Hello LTT members! Long time lurker here.
I have two 670 FTW's in SLI and I feel like my idle temps are a bit too high. 40-43 C is what I get at idle. And before you ask, I did dust the hell out of both of them. They are running at stock speeds, no overclock, no kboost. I was considering to take them apart and re-apply thermal compound. I was told MX-4 was a good choice. My airflow is really good. I have a HAF X. One front intake, one side intake one rear exhaust and two exhaust up top on my radiator. My CPU is water cooled. My cable management is pretty good. I live in California were the weather is not too hot so it shouldn't be high ambient temps. Also, the air coming out the rear exhaust goes directly outside through a open window.
Any help would be great, thanks.
This is my first GPU. The hotter one is the second one.