XTIDE: not running in 386 computer \ VOGONS

XTIDE: not running in 386 computer

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First post, by Ikesankom

Posted on 2024-11-17, 20:01

Ikesankom Offline

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Rank: Newbie
Posts: 3
Joined: 2024-11-10, 15:43

Hello to all. I am new to this forum. I've been following it for a while and thanks to it I've been able to get drivers, software and information that would be impossible elsewhere.
I wanted to open this thread to see if you would be able to help me.
I have a 386 PC, with an AUVA TAM 25 board, that I found lying in the street and I made some repairs and improvements to it. I'll talk about it in another thread.
https://stason.org/TULARC/pc/motherboards/A/A … 00-M317000.html
BIOS is American Megatrends and CPU is AMD 386DX 25.
The thing is that I bought a board with an EPROM with XTIDE for 386. I tried to make it work in the 8-bit slot and there was no way. I plugged it into the 16-bit slots and it didn't work either. I tried all the memory addresses in the jumpers and no way.

The attachment WhatsApp Image 2024-11-17 at 20.51.59.jpeg is no longer available

I tried removing the chip and plugging it into an ISA network card with the same result.

The attachment WhatsApp Image 2024-11-17 at 20.59.12.jpeg is no longer available

I have used the software called RAYXTIDE and it does not detect XTIDE. The seller sent me a second EPROM and another 74688 logic chip just in case, with the same result. I don't know what can happen. It's funny, because I see threads and everybody seems to be working, but not me. I don't know if I'm doing something wrong or if it's something specific to this PC.
I hope you can help me. Thank you very much in advance!

Reply 1 of 4, by Ikesankom

Posted on 2024-11-17, 20:07

Ikesankom Offline

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Rank: Newbie
Posts: 3
Joined: 2024-11-10, 15:43

I upload again the images with less resolution

The attachment WhatsApp Image 2024-11-17 at 20.51.59.jpeg is no longer available

The attachment WhatsApp Image 2024-11-17 at 20.59.12.jpeg is no longer available

Reply 2 of 4, by majinga

Posted on 2024-11-17, 20:09

majinga Offline

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Posts: 59
Joined: 2022-10-23, 15:39

It can be the video card, or some other card, that try to allocate something in the same address range of the XTIDE.

I had a similar problem on my 386 with a promise EIDE pro and a Cirrus logic videocard.

Try with the minimum set of card possible, check if the XTIDE or the other cards allow you to choose a different address. That may help.

Reply 3 of 4, by Ikesankom

Posted on 2024-11-17, 20:23

Ikesankom Offline

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Rank: Newbie
Posts: 3
Joined: 2024-11-10, 15:43

majinga wrote on 2024-11-17, 20:09:

It can be the video card, or some other card, that try to allocate something in the same address range of the XTIDE.

I had a similar problem on my 386 with a promise EIDE pro and a Cirrus logic videocard.

Try with the minimum set of card possible, check if the XTIDE or the other cards allow you to choose a different address. That may help.

I have already tried removing all the cards, including the disk controller.
And the graphics card because I can't. But I have tried with two different graphics cards.

Reply 4 of 4, by mockingbird

Posted on 2024-11-17, 20:57

mockingbird Offline

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Rank: Oldbie
Posts: 1474
Joined: 2013-06-17, 02:57

When the XTIDE BIOS is not being detected at boot, I found that this is because the EPROM was not flashed properly. When XTIDE is configured, if the checksum isn't regenerated then it won't work.

The way to verify this is to test the card is to test it in a different PC and check if it shows up there.

If that still doesn't work, I have some extra PCBs of an EPROM ISA card that also allows for selecting between 16 different memory addresses but also has a switch for 256kB or 64kB ROMs. Send me a PM if you're interested in one.

(Decommissioned:)

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