New Find :-)

[Brian]

That got to be a GVP Impact 030 card, rev4 I belive by the color and 40Mhz clocked CPU, wonder if an FPU is under the shield. Bord labeling should be above the top memoryslot.

[Brian]

It'll have to be a wild guess to what the board is that's connected to the motherboard but I have a sneaky suspicion it's a 2MB chipmem upgrade of some sort.

2 intereting things to find out is if it's 1 or 4MB thats soldered to the Impact card. Normaly for a 40Mhz (and 50Mhz) card it would be 4MB but seing that the jumper for setting 40Mhz is of a different color it might be an upgraded/overclocked 25Mhz card with just 1MB. Next is if the SCSI works on the Impact card, if it does I'd use that SCSI instead and sell the Supra card. Less power needed and you could get some $ in the pocket.

Please concider removing the Supra card and take some highres pictures of it from both sides to submit to AHwDb and BBoAH as they seem to be missing pictures of this board.

[Brian]

Ya, with the new picture it's clearly a A2091 and not a Supra controller.

I'd drop the A2091 off on Amibay and use the SCSI on the GVP card if it's working since it should be faster and allow you to map the 32bit fastmem outside Z2 space to free up some of that Z2 adresspace for something else. Right now the GVP memory seems to be jumpered in Z2 space, probably to have some fastmem in Z2 space for the A2091 not to resort to PIO crawl mode (this would also indicates that it's likely just 1MB and not 4MB GVP memorysticks installed).