So I have this Compuadd (Also known as Standard Products?) 286 motherboard, and I've at least got it booting into DOS with a XTIDE. However, it's not recognizing Bank 1 of the DIP 41256 drams. After leaving it running for awhile, Bank 0 is warm, but Bank 1 is at ambient temp. I'm pretty sure it's a jumper or dip switch setting, but I can't seem to make any progress. Tested all of the DRAM chips, they appear to be fine. Toned all of the traces, looks good. I do not have a scope however :/ . There was a user on these forums selling the actual board like 11 years ago, I'm going to reach out to him but chances are slim he has any info.
There's a 6 position DIP on the top left of the board and a few jumpers near the chipset, but moving those around either has no effect or makes it unbootable. You can also specify the amount of memory in the BIOS (Award 3.01) but after saving and restarting, no joy.
Here's the actual board on TRW: https://theretroweb.com/motherboards/s/compuadd-inc-286-20-model-216
There's a 6 position DIP on the top left of the board and a few jumpers near the chipset, but moving those around either has no effect or makes it unbootable. You can also specify the amount of memory in the BIOS (Award 3.01) but after saving and restarting, no joy.
Here's the actual board on TRW: https://theretroweb.com/motherboards/s/compuadd-inc-286-20-model-216
