The card says AB-757VL on it, but so far I could only find FCC information
TH99 seems to only have really similar cards, I hope someone can help me with jumper settings, the floppy drive is disabled but I don't know where that option is set
The FCC ID came back with this:
" FCC ID › Ambition Technology Co Ltd › AB-757VL
Application: Vesa Local Bus Serial/Parallel Interface Card
Equipment Class: JBP - Part 15 Class B Computing Device Peripheral
Alternate Sources: FCC.gov | FCC.report
Registered By: Ambition Technology Co Ltd - I7E (Taiwan)"
Most Windbond 83757 based controllers should have near identical jumpers. Will search more later, have chores to do.
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun
Horun wrote on 2020-07-08, 23:49:The FCC ID came back with this: " FCC ID › Ambition Technology Co Ltd › AB-757VL Application: Vesa Local Bus Serial/Para […]
The FCC ID came back with this:
" FCC ID › Ambition Technology Co Ltd › AB-757VL
Application: Vesa Local Bus Serial/Parallel Interface Card
Equipment Class: JBP - Part 15 Class B Computing Device Peripheral
Alternate Sources: FCC.gov | FCC.report
Registered By: Ambition Technology Co Ltd - I7E (Taiwan)"Most Windbond 83757 based controllers should have near identical jumpers. Will search more later, have chores to do.
I found the FCC ID but I did not know that about winbond controllers! Im just worried about looking at another card and causing a disaster because the JP8 for one means something completely different to JP8 on another
kalohimal wrote on 2020-07-09, 01:10:You can try your luck finding it here.
I already tried th99, but this site looks different,
Does it have any cards that the standard th99 doesn't?
Not sure if this would help. I have a Promise DC2000 VLB disk/super i/o controller with the same Winbond W83757F chip. But this chip is the super i/o controller for floppy, serial, parallel and game ports. It has another Promise PDC20230 chip for the IDE port, which your card doesn't have. The 2 long jumpers block at the center of your card should be for the super i/o, and the J15-18 are probably for IDE transfer rate.
Slow down your CPU with CPUSPD for DOS retro gaming.
Yes it is more like a ISA IDE-I/O card with just a single Winbond chip, all of my VLB also have at least two surface mounted controller chips. It is similar (but different) to the Kouwell KW-556N in that just one controller chip is present, the 83757 does support one IDE port but not bus-mastering AFAIK. So it would be a very limited VLB IDE controller. Pic of one version of the 556N: https://live.staticflickr.com/65535/495083821 … d8aae1912_k.jpg
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun
Btw the datasheet for Winbond 757 chip is available. So with a multimeter and some patience, you could probably trace out the jumpers. Pins of interest would be those going into the "config setting" block.
https://pdf1.alldatasheet.com/datasheet-pdf/v … OND/W83757.html
Slow down your CPU with CPUSPD for DOS retro gaming.
kalohimal wrote on 2020-07-09, 03:32:Btw the datasheet for Winbond 757 chip is available. So with a multimeter and some patience, you could probably trace out the jumpers. Pins of interest would be those going into the "config setting" block.
https://pdf1.alldatasheet.com/datasheet-pdf/v … OND/W83757.html
I tried checking FDCEN but it doesn't seem to go anywhere 😒
So I also have this card actually! I too, couldn't find anything on it yet and since it doesn't support LBA I'll likely switch it out eventually for something better. (Using an XTIDE rom on a NIC right now as a stopgap)
I've figured out some of the jumpers via trial and error and some I have at least a reasonable guess on.
J4 ?
J8 COM1 1-2 enable 2-3 disable
J3 ?
J11 COM2 1-2 enable 2-3 disable
J7 LPT1 1-2 3BC 2-3 378
J2 ?
J10 ?
J6 LPT1 1-2 enable 2-3 disable
J9 ?
J5 ? (might be IDE disable) 1-2 enable 2-3 disable
J1 ? (might be FDD disable) 1-2 enable 2-3 disable
The upside to seeing your card though was that the silk screening on yours is much better I can could actually identify the jumper numbers I was missing.
