The motherboard is a ASUS A7N8X-E Deluxe. I bought a SATA 2 drive, but it was not recognized by the RAID controller. It turned out the the latest ASUS BIOS did not include the (apparently necessary) onboard SiL RAID upgrade.
I learned that gamers had made a BIOS that included that upgrade. So I got one, and when I flashed it, it fried the motherboard.
I then bought a new BIOS chip, a chip removal tool, and put it in (w the latest ASUS BIOS, not the one I had before, and not the gamer one).
This seemed to work. And Puppy Linux off a CD worked fine.
But the computer tried to go into Windows, all it did was, it got to the Windows Logo which faded and then the computer rebooted
So I did a (non-OEM) "windows repair install". The effect was that Windows now does not start at all (I get a BSOD, no logo).
My questions are
My fallback strategy is to get my backup BIOS flashed on on my old chip and go back to square 1.