Hi guys, it's been a while since I've been here.
I just bought an H100i and for the most part it's been great. However there are a few concerns that I have about the cooler. First, the pump makes a grinding noise at low RPMs when it's starting up. It only does it for about 10-20 seconds, after that, the pump is silent. It only does that on cold boots.
My second concern is that my idle temps are a little high and fluctuate quite a bit. Now, my room is a bit warm, I'd say about 78F-80F, and my CPU idles anywhere from 37C - 47C while fluctuating between those numbers greatly. Is this normal? If not, is it innocuous? When on load, my temps do not exceed 62C on a 4.5 GHz overclock.
I bought the cooler last Thursday and I have 15 days from the time of purchase to return it to the store. I'd rather get a replacement immediately than go through the RMA process. Even still, I'd rather not take the thing down....it was a bit of a pain to put on, if all this is innocuous.