CentreFix wrote:Just to clarify, we are inserting the 5.1 disk 1 floppy in the drive BEFORE power-up and expecting things to happen from there. I say this only because that's what happens when I inserterted the Ver 3.0 disk 1 floppy that came with the desk and she went to install. I am presuming the upgrade to 5.1 is conducted in the same manner.
Yes, it should be the same - if it boots from your v.3 disk, but not from your 5.1 it means something is wrong with the 5.1 disk.
CentreFix wrote: Under Windows 7 I am formatting the floppy disk using the CMD prompt in the start menu and typing FORMAT A: and letting DOS do its thing. There is a line in DOS that allows a "Volume label, ENTER for none" so I just press ENTER. From there I extract the 5.1 prog to the floppy. All the files appear on the disk.
Ok, first of all: There's no reason to format the disk under windows/dos first. The 5.1 disk image utilites you downloaded has an option to format the disks, and installs everything needed to boot from the disk.
There is one thing that you keep writing, that I think could be the problem:
CentreFix wrote:From there I extract the 5.1 prog to the floppy
What exactly do you mean when you write "extract"?
Technically there's a big difference between letting the utility "write" the image on your floppy, and "extracting" the files to the floppy - I'm still a bit unsure whether you are doing one thing or the other.
Just to make absolutely, certainly, really really sure:
You should have 3 files:
d8b51_build445_disk1.exe
d8b51_build445_disk2.exe
d8b51_build445_disk3.exe
Forget the two last for now, and just let us see if you can make the first disk, and get it to boot. (if the CPU unit boots from your version 3 install floppy disk, then I don't think the bios settings are the problem).
You doubleclick the first exe file, and a window pops up with the program.
In that windows, the
only things checked should be "writing on floppy" and "formatting".
(since formatting is checked, you don't need to do any previous formatting).
You should have your floppy drive selected in the "floppy" drop down menu.
And just 1 "number of set".
Is this what you have already done?
Of not, try it out and see if you can boot from it.