Originally Posted by orndorf77
I had my corsair h100i for a little over a month and I must of remounted it 20 times trying different thermal paste . and the lowest temperatures I have gotten on my stock speed i7 4770k with prime95 100% load test running for 15 minutes is 67c . that is with using gelid gc extreme thermal paste . today I will be receiving tuniq tx-4 thermal paste and I will be remounting my corsair h100i again . some one on this forum said that to get better temps I need to add extra washers to the back plate . is this true ? is there room on the pins that go threw that back of the motherboard for washers ? and what size washers should they be ?
What does the thermal paste look like when you remove the H100i block? Ideally, you want something that looks like this when you remove the block:
On the other hand, if you see something like this on your CPU, then your H100i is making very poor contact:
The H80i and H100i seem a bit prone to making bad contact because of the design of the bracket. Unfortunately, some motherboards are a bit thinner than others - in these cases the thumb screws will bottom out before the H100i block is fully seated. If that's the case, you can try the washer mod to see if that improves things. It basically makes up for the thinner motherboard and makes much better contact with the CPU. You can read up a bit more on the washer mod here
. I had a H100i briefly and had to do this on my board - it ended up dropping CPU temps about 10 degrees so it was a big help.
Having said that, if the H100i is indeed making good contact with your CPU, then the washer mod won't do much to make things better.
One other thing you should be sure to check is that you have the back plate oriented correctly. There's a slight cut out for two of the screws on the back of the CPU socket like below:
If you have it turned the wrong way it may cause issues with how evenly the H100i contacts your CPU.
I hope this helps!