Dell XPS8500 and addittional cooling

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dmatos

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Feb 4, 2014
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I am thinking of adding a 120mm fan to the sidepanel of my XPS8500 box (just outside the GPU). It get's warm in there and the card really has nowhere to vent easily.

I plan on using a dremel to cut out the hole, drill holes for the screws and attach.

My question is, can I "Y" off the existing chassis fan and have them both be controlled (the same) by the mobo or should I just wire straight off of power supply (not stock) and let it run all the time.

I'm planning on getting something like the
Enermax T.B. Silence 120mm
so it really shouldn't matter if it runs all the time. It'll be quieter than the stock fan it came with.
 
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dmatos

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GPU: xfx Hd7870. Getting into 72C degree range and throwing errors. Haven't tested it at full load.

The box is quite tight and the back case fan is essentially vented to processor.


Looking at upgrading to gtx970 soon.



 
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ZskNinoh

ZskNinoh

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Dec 31, 2014
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Max safe temp is 85C. You are safe.
 
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A_Goat

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Does your case have the inch tall "vent" at the bottom of the very front of the case?
I converted my XPS 8300 into a gaming rig.... mobo temps weren't ideal.

I shoved a 120mm fan inside the very front of the case, below the drive bays as intake. It pulls air in through that inch tall vent.
Only lowered temps by like 3 degrees.... but hey :)

I wouldn't suggest splitting the chassis fan out on the mobo, as I can't find the amperage that specific out supplies.
Most mobos can support even 3+ splits, but OEM mobos are very specific. I have the one in my 8300 running at 100% direct from the PSU and I never hear it over the GPU/OEM rear fan.
 
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ZskNinoh

ZskNinoh

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Not worth. Just try not to reach the max safe temp, and save up to buy a better case if you wish.

 
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dmatos

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Just stressed tested... ramped up to about 88 degrees before black screening. The fan rpms got to around 3000.

I'll likely just run a fan directly from psu in the sidepanel, but may wait to see what the temps are if I get the gtx970.



 
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ZskNinoh

ZskNinoh

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So just to be clear, this is your GPU? Not your CPU?
 
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dmatos

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Correct. GPU temp. Am going to try to play with side panel off and see if that lowers temp.




 
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ZskNinoh

ZskNinoh

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You would always convert your side panel to hold fans. All you would need to do is drill 4 holes for the screws, then drill a bunch of other holes in between.
 
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A_Goat

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Having the side panel off + pointing in a fan only lowered temps by 5 degrees.

Adding a 120mm or even 140mm fan to the side panel (which involves modifying the case) will not reduce temps very much more than adding a 120mm fan inside the case, which does not involve modding the case.

You will make the case lose its sleek design for 1 degree gain, if even that.
 
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ZskNinoh

ZskNinoh

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Then I am really at a loss, I'm sorry but I do not know how you could bring your temp down significantly.

I'm sorry I couldn't help you as much as I would have liked to.
 
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A_Goat

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The best option for cooling the case atm however IS to open the panel and point something like a box fan inside.
If you do this, we could check to see if the issue here is indeed inadequate cooling inside the case.

The card should not be throwing errors at 72C, though. I don't think the temp is the problem at that point. 88C however is pushing it. What are the fan speeds maximum? Do they eventually spin up to 100% or do they stop at a certain %?
Msi after burner(free) will tell you exact fan RPM and %.

Have you overclocked the card at all?
 
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