Hey everybody

I just grabbed a used SP20 off of eBay to add to my rig and I've encountered a bit of a problem. When I wire everything up and turn on the power the fans spin up but there is no response beyond that. No network connection, no status lights.

I've tried an SD card with both the recovery and boot images, but no luck. It feels like the control board it the source of the problem, but I wanted to ask if there's anything I've overlooked. Thoughts?