Installing a 4 Gb Maxtor HD on MSDOS 6.22

March 7, 2013 at 09:41:59
Specs: MSDOS 6.22, Intel 486 / 4 Mb
Such an old post, but gave me some hints.

I have an old HP Vectra 486. The original Maxtor drive (211 Mb) died and I had to install a 89 Mb Seagate drive. According to the computer's BIOS, it should recognize even 8 Gb drives. I have a 4 Gb Maxtor drive, which contains Win98 and can also be configured to look as a 2.2 Gb unit. I would like to use it as a slave.

MSDOS 6.22 apparently sees the drive as a 512 Mb unit at FDISK window . But FDISK also says "unable to access drive 2", and cannot set up a partition.

I will try to format the big HD under SUSE Linux 12.1 to FAT16, previously creating two or three partitions. Then install it back in the 486.

Ò_ó


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#1
March 7, 2013 at 09:50:38
MS DOS is limited to partitions of max 2 GB due to FAT16 structure. So partition your HDD accordingly and beware the boot master partition must be C:

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#2
March 7, 2013 at 09:51:21
MS-DOS doesn't work with partitions greater than 2.1GB. You should be able to get it to work with both a 2GB drive "C" and a 2GB drive "D"...

"Channeling the spirit of jboy..."


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#3
March 7, 2013 at 21:47:36
Are you sure the bios can see up to 8 gig? The 512 meg you mention is about the maximum most pre-pentium bios' will see. If the bios actually can see up to 8 gig then you probably have the drive configured wrong in cmos/bios setup. You may need to manually enter its C/H/S specs.

The 'configured to look as a 2.2 Gb unit' aspect is probably a cylinder limiting jumper which would be used on systems with older bios' that can't see a drive that size. Then you'd install a drive overlay to use the drive's entire capacity. You don't want that feature enabled unless your bios can't properly see the drive.


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#4
March 8, 2013 at 19:14:08
DAVE's got a point. Most 486's had a BIOS limitation of approx. 540/512MB (my first one did). Either an overlay or a independent IDE card was used to bypass those limitations.

"Channeling the spirit of jboy..."


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