VOGONS


First post, by Ymsi

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Hi.
I have the WD-93038 hard drive
photo-2018-11-09-19-03-26.jpg
And controller-card for it
photo-2018-11-09-19-03-27.jpg

And it work/boot fine. But very often appears "Seek Error".
I had correcting this error on the mfm hdd by LLF.
Is it possible to fix this error by LLF on XT-BUS drive?

Reply 1 of 3, by Jo22

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Hi, I've found some information on your fixed disk. 😀
It seems to be a WD93038 series drive with XT-IDE interface.
An XT-Bus hard disk, so to say (since IDE drives were originally called AT-Bus HDDs).

According to one of the links, there used to be an "IDE SUPERBIOS program for low-level formatting".

"Use the IDE SUPERBIOS program to perform a low-level format of your
drive. The WDXT140R or WDXT150R adapter card contains the IDE SUPER-
BIOS program. If you have an XT compatible with a drive interface
connector on the motherboard, it must provide a SUPERBIOS program. Do
no use the IBM Advanced Diagnostic Format Option.

The low-level format is performed just once for each physical drive.
When you dynamically configure a drive as two virtual drives
(partions), perform the low-level format only on drive C and the run
the DOS FDISK and FORMAT utilities on both logical drives (C and D)."

Links:
https://www.youtube.com/watch?v=_Xe9_lZPMnQ
https://stason.org/TULARC/pc/hard-drives-hdd/ … -HH-IDE-XT.html
https://computerpreservation.ecrater.com/p/23 … tal-30mb-xt-ide

Edit: Just remember something. Compact Flash cards support 8-Bit transfer modes, too.
If I remember correctly (better check), they were said to be XT-IDE compatible.
Not that I encourage you to not continue to use your old disk. I just thought knowing this might useful for testing.

"Time, it seems, doesn't flow. For some it's fast, for some it's slow.
In what to one race is no time at all, another race can rise and fall..." - The Minstrel

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Reply 3 of 3, by Ymsi

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And answer is YES.
The formatter sits in c800: 5 is most like the MFM controllers.
Seek error is totally vanished.
But there is one problem, when I dynamically configured the hard disk, it did not boot from it.
If this is not done, the controller itself configures the disk by default.