mockingbird wrote on 2023-10-02, 13:30:

Intel486dx33 wrote on 2023-09-30, 07:24:

Yes 420mb was the hard drive capacity limit back in 1993 motherboards bios and Win3x drivers.
I am using a Cirrus logic x5429 VLB controller and and the default driver limit is 420mb hard drive
I don't know if there is a newer driver some where ?

I did 2GB partitions on my 486 (VL/I-486SV2GX4) with a VLB IDE card and DOS 6.22 without issues... I could have used larger partitions, but I wanted to stick with DOS 6.22 for Windows 3.xx compatibility.

Wait what? Can DOS 6.22 handle bigger than 512 MB partitions?

aries-mu wrote on 2023-10-02, 13:33:

Wait what? Can DOS 6.22 handle bigger than 512 MB partitions?

Yes, partitions can be up to 2 GB.
Total disk space is limited to 8 GB.

Grzyb wrote on 2023-10-02, 14:04:

aries-mu wrote on 2023-10-02, 13:33:

Wait what? Can DOS 6.22 handle bigger than 512 MB partitions?

Yes, partitions can be up to 2 GB.
Total disk space is limited to 8 GB.

Oh wow, my memory fails me! 😳

But, are you talking FAT16 or FAT32? Should be 16, since I don't think DOS 6.22 was FAT32-capable, right?

And what do you mean Total disk space 8 GB? Among all the partitions per every single drive?

Thanks

Oh and wait, what about the BIOS? Cyl, Head, Sect, drive type settings? Thanks again!

aries-mu wrote on 2023-10-02, 14:08:

But, are you talking FAT16 or FAT32? Should be 16, since I don't think DOS 6.22 was FAT32-capable, right?

FAT16 supports up to 2GB partitions.

Any size limitations that are lower than 2GB are BIOS limitations on the HDD size. And even those limitations can be bypassed by using drive overlay software.