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Cooling experiment(Click here to view the original thread with full colors/images)
Posted by: Shurik
Now that I have the huge volcanoe 12 cooler from Thermaltake, I've noticed that because it's so big, it is located almost adjacent to my exhaust fan, which is much less powerful. Thus, I figured that hot air was being trapped inside my case and causing hot air to be recirculated throughout with little air escaping.
What I did was get some cardboard, measure all the distances between fans, heatsink, etc., and make a bent rectangular pipe out of it. One end of the pipe, I attached to the exhaust fan, and the other to one side of the heatsink where the hot air comes out. This way, the 2 fans are no longer conflicting for air, but instead working together to get cool air to the CPU and expel the resulting hot air from the case.
I also made a hole in the side window of my case positioned just above the CPU fan with a dremel and mounted my old CPU fan on the outside of the case over the hole. This allowed for cooler air from outside to go straight to the CPU, thus lowering temperatures.
As a result, my computer now has more in common with a wind tunnel, and I lowered the CPU temperature to 36C idle/39C busy: a great improvement from my old 45C/47C. But I also noticed that the motherboard temperature went up about 2 degrees; probably because everything now has to go through the CPU fan to get to the exhaust fan and out. I need a larger case so I can have 2 exhaust fans 
To me, it never made sense why on all mobos, the CPU socket is at the top. I mean, if it was at the bottom, it would get cooler air and the exhaust fan at the top would suck out the hot air produced by the CPU.
Posted by: ArcticRaider
Pics?
Posted by: Shurik
Sure. In 2 weeks
Posted by: ArcticRaider
Posted by: Shurik
It looks somewhat like this:
Posted by: ArcticRaider
Cool.
I might try something like that myself. Looks like my fans are fighting for the air too.
Posted by: Shurik
Well, I do have one more question: Would reversing the intake fans and making them exhaust fans instead lower the mobo voltage? Or perhaps just using one intake fan instead of 2 so there would be time for the air to exit with only 1 exhaust fan?
Posted by: SL!PPy
quote:
Originally posted by DaedalusXXX
To me, it never made sense why on all mobos, the CPU socket is at the top. I mean, if it was at the bottom, it would get cooler air and the exhaust fan at the top would suck out the hot air produced by the CPU.
Now that's one of the reasons they developed BTX (Balanced Technology Extended) 
CPU @ the bottom of the board, I'm not sure this new standard will make it.
For these mobo's you also need a case that supports BTX
Posted by: Shurik
Yeah, that's what I was thinking: Why can't some case company just make a case where the motherboard is positioned upside down with the cards at the top and CPU at the bottom?
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