Manual/jumper settings for a 16-bit ISA IO controller with GJ COMBAT 90C50 Chipset \ VOGONS

Manual/jumper settings for a 16-bit ISA IO controller with GJ COMBAT 90C50 Chipset

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First post, by FrankCZ

Posted on 2026-01-10, 14:10

FrankCZ Offline

Rank Newbie

Rank: Newbie
Posts: 1
Joined: 2026-01-10, 13:43

Hi all,

I am trying to use this ISA IO controller with the Trang Bow/Trangg Bow 80386SX SCAMP motherboard (https://theretroweb.com/motherboards/s/trang- … g-80386sx-scamp), but I was not successfull in finding a Jumper manual for this card.

So far the connected 1.44M floppy works with the controller, but it is not able to detect IDE drives.

I am attaching pictures of the card with current settings.

I am aware of the COM1/2 IRQ settings and I guess IRQ5/7 sets the LPT. The other block doesn't look similar to any other cards I already have 🙁

The only markings i could find are:
GJ 90C50, COMBAT, 9137
Warranty void sticker on the back with company name CHIRON

Any help would be greatly appreciated.

Thanks everyone in advance.

Frank.

Reply 1 of 1, by Matth79

Posted on 2026-01-10, 14:48

Matth79 Offline

Rank Oldbie

Rank: Oldbie
Posts: 827
Joined: 2014-05-19, 14:24

I think you have to go fishing with Checkit or Sysinfo, watch for the COM port addresses as that will tell you if the jumper you moved was a COM port address... one at a time, you want to pick up that something changed

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