I've been using my sig rig for the first time in a while tonight (mostly because my "office" at home is freezing during the winter) and I figured I'd have a look at the general temps / fanspeeds: mostly because I'm planning on putting the rig under water in the summer and I was interested to know what kind of temps I was looking to get it down from.
Now, I've not been doing anything stressful with it tonight - pretty much just some web browsing - and when I fired up ASUS PCProbe (apparently the only monitoring software I got round to installing) I noticed that I was getting a fan speed reading for the PWR fan. TBH, I couldn't remember connecting the PSU fan to a header, but I figured I'd have a quick look, dipped under the table and flipped the side off my case. Sure enough, there was the header from the PSU connected to the motherboard. "Good stuff" I thought, and sat back on my seat: at which point I noticed that my CPU temp had dropped 7 degrees!
So, ever the scientist, I decided to conduct an experiment and put the side panel back on. As I type this, my CPU is sitting at 42 degree, mobo at 40, CPU fan at 2070. I will now remove the side panel again...
leaving the case under the desk as normal, the CPU drops to 38 degrees, 1800rpm in 30 seconds, but then stays there.
Moving the case round so the open side faces forwards (i.e. into the room) and within a further minute the CPU has dropped to 32 degree, 1650rpm. And it's still dropping...
So, does airflow in a case really matter? Yes! and potentially by as much as 10 degrees!
I was already planning to mod this case for a different build, but I might do it earlier just to see what different a couple of big fans can have to what must otherwise be a very poor case for airflow...
p.s. as I finish typing, another 2 minutes after the last set of readings, I've just tipped below 30degrees. The side stays *off* this case !!!


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