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The XL-7 TURBO 8088 XT build

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Reply 20 of 26, by Predator99

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Vynix wrote on 2020-03-27, 21:29:

Yes should work, though you may run into some problems with the BIOS not handling well the 1.44M FDC 😀

The IDE port won't work, obviously, but that doesn't really matter.

XT-IDE supports IDE with a 16-bit controller card in a XT. Works perfectly.

"- 16-bit ISA IDE in 8-bit mode Allows to use 16-bit IDE controllers on XT systems. This will require drive that supports 8-bit transfers (CF card and Microdrives all support 8-bit mode)."

Reply 21 of 26, by computerguy08

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Predator99 wrote on 2020-03-28, 08:27:

XT-IDE supports IDE with a 16-bit controller card in a XT. Works perfectly.

Isn't the IDE header connected on the 16 bit bus (the shorter finger), which is disconnected in a 8 bit slot ?

Reply 22 of 26, by xtgold

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true
the controller has to be an 8 bit card with matching bios.

Reply 24 of 26, by xtgold

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I have 16 bit mfm cards that don't even have a bios.
none of the 16 bit ide/floppy cards I have has a bios.
They relied on the 286 bios

Reply 25 of 26, by Predator99

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computerguy08 wrote on 2020-03-28, 08:57:
Predator99 wrote on 2020-03-28, 08:27:

XT-IDE supports IDE with a 16-bit controller card in a XT. Works perfectly.

Isn't the IDE header connected on the 16 bit bus (the shorter finger), which is disconnected in a 8 bit slot ?

Yes, indeed. But with the XT-IDE-Bios only 8 bits are used. No need to get a 8-bit controller for a XT.

Reply 26 of 26, by Predator99

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You have some spare ROM-sockets in your board- Put a XT-IDE in it and try 😉