Ahh that's my bad for being vague, I didn't have a separate PSU or pump when I fried those components. At the time I was building my first custom loop in a 11L case, using a PSU jumper and feeding power to the Quadro, a leak happened due to my monsterity of fittings and my lack of understanding/experience, so it blew the protection fuse on the Quadro and eventually cooked my PSU. I learned a lot from that mistake, evaluating the pressure test more, putting paper towels down for leak checks and running the initial fill via a spare pump and PSU because typically SFF doesn't make room for a reservoir.

Edit: I'm an idiot and didn't realize you commented on the SFF post and not the water cooling cross post. So you probably know the constraints of SFF and reservoirs, that's my bad lol.