[blue68f100]

If you did a system reset you must use assist to locate the unit. Preferably the v4 one. If I recall the older v3 does not identify v4 os.

The only other Snap that had OS on HD was the 1100. The 4100 has it in ROM.

MS does not follow the rules when you install a non MS System HD in MS based system. The only ones that are safe is Unix/Lynix Systems. So I'm guessing it altered the good HD. If you used the mfg disk utility you could have looked at smart data but that would be it. They to do not recognize the snap file structure, either. Now if you booted off of a CD version of HD you may have got away with it.

The snap uses a highly modified XFS file system. Highly modified. The only programs that work are ones that use bios direct access calls to read sectors.

You will probably need to reload a image from file. V3.805+ supports large disk. V4.806 is recommended.