all hardware is good hardware old or new, if there is a problem there is always a solution. I fixed my bios without any mutilation or spending money toward my motherboard. My computer did the same thing. When I turned it on nothing but a blank screen after restarting it from Windows XP freezing. My Bios chip was dead, which meant my motherboard was dead. I'm using a Compaq Presario 7594 with a BMW motherboard and an old Intel Celeron processer with only 255 MB of obselete RAM. What I did to get my bios up and running was nothing but trial and error and hope it works for you, at first it was hell and yet so simple. Considering the recovery portion of the CMOS was dead I presume that it was a dead motherboard. These are all what I did to bring my computer's motherboard back to full operating life. Please keep an open mind about all I have posted because I don't know if I flashed the ROM or not but if you were as tired of this crap you probably won't care as long as you turned on your computer and were able to be greeted by your computer's manufactuer's logo.
1. Went to the computer manufacturer's website and downloaded a newer version of the BIOS meant for this computer.
2. Burnt it to CD-R or floppy it doesn't matter because when you turn on the computer the POST runs and is looking for something in all drives, I used both. I didn't need to rename any medum.
3. Considering my computer was 14 years old there is no doubt I had to replace the CMOS RAM's 3Volt battery.
4. Set the jumper directly on the motherboard to recovery; I don't know if this helped but considering my CMOS is 100% blank but trying anything is worth it. If it doesn't work set the jumper back to normal operations.
5. Put the CD-R or floppy in there appropriat drives and restart the computer. When I did it the POST showed according to the LED on the drive that it found what it was looking for. I hit the enter key on the keyboard and space a bunch of times even though the moniter remaned blank and the light on it still was orange, left the computer on for at lest two hours and aftere I accidently restarted it out of no where I saw the big COMPAQ logo staring right at me that I haven't seen in a year after it went completely dead. Moments ago the screen was black and empty and no signal was being sent to the moniter and now its running telling me how much memory is in it. Even though it had shown no opperating systems detecting, CMOS was invalid but still the BIOS is running again.
Thanks to all that I repaired my BOOT loader and now I'm able to post this reply with the computer the I presumed dead, on here hoping that it will help somebody else in a predicament as serious as this. Thanks for reading.