Use a POST card from userspace

Okay. This time my small server got screwed up. Totally. segfaults at no apparent reason, lags, and finally the PC not starting at all. Since ssh was down, I had to debug using a UART and a POST card (No monitor in the closet where it stands usually). In the end I had to take the small thing out of its place to the table. A detailed analysis showed up that it was the RAM. Luckily I had a spare 2 GiB chip around and popped it in. However, while troubleshooting it, I hooked the POST card…
The last thing gave me an idea. Not sure if that was done before.