About a month ago I've got a 386/486 motherboard off of eBay. It was sold as dead (typical NiCd leak).

https://theretroweb.com/motherboards/s/auva-c … -p8-cpm25-p8-cp

At first it was always stuck in reset, but I've come so far, that every voltage rail is working perfectly. I'm also using one of those POST analyzer cards, a DMM and oscilloscope. What I've done and achieved so far:

• Repaired and reinforced traces (included some dremeling)
• 12V, -12V, 5V and 3.3V LEDs are all lit on the POST card
• All crystals generate good and stable clocks
• The board goes out of reset and the CPU (Am386DX 40) and 82C206 chip next to that one 8 bit slot are getting moderately warm
• Put keyboard controller and BIOS EPROM in (new) sockets (there were also some corroded vias under them)
• Put in 128 KB of cache (the board came without any cache installed) and set jumpers accordingly
• The electrolytic caps near the keyboard connector were partially swapped out by the previous owner and by me

What I get now are 10 short beeps and the last codes are 0C 0D. What can I do next?