(I hope this is the correct forum category)
I picked up a Dell T3610 for free recently. Threw in a new cheap GT1030 GPU because the server itself doesnt have a monitor output. I attached an SSD. Fired it up and couldnt get a picture. I removed the battery for a few hours. Jumped the RTCRST...
It's very simple. I completed my first build about a year ago. it also took me about 2 hours the first time. 3 builds later, I can do it in half the time. Just screw everything in place and then plug everything together.