I've got to say this thing has given me the most issues of any pc component Ive ever installed. I probably should have checked to see if the pump worked before installing but with something that costs this much and from a respected brand I didn't think twice. After many attempts to get it to post I finally got into bios and noticed very high temps. I ended up having to put my old air cooler back on and plugged the cooler up and tried to find the issue, after much shaking and some light taps I got it working. It occasionally seems to cut out but for the most part it seems to be breaking in. Has anyone else experienced pump issues with their Corsair water coolers? My i7 2600k seems to be anywhere from 43-50c when playing a game. I hope I don't continue to have issues with this thing. Oh on a side note my pc will not post with 16gb of ram now which is weird because I didnt do anything to it. It only starts up with 8gb of ram. Both in the blue slots on my WS Revolution p8p67 motherboard. Edit I seem to have fixed the ram issue moved 2 of the ram sticks around and it finally booted with 16gb