(Sorry if this question is in wrong place)

I have a Toshiba MK3021GAS, Sno 4DO5677T, 30.1gb.

This is marked as, Sec 63, Hds 16, Cyl 16383, on the label.
'Spinrite' (Steve Gibson) HD test programme shows >
Original config, Sec 63, Hds 251, Cyl 573.
Current config, Sec 63, Hds 240, Cyl 1024, and will not test.

This drive when used in a 'Advent' computer works 100%,
Formats, partitions, scandisks and loads OS 100%.

When put in a IBM 600e (where it was working 100% all
as drive C:, UNTIL I decided to partition it. I partitioned it
in the Advent). Now the 600e runs all tests as OK in the
'Easy-Setup' programme (bios, press F1 and switch on)

BUT, in the 600e when booted with a floppy sees C: drive,
I can partition (fdisk) it, format it, but it will not run scandisk,
comes up with 'fat errors' in all partitions.

If I copy all the files from A: (boot disc) to C: they show up
in C: when I 'dir', but .exe files will not run, computer locks
up with a ' - ' (minus) sign.

When I boot/run 'MHDD' and type ID it describes the HD as
a POSHIBA IK3021CAS, Sno 10DK5273T (it should read)

> TOSHIBA MK3021GAS, Sno 4D05677T. to add more salt
to the wound when put back in the Advent it will Fdisk, format,
scandisk, load OS no problems........

Please can the 'Guru' help,,,, grovel,,,, grovel.....