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Airflow

erek

erek

8=D
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Joined
Dec 19, 2005
Messages
18,270
do you guys agree with this guy on the airflow?


IMG_0030_thumb.jpg

Air gaps from Dell's stock setup of heatsinks

Now this was something I was not happy about. There is a large gap from the left fan (fan 1) to the CPU's heatsink from before. Then there was now a gap between the CPU and GPU's heatsinks. You can see in the picture above the screwdriver that is clearly visible (click the image for the full-res version).

In my history of custom cooling back in the 80s and 90s, there is one thing I learned that always remains constant: airflow is key. So my task would be to modify the airflow to force all air through the heatsinks by not allowing any to escape the airflow path through any gaps.

IMG_0031.jpg

Aluminum Foil Shrouds
I accomplished this by using a few pieces of kitchen aluminum foil, scotch-tape, and additional AS5. There are multiple reasons for this. First for safety I evaluated the entire area and found no electrical components or circuit boards anywhere near this area. You do not want a piece coming loose and short-circuiting things!

Second is having aluminum foil allows the heat to transfer from one copper pipe to the other (just a tad though, too thin really to do a massive amount). That may not have been the best idea at first because CPUs usually run cooler than GPUs from my overclocking experience. But considering how freakin' high my CPU temps were before I even began, I could only see this as helping to offload some heat to the GPU's heatpipe - even if just a tad amount, anything had to help.

I also closed down the air escaping on the left side of fan's outlet to the CPU's heatsink, as well as the gaps between the two heatsinks. Now all air is forced by the fan trough the CPU heatsink, and then through the GPU's heatsink where it than only has room to exit the back vent.
Click to expand...
 
generally yes, but i wouldn't think it would change temps that much. Does he have a results post?
 
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