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Active MOSFET cooling? - Page 2

post #11 of 12
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Quote:
Originally Posted by gildadan View Post
My thoughts are why not mount the rad to the top of the case where the 140 is now. Then put the fan at the back of the case as an intake and redirect some airflow down to the vrm hs. This could be done cheaply with some plastic I am sure. It might look a little ghetto but you wanted cheap and you could do that without spending anything I would think. Other option would be to do like I said and instead of building a duct get another little fan to do the job for you.
That's one thing I didn't consider, the downside is that even if I do a perfect job with the plastic "airduct" and it's completely airtight that my static pressure is going to go down, which is important when you're dealing with radiators. I could always mount a more powerful 120mm as an intake if needbe.

I guess I'll see how things go with my new fans (should get here wednesday, so sad I need to wait ;_; ) and summer, probably won't need to crank on the AC for a while... 88 today but 57 high tomorrow, next highest temp in the next 5 days is 62. Crazy huh?
Edited by dkf295 - 4/10/11 at 11:25am
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post #12 of 12
Thread Starter 
Well, I got my fans and despite a couple headaches my MOSFETs/sink seem to be a fair amount cooler.

What I got: 1x 92mm fan. 1x 120mm fan, 1x 140mm fan

What went wrong:

1. Two of the screws I used to mount fans to the radiator stripped the threads in the radiator itself and I absolutely COULD NOT get them out without significantly damaging the radiator. Cut off as much of each screw as I could, still a nice seal with 3 screws on each side.

2. The 120MM fan I was going to have blowing on my MOSFETs was terrible.

What I did:

1. Moved one of the two fans I had mounted to my radiator to the outside of the case. No decrease in performance = happy me!

2. Was pleasantly surprised to find that the 140mm fan I bought to replace my case's stock 140mm fan (top exhaust) was a significant improvement over the stock fan. Woot!

3. Since the 120mm fan I got did absolutely nothing, I decided to mount the 92mm fan to the ventholes on the side of my case, blowing on the MOSFETs. I was just barely able to fit the 120mm fan in my two spare 5.25" bays. It really doesn't do much I guess every little bit helps.

MOSFETs are quite a bit cooler, I'm pretty sure I can live with my case the way it is now. Thanks for the advice all!
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