I'm pretty sure the CD is o.k. because I can boot from the CD and everything is fine until I start the actual install. I have no idea how to check the battery on the MOBO. Not even sure where it is! I'll look for it to night but the date and time info stays accurate so I think that is not an issue. As with any older model HP the ribbon cables are tightly packed in there (not much room in a Pavilion). The seem intact. I can try another CD. I don't have any other versions of Win OS to put on. I have MAC OS X but that aint gonna help! Since I can't get the OS on the modem is mute until I can get Windows up. I can replace that for $8 at Fry's Electronics. I have tried the HP support live chat but they keep sending me to a webpage that says I need to get the Recovery Disk for this model... which I can't find. Just breathe, Art!!! B) Ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh! Sorry, I forgot to mention that the chip is a Celeron. Not P3.