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Issue with airflow to PSU and GPU

post #1 of 25
Thread Starter 
Hi,

I'm concerned about the airflow between my PSU (Antec 520w HCG) and my GPU. (MSI GTX 770 Twin Frozr) My case is a BitFenix Merc Beta and my motherboard is an Asrock z77 Pro3. The blueprint for the motherboard can be seen here.

The problem is that the sole PCIe 3 slot is located near the bottom of the motherboard. My GPU is slotted there, right above my bottom-mounted PSU (you can clearly see this in the images I've submitted below)

The Twin Frozr has two fans and frequently operates at 80 degrees celsius when playing demanding games, in line with the GPU Boost 2.0 technology by Nvidia.

I am worried that my PSU and GPU, given their close proximity, will end up absorbing too much heat as there is too little space between them, and the last thing I want is a busted PSU or an overheating GPU. However, moving my GPU to the PCIe 2 above is not an option as I am aware of the fact that performance degradation can occur as a result of using a weaker slot.

My question is, will the close space result in overheating of either components or faster depreciation of their lifespans?

I've submitted a few images of my rig below.

Any help or advice you can offer would be appreciated.

Cheers.




post #2 of 25
Cant you flip the PSU around?
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post #3 of 25
Agreed with Shilka... have the PSU suck air from the outside of the case.... It is setup for it per this pic:

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post #4 of 25
btw...

look at page 13 in your mobo manual.... the PCIE 3.0 slot is the top slot, not the one you have the card in:

Manual > http://download.asrock.com/manual/Z77%20Pro3.pdf

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9x Primochill Acrylic Radiator Grills Alphacool ST30 280 radiator Alphacool ST30 280 radiator Alphacool 420 80mm 
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Pawtec External USB 3.0 Aluminum 8X DVD-RW Writ... Primochill ghost fitings Monsoon reservoir Swifttech MCP50x/2  
CoolingCoolingCoolingCooling
Primochill rigid acrylic tubing EK supremacy CPU block - Nickel EK 780Ti waterblocks x3 - Nickel Lamptron FC9 fan Controller 
CoolingCoolingCoolingCooling
9x Primochill Acrylic Radiator Grills Alphacool ST30 280 radiator Alphacool ST30 280 radiator Alphacool 420 80mm 
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post #5 of 25
Thread Starter 
Crap, never noticed that. That's what I get for not reading it properly. Guess I can just move the graphics card now.


Thanks!
post #6 of 25
Yes, put your card in the correct slot, flip the PSU and you could even add an extra fan in the bottom if needed.

And replacing some of the pci brackets with vented pci brackets could also help getting temps down when you have a positive pressure inside the case.
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post #7 of 25
Quote:
Originally Posted by DredFX View Post

Crap, never noticed that. That's what I get for not reading it properly. Guess I can just move the graphics card now.


Thanks!

Glad to help! thumb.gif


PS... I would still flip the PSU... much more efficient for it to get cooler air from outside.... plus it wont disrupt the airflow in your case that way...
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EVGA GTX 780Ti SC Kingston HyperX Beast 32 GB Kit (4x8 GB) 2400MH... Western Digital 2tb Enterprise Samsung 840 Pro SSD 256GB 
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Pawtec External USB 3.0 Aluminum 8X DVD-RW Writ... Primochill ghost fitings Monsoon reservoir Swifttech MCP50x/2  
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Primochill rigid acrylic tubing EK supremacy CPU block - Nickel EK 780Ti waterblocks x3 - Nickel Lamptron FC9 fan Controller 
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9x Primochill Acrylic Radiator Grills Alphacool ST30 280 radiator Alphacool ST30 280 radiator Alphacool 420 80mm 
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post #8 of 25
Thread Starter 
Might look into that as well. I assume that you mean the fan on the top has to face out the back of the machine?

Apologies, I'm still a PC build noob. tongue.gif
post #9 of 25
Quote:
Originally Posted by DredFX View Post

Might look into that as well. I assume that you mean the fan on the top has to face out the back of the machine?

Apologies, I'm still a PC build noob. tongue.gif

Actually the fan on the "top" of the power supply will need to face down, and suck air through the bottom of the case.... that is why the bottom of the case is perforated... to allow air in for the PSU.
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(16 items)
 
   
CPUMotherboardGraphicsGraphics
INtel 4770k ASUS maximus extreme VI  EVGA GTX 780Ti SC  EVGA GTX 780Ti SC 
GraphicsRAMHard DriveHard Drive
EVGA GTX 780Ti SC Kingston HyperX Beast 32 GB Kit (4x8 GB) 2400MH... Western Digital 2tb Enterprise Samsung 840 Pro SSD 256GB 
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Pawtec External USB 3.0 Aluminum 8X DVD-RW Writ... Primochill ghost fitings Monsoon reservoir Swifttech MCP50x/2  
CoolingCoolingCoolingCooling
Primochill rigid acrylic tubing EK supremacy CPU block - Nickel EK 780Ti waterblocks x3 - Nickel Lamptron FC9 fan Controller 
CoolingCoolingCoolingCooling
9x Primochill Acrylic Radiator Grills Alphacool ST30 280 radiator Alphacool ST30 280 radiator Alphacool 420 80mm 
OSMonitorKeyboardPower
Windows 7 Ultimate Dell UW3014 Merc stealth steel series keyboard EVGA NEX1500 PSU 
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CPUMotherboardGraphicsGraphics
INtel 4770k ASUS maximus extreme VI  EVGA GTX 780Ti SC  EVGA GTX 780Ti SC 
GraphicsRAMHard DriveHard Drive
EVGA GTX 780Ti SC Kingston HyperX Beast 32 GB Kit (4x8 GB) 2400MH... Western Digital 2tb Enterprise Samsung 840 Pro SSD 256GB 
Optical DriveCoolingCoolingCooling
Pawtec External USB 3.0 Aluminum 8X DVD-RW Writ... Primochill ghost fitings Monsoon reservoir Swifttech MCP50x/2  
CoolingCoolingCoolingCooling
Primochill rigid acrylic tubing EK supremacy CPU block - Nickel EK 780Ti waterblocks x3 - Nickel Lamptron FC9 fan Controller 
CoolingCoolingCoolingCooling
9x Primochill Acrylic Radiator Grills Alphacool ST30 280 radiator Alphacool ST30 280 radiator Alphacool 420 80mm 
OSMonitorKeyboardPower
Windows 7 Ultimate Dell UW3014 Merc stealth steel series keyboard EVGA NEX1500 PSU 
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Lian Li PC-D600 Razer Death Adder Mouse Razer Scarab mousepad Logitech X-540 5.1 speakers with sub 
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post #10 of 25
Thread Starter 
But won't that allow dust and dirt to get into the fan more easily? :/
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