I did receive my bioskit from excaliberpc, which I had to do a swap of the bios chip and reprogram the zapped one... When I pulled out my original bios chip out from the socket, (did this ever so carefully) I noticed 3 bent pins from the corner of the bios chip. carefully resetting them back into place, and resetting the bios chip carefully onto the socket, the reprogramming took place without incident. Mind you I couldn't get over 200FSB with the xp1700 0319 from SVC... I don't want to indicate that there might be a cause from the actual bios chip when it's been put in by the manufacturing plant, but it seems old that after straightening out those pins, on the original bios chip made a difference... maybe... I did have the same symtoms that you all have described here with the sirens and the rig not booting up after raising the vcore... but I also have two kt400 mobo (ABit AT7 MAX2 v1.2, and a FIC AN19-E) which I've check my xp1700 on... nothing abnormal with the cpu's performance on those boards. so, I can only described what I saw and what I did. So far no sirens, chip is back down to 220FSB, @v1.92 w/11.5multi. just my 2cents.