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Rear Exhaust Fan Placement?

post #1 of 17
Thread Starter 
Gah, I'm slowly breaking into the "Computer Harware World", just installed an 8600gts in my computer, and well, the case is hot <-- kinda like that...

I'm running a
Dell XPS 400
XFX 8600GTS and I'm going to adda Thermalright v2 along with a 80MM fan in the next week or two (do i put the fan pushing air onto the card or sucking air outa the card?)

I need to know where to stick an additional exhaust fan. I plan on just zip tieing on an 80mm fan blowing out since dell cases suck and doesn't give anywhere to mount.




Theres 3 spots on the back end where I can stick the exhaust fan. At the top, in the middle, or at the bottem just above the card. All attached via ziptie to the back grill.
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post #2 of 17
Just stick it in the middle, should improve things a bit.
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post #3 of 17
Quote:
Originally Posted by moward View Post
Just stick it in the middle, should improve things a bit.
agreed. I bought a XPS420 a while back. I replaced the graphics card an power supply and had so many problems with the machine. Soon after I spent about $150 on a new motherboard and heatsink, and about $80 on a case. (I bought a new motherboard since this dell motherboard is locked, so there is no overclocking options, and it is only compatible with the products they put in that computer). I transfered all of it to a new case on the new motherboard and was alot happier. Like you said dell cases suck. The most problems i had was with the case, it was very small and poorly ventilated, and i couldn't close the case without unplugging the power cord to the hard drive. I suggest doing the same as I did if you have the 250$ to spend. The XPS420 is a good machine except for the graphics card(which you already replaced), case, and the motherboard is locked.

Also the fan on the graphics card pulls in then vents out the side.
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post #4 of 17
Or you could trash that case and spend 30 bucks on a cm690.

Does dell use Non-atx motherboards?
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post #5 of 17
Quote:
Originally Posted by Retrospekt View Post
Or you could trash that case and spend 30 bucks on a cm690.

Does dell use Non-atx motherboards?
yes. they use custom ones that fit perfectly in the prebuilt they made it for.
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post #6 of 17
All of the Dells that I have seen use BTX motherboards (including the one you have). BTW, I hate the way that they have the hard drives facing. They face toward the door, so you have to get one of those angled sata plugs, otherwise you can't close the door....dumb design!

I have a Dimension e510 and the case is almost identical to yours except that the two harde drive slots are stacked together..
What I did was take two 80mm fans and some double sided tape and stick them to the back exhaust holes. Been working well so far!


Note: About the boards being BTX, I know they are similar to BTX boards, however I don't know if the screw placement is the same.

Note#2: Wow, the board in your case is really weird! Yours really is custom fit to that case!

Note#3: Also, add your PC specs here: http://www.overclock.net/specs.php

Note#4: You should probably have the fan blowing into the card. Will help cool the ram. (On the review I found of that cooler, they also have the fan blowing into the card)

Note#5: The double sided tape was about 5mm thick, that way it would "squish" some. I don't think regular double sided tape would work here. (The stuff is really more like double sided sticky foam)
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post #7 of 17
The fan of the thermalrite has to be pushing air down onto the card. Also yeah as bruestle said, you have a BTX case so if you want to do sort of an upgrade you can get

http://www.newegg.com/Product/Produc...82E16811196014

Then you might need a new PSU if some stuff doesn't add up them you will be all clear. Most likely you would be able to install your mobo in into it. But can you please fill out your specs so we can better help you
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post #8 of 17
Wow... always count on the boys over at Dell to do a fan-freaking-tastic wiring job.



It looks like the guy who works on the PSU part of the assembly line vomited.


I'd suggest just taking everything out of that case and getting an entirely new one. Meh.
    
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post #9 of 17
Thread Starter 
Thanks everyone for your advice so far, and I would have to agree with Sentry about the Dell team .

I updated the specs like a few people have suggested.

So do yall' just suggest I mount a fan like directly behind where the CPU exhaust is? The grill in the back is exactly 90mm, but its just a grill, no mounting holes or anything, should I juststick with an 80mm or get an 90mm?

Again, thanks everyone so far.
Dell XPS 400
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Dell XPS 400
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post #10 of 17
Id suggest a 90mm fan, will move a little more air and be a tad quieter than the 80mm.
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