oblivion
Veteran Member
I recently picked up an NCR 286. It's virtually identical to the one in this VWestlife video
The only difference is mine has a header for an external battery and the case badge is different. Unfortunately when mine powers on I get 5 short beeps and then nothing. I tried looking up the code but it looks like it uses an NCR BIOS so I didn't find any chart for my particular machine. I tried removing the dead lithium battery and installing an external battery, tried replacing the CPU with a known good working 286/12, and tried different discrete ISA VGA cards but same error. There is a switch box and a few jumpers on the board but everything looks set as it's supposed to be (there is a jumper/switch guide on a sticker under the cover). I played around with the jumpers and switches anyways just to be sure but no difference. At this point, I'm wondering if maybe the 1MB soldered on RAM or some other chip is bad. any suggestion?