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Help me configure my case for best GPU cooling

post #1 of 7
Thread Starter 


So my GTX 465 is sitting right on top of my GTS250, which covers 60% of the intake cutout for the fan on the 465. Since the top of the pcb also has 3 smaller slots, I assumed that the pressure should allow it to intake enough cool air.

If I swap the 465 UNDER the 250, then 250 blows hot air right on the back of the 465pcb, and also into the 3 slots that feed right to the fan. The board has my pci e slots spaced in such a way to where I cant adjust them farther apart.

I am currently at stock clocks on my gtx465 and have idle temps of 57c, and load temps of 92c. Any input?
post #2 of 7
I would almost wonder if your high temps on your 465 are from the way your h70 is blowing. I have my h50 as exhaust and saw no difference when I flipped it around except a cooler video card....

I have a similar set up case and I put a 120 mm fan under my cd drive too.
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SuperMegaPwnsauce
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post #3 of 7
GTS250 blow down instead of onto the heatsink... really?

bugger that fan off and swap it for one that blows the right way then do what you did before to have the 250 on top.

Also have you got a side panel fan installed to blow on the GPU's?
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Black Knight
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post #4 of 7
Thread Starter 
hmm I suppose you were right about the fan on the 250 blowing ON the heatsink. I swapped the 465 to the bottom and my idle is now 57, and im 8 min in on furmark and its peaked at 87c. Better than before. Im not sure if this leaves me any room to overclock my card though. I do have the large side fan blowing on the card (200mm).

My fan speed is set to auto on my 465 since anything over 70 is pretty annoying.
post #5 of 7
I would say you have really bad airflow in your case

I would try this
flip H70 fans so it will blow the air out
flip top fans so it will blow air to the case
take out top 2 intake fans (fan at down is good so it can cool HDD)
flip side fan so it will blow air out
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post #6 of 7
Everything looks good just the h70 fans should be placed as exhaust.
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Dunno
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post #7 of 7
Quote:
Originally Posted by Kasp1js View Post
Everything looks good just the h70 fans should be placed as exhaust.
yeah as stated, next option would be to start looking at the cfm ratings of the case fans (stock?) and upgrade to some better ones.

I recently had some crappy ~50cfm front intakes and swapping them for some Xigmatek ~75cfm ones dropped ALL temps by at around 5C
Black Knight
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Black Knight
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QX9650 C1 @ 3.6Ghz (lapped) GA-EP45T-UD3R (NB+SB lapped) Palit GTX470 + 8800GT PhysX 2 x 2Gb OCZ DDR3 1600 
Hard DriveOptical DriveOSMonitor
2 x WD 500Gb RAID 0 Pioneer DVD RW 16x Win7 x64 Pro Acer G245H 24" LCD 
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Antec TruPwr 750W (sleeved) NZXT Tempest Evo 
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