I have no clue on this one, has anyone got any sensible suggestions?

I've put a Samsung 6.4gb harddrive in my Win 98se machine.
Fdisked it...it FAT32'ed ok.
Windows recognises it and reports the correct size. Its fully accessable.

BUT

AmiBios doesnt recognise it at all, Wont autodetect it and wont accept my manual settings.
Its totally invisible to AmiBios.

AmiBios Version 1.19
AMD K6 2/500 500mhz
Samsung SV0644A 6.40gb. 13232 Cylinders 15 heads and 63 sectors.

I've played with the jumpers, FDISK'ed it twice, and was going to upgrade the bios but it seems there is no upgrade available

What have I done wrong?

Ho Ho my Hardrives a Ho.

V$D$