One thought:  From what I read here, you never tried re-copying the DOS
system files onto the hard drives.  Boot from a floppy that has sys.com on
it and then type "sys c:" and press enter.  If that does not work, try
re-initializing the master boot record by booting from floppy that has
fdisk.exe on it and typing "fdisk /mbr" and press enter.  This is a
non-destructive format of the master boot record and could fix your
problem.  You might also check for viruses that could effect the hard drive
on the mbr level or the low-level format level.  Nortons or McAffee's have
this ability.  And make sure the jumpers are set for master hard drive.
They won't boot if set for slave.

Hope this helps.

Martin Irish    8?)


At 01:09 AM 7/8/98 +0000, you wrote:
>   Hello,
>          Hope someone can help me out. I have some older hard
>drives(in the 202-328MB range)have tried them on a number of
>different machines and get "Invalid System Disk, Replace the disk and
>press any key."when starting up. If I put a bootable floppy in, it
>will boot up and I can look at C: and all seems fine. I have even
>loaded Win3.1 onto one of them and it will run fine as long as I boot
>up with a floppy, go to C: and tell it to run Win. It is marked as
>the active partition and have tried booting without the A:(floppy)
>only C: set in the bios. They seem to be formatted with fat16 and
>have tried all the jumper settings on the HD.  Any thoughts on what I
>may be doing wrong would be appreciated.
>
>
>                                                     Thanks,
>                                                        Mark Walter
>
>