No, no pets; no A/C. We live in the North, so no A/C = windows open about 3.5 months/yr. I have cleaned dust off many things in my life, and I have to say that adding any sort of cleaner or water is a mistake. It would leave dried on residue that will never come off, and the buildup will be much harder to remove the next time. It was very easy to remove and took less than 1/10 can of "air." My system is set up W/exhaust upward, so the lint comes off downward, without the need to remove the radiator, I just blew the "air" downward all over real quick, then began working on lateral blows. It was harder to remove all the bunnies from the other areas of my case than it was to remove from the radiator. TG I didn't install the screws where the VRM was in the way - it made it easy.
I suppose after a few years a brush might become necessary, to get the harder to clean off residue - I have seen this on window screens and window fans. And that's how I know not to use liquids, I made that mistake on fans and window screens.
As for the temp differences: Before cleaning I was getting 87-76 peak @ 4.6GHz, after 77-68. I also rotated my CPU block, W/the hoses on top, and I think this is the reason the disparity between cores dropped a little. But since my AS5 has not cured yet, it is also possible that my temps will drop another 1-2C when that happens.
Anyways, I finally made 4.7GHz stable after I mounted these dual 2200RPM 60mm Kingston HyperX memory fans to VRM area:
Temps 84-75 peak, ambient 75-76F. 159.6Gflops. I am not necessarily done OCing (again) yet. But I doubt I will get another multi out of it stable without VRM downclocking.
i7-3930K; Asus RIVE; G.SKILL Ripjaws Z 4x4GB DDR3 1866; MSI 7870 2GD5/OC; Crucial M4 SSD 256GB;
Corsair 1000HX; Corsair H100, 4x Excalibur 120mm PWM CPU Fan p-p, AS5; SB X-Fi Titanium Fata1ity Pro;
Dell U2412m IPS 1920x1200; Cooler Master HAF 932 case; Tripp-Lite OMNIVS1500 UPS fully Line-interactive.
(EVGA site: )
And I have a second (wife's) computer,
Eve.Overclocking is useless to me if it is not rock stable.