Gave up trying to get the benchmark to work. Went straight to xmrig 4.2.1.

edit/update: Thanks for the detailed guides in this thread. Using turion and the custom bios for overclocking, was able to get 12.8khs. Very happy.

I am building out another identical setup but after flashing the bios, CPU2 does not working. Meaning, if I take the CPU out of CPU2 slot, it boots. If I put it back in, it doesn't boot. I tried flashing the original stock bios but that didn't help either. No bios beeps, no screen, nothing with CPU2 in. I checked for bent pins but don't see anything. Have you experienced that with any of your work?

For now, I will have to just use 3 CPUs which seems a little like a waste but better than nothing I guess...