Pc extension card identification

[VintageVic]

I could use some identification help with these cards.

card0: perhaps some display adapter? Has two female ports (D9 and D25).
Seems to be missing a couple of chips, and thus probably not in working condition.

card1: ram card, probably up to 256kb

card2: this is easy... serial/parallel card

card3: Quadboard? What is this? Unfortunately also missing ram and a couple of other chips.
Has also varta battery in it that has already leaked and made damage to traces. And also has D25 male
connector.

card4: looks like mfm hard drive adapter. I wonder what capabilities it has... perhaps useful with seagate st 225 drive?

Thanks for any identification help already in advance

 

[VintageVic]

Okay, I already found out about quadboard here:

http://www.computinghistory.org.uk/det/26768/Quadram-Quadboard/

 

[modem7]

Card 0: Looks like an MDA (monochrome) video card, with parallel port.

Card 1: See 'IBM 64/256KB Memory Expansion Option' at [here].

Card 2: See 'IBM Serial/Parallel Adapter' at [here].

Card 3: Quadram Quadboard. See [here].

Card 4: IBM Fixed Disk Adapter. See [here]. Yes, it will support an ST-225.

 

[modem7]

Card 4: IBM Fixed Disk Adapter. See [here]. Yes, it will support an ST-225.

Oops.
At [here], you have what is described as 'Variation #2'.
If an ST-225 was attached (then low-level formatted, etc.), only 10MB of the ST-225's 20MB capacity is usable.
However, all 20MB would be usable if a modified version of the card's BIOS ROM was fitted.

 

[krebizfan]

1) Probably either CGA or Hercules clone card. I can't read the amount of memory which helps determine which video it outputs. I think it is complete with empty sockets and pins to perhaps add joystick and maybe light pen(?) to it. Lot of variations on these cards and I don't know all of them.

2) That is the IBM memory expansion card. Minuszerodegrees has documentation for it.

3) I hope it is set to sensible parallel and serial port values. Trying to solve the switches could take a long time.

4) Quadboard. Probably complete with the empty sockets just there to bump the memory from 256K to 384K and add game port. Minuszerodegrees has the correct manual and I think has the drivers for the runtime clock. Battery will need to be replaced.

5) MFM or RLL card. I think it has its own ROM so it will support more than just one or two drive models.

Ah well, I guess I was too slow out of the block.