no idea really, before You buy - acid damage from left to right - that's a no go

I am not worried about acid damage , I'll just spend some time and fix it. I am more worried from lack of documentation 😀

Fast googling after spotting acer marked chip gave me dis:

http://minuszerodegrees.net/xt_clone_bios/xt_clone_bios.htm

Motherboard: labelled 'SUPER 10-B1'

Yes I have found the B1 bios site, what would be more interesting is the jumper block setting. I have also found some B1 pics online, main difference is a variable cap on the xtal1 position, B has a fixed one

Is it just me or is that board limited to 245kb of ram unless you solder more sockets on?

Tried search in TH99 archive without luck,so best i found is topic about bios,the good that it was bumped after seven years,last time in 2015 and there at least 2 owners of this mobo on the forum

http://www.phantom.sannata.ru/forum/index.php … um_view&o=&st=0

@kanecvr
the pictured mobo has full 640kb , maybe the extra sockets where used with lower capacity ram ICs

@rein_ein
thanks for that, checking it but I don't recognize any nicks from here - what am I missing? 😁

as per the Russian thread the mobo might be similar to this: http://www.uncreativelabs.de/th99/m/U-Z/33682.htm

my bad

edit:

*on their forum*

ah, no problem rein_ein - still I got some leads 😀
are they still searching for the BIOS? Or google translate is way off?

My guess is that the 8 DIP switches are the same as found on an IBM XT, and configure things like drives, video and memory.

keropi wrote:

as per the Russian thread the mobo might be similar to this: http://www.uncreativelabs.de/th99/m/U-Z/33682.htm

Your board seems to be a revised, more modern version of the one on the link. In fact it seems to accept 44256 RAM chips. Also on your board JP5 is on a different position, and headers are rearranged compared to the older version. For your board, JP3 is for Turbo Switch and LED, JP4 for Reset and JP5 for Power LED and Speaker.

DIP switches you can follow the info on that page. Should be pretty much the same.

I have the board pictured below, obviously a newer one than Yours based on the F revision.

^ do you have any documentation?

This is all I could find

http://stason.org/TULARC/pc/motherboards/U/UN … -MAINBOARD.html