CarlosTex
Member
I recieved mine, its super cool thanks for a fantastic product![]()
Cheers! Enjoy it mate!
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In the meantime:
payment received by NMaximus and card sent!
Still 7 XT-IDE CF cards available for sale!
I recieved mine, its super cool thanks for a fantastic product![]()
Hi Mike.
Which XT-IDE card are you using? VCF project? Dangerous Prototypes? If your card is a Lo-Tech one, like the ones i'm selling, you have a jumper to change the BIOS addresses between C800h and D800h. I'm sure you didn't really mean C000h since this is the address where VGA BIOS starts.
From what you describe you don't seem to have a lo-tech card, and a lo tech one could be the best option for you. If you want a Lo-Tech card i can sell one to you.
Some clarifications about what i offer:
1 - When i sell my cards with the optional High Density Floppy BIOS extensions i arrange the file so that floppy BIOS starts first at address C800h and XT-IDE BIOS starts at CA00h. Removing the jumper will put the BIOSes respectively at D800h and DA00h.
2 - If i sell the card without HD Floppy BIOS the XT-IDE BIOS will be obviously located at C800h.
As i see it your problem is this: Both the cards are fighting to place its respective BIOS at C800h. Your Floppy controller should have jumpers so that you could change its address to something other than C800h. So you have some options if you get one of the cards i'm selling:
1- I'll sell you a card with HD Floppy BIOS extensions (which will use C800h for the floppy BIOS and CA00h for the XT-IDE BIOS) and you can use a 16-bit ISA multi I/O controller for the floppy drives;
2- I'll sell you a card as above and you remove the BIOS ROM from your existing floppy controller (if your floppy controller is indeed at C800h it may work but not guranteed); I CANNOT GUARANTEE THIS OPTION WORKS
3- I'll sell you a card with only the XT-IDE BIOS included (XT-IDE BIOS at C800h) and you can use the jumper to put it at D800h so it does not conflict with the Floppy controller BIOS;
Either way, you can always reflash the EEPROM if something doesn't work and i can provide you the files or you want to try something different. I really like the XT-IDE CF cards from lo tech as they are compact and work great including a good set of features.
If you want to buy a card send me a PM and we can go from there.
Regards,
Carlos
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I just realised that I haven't dropped a message here about receiving the card.
Card received, thanks Carlos![]()
Card received today after being held by customs fo some reason... Anyway it works great, makes my XT so much easier to use, thanks![]()


OK, let's try something. You seem to have the floppy controller set to port 370h. Please set JP3 to 1-2 position. On the picture JP3 is set to 2-3. The HD floppy BIOS extensions in the card i sent to you are set to port 3F0h. If you set the JP3 jumper on the 16 bit card to 1-2 position the card will be set to 3F0h. Try this please.
Also it might be a good idea to remove the 386 board and test it at least once. But try setting the JP3 jumper on the floppy controller to 1-2 positions first. You might also leave it there from now on. That's the position it should be on anyway if you only have 1 floppy controller.
Actually, JP3 was set to pins 1+2 closed (3F0h) and when I changed it to pins 2+3 (370h) I got no drive activity at all on boot. I did try an alternate 3.5" 1.44MB drive and a new floppy cable - made no difference. So odd that I can boot off of the drive at 720K and the 1.2MB drive is working. I'm stumped.
Mike

Actually, JP3 was set to pins 1+2 closed (3F0h) and when I changed it to pins 2+3 (370h) I got no drive activity at all on boot. I did try an alternate 3.5" 1.44MB drive and a new floppy cable - made no difference. So odd that I can boot off of the drive at 720K and the 1.2MB drive is working. I'm stumped.
Mike
For some reason the HD Floppy BIOS i sent you does not seem to be working on your system, despite working perfectly on my XT clone with a similar setup (also using a 16bit controller). The reason you can boot from a 720k and 1.2MB floppies is because the 86 system BIOS in the IBM 5160 already had support for both 720k and 1.2MB. But because the HD Floppy extensions on the card i sent don't seem to be working you can't get 1.44MB support at all.
View attachment 106650
The picture above is your card on my XT clone. Do you see the Multi floppy BIOS message on your system like on the picture above?
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You also might want to try to use your VTG FA-100 FDC instead. Try taking the 16bit controller off for now, put the VTG FA-100 FDC in. Remove the JP2 jumper from the XT-IDE CF card. This way the VTG FA-100 FDC will use C800h and XT-IDE CF will use D800h.
If we can't get the floppy BIOS on the XT-IDE CF card to work then its probably a good idea to reflash the EEPROM with only the XT-IDE BIOS.
OK, I remove the new multi-function card (put the old one without a floppy interface back in), and removed the JP2 jumper from the XT-IDE CF card. I can now format, boot from, and read/write to the 1.44MB floppy (and the 1.2M drive is still functional. I then rebooted using the CF drive and the boot went fine, and the floppy drives are both functioning. I think that did it. The whole reason I needed to redo the floppy BIOS/XT-IDE is because although it all worked as above, I had pulled a pin out on my old XT-IDE to shift the address; that XT-IDE did not have a JP2 - it only had a JP1. After doing that I began to notice that the CF card would get corrupted intermittently, but it only happened when the 1.2M drive was attached as B: Now that everything is working I'll be happy as long as the intermittent CF corruption doesn't reappear. Maybe the pin bending deal created some sort of instability? I guess we'll wait a few days (the corruption seemed to happen most frequently after the system lay cold for a while).
We're getting there.
Regards,
Mike