Good question. You should start digging through old magazines. Here is one starting link:

https://books.google.com/books/about/PC_Mag.h … id=WwMCsPuGSLEC

4000 USD. That was serious money…

root42 wrote:

4000 USD. That was serious money…

$1K, $4K was with some highend art software

It costed 3100 DEM for version with 3Mb Ram in 1990 in Germany

The wire seems to be original from factory. Most likely they did a mistake in PCB design and found out only after some serious amount of units was already made.

Ok Guys, i found this card http://www.os2museum.com/wp/two-more-tigas/

Wire is factory made so i can check if this card is working or not, i was affraid its handmade repaired And i can burin my motherboard, now i’m cool

Its working fine with 3Mb of RAM

havli wrote:

The wire seems to be original from factory. Most likely they did a mistake in PCB design and found out only after some serious amount of units was already made.

Yup. I heard these were als known as "patch wires". If the mistake was tiny and simple to fix, it was easier to let the assembly person fix things.
Even for medium scale productions this seems to have been a common method of fixing things.
Not sure exactly why, though. Perhaps it was too costly/cumbersome to hold production and change the factory programme.
Anyway, this reminds me of my AST RAMpage 286 (EMS card).. It also has got some yellow wires on the backside. 😀

Edit:@n0m4d Good luck! You can also use Windows 3.10 for initial testing, if you like.
It supports TIGA. Provided, that the card's TIGA "runtime" (interface) was loaded beforehand.

n0m4d wrote:

Hello Guys, i have a question, this wire on PCB is stock or some kind of repair?

Yeah, this was actually pretty common on older boards like this. I have a 286 motherboard with some patch work like this done from the factory.

I think I've even seen PCBs that used wires in lieu of an additional layer, as part of their design, back when multilayer board fabrication was $$$.
This one's clearly a factory bodge wire though. From back when even the factory had a culture of repair. Shout-out to Louis Rossmann.