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Non-Reference Cooling

AllstaRawR
By AllstaRawR
in Graphics Cards
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I've come across something that really confuses me. The fans on my G1 suck air INTO the card, blowing it across the heatsinks. So why is it that I get better thermals when I have fans blowing air facing away from the G1's fans than then I have fans blowing air into the fans? Example:

 

JrdrdVO.jpg

 

When the bottom fans blow up onto the GPU, temperatures increase. When the blow out, temperatures decrease. Why?


 

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240 Air ; Z87I-Deluxe ; 4770K ; H100i ; G1 GTX 980TI ; Vengeance Pro 2400MHz (2x8GB) ; 3x 840 EVO (250GB) ; 2x WD Red Pro (4TB) ; RM650 ; 3x Dell U2414H ; G710+ ; G700s ; O2 + ODAC + Q701 ; Yamaha HTR-3066 + 5.1 Pioneer.

 

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you are removing hot air from the case when you set bottom fans as exhaust

you are re-cycling the same air in the case when you set bottom fans as intake

CPU: Intel i7 5820K @ 4.20 GHz | Motherboard: MSI X99S SLI PLUS | RAM: Corsair LPX 16GB DDR4 @ 2666MHz | GPU: Sapphire R9 Fury (x2 CrossFire)
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You practically answered it yourself the G1 fans suck air into the air therefore it's gonna have better temps with bottom fans acting as intakes blowing cool air into the case and directly in the path of the GPU instead of exhausting and sucking hot air out of the case

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CPU: i3 4160|Motherboard: MSI Z97 PC MATE|RAM: Kingston HyperX Blue 8GB(2x4GB)|GPU: Sapphire Nitro R9 380 4GB|PSU: Seasonic M12II EVO 620W Modular|Storage: 1TB WD Blue|Case: NZXT S340 Black|PCIe devices: TP-Link WDN4800| Montior: ASUS VE247H| Others: PS3/PS4

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You practically answered it yourself the G1 fans suck air into the air therefore it's gonna have better temps with bottom fans acting as intakes blowing cool air into the case and directly in the path of the GPU instead of exhausting and sucking hot air out of the case

 

But it doesn't. That's what I thought. It gets WORSE temperatures when I blow fresh, cool air on my G1. It gets better temperatures when literally every fan in my case is exhaust and I have no intakes. ._.

 

 

you are removing hot air from the case when you set bottom fans as exhaust

you are re-cycling the same air in the case when you set bottom fans as intake

 

But every other fan in the case is an exhaust. The two fans at the bottom are the only intakes, and they intake right onto the G1.

 

EDIT: I should clarify. I'm only referring to temperatures for my GPU. I don't care about my CPU or board temperatures, they're plenty low. I have AC DeadSilence fans on the rad and they actually perform better than my old F12s did.


 

[spoiler = "My Computer Stuff"]

My ITX:

240 Air ; Z87I-Deluxe ; 4770K ; H100i ; G1 GTX 980TI ; Vengeance Pro 2400MHz (2x8GB) ; 3x 840 EVO (250GB) ; 2x WD Red Pro (4TB) ; RM650 ; 3x Dell U2414H ; G710+ ; G700s ; O2 + ODAC + Q701 ; Yamaha HTR-3066 + 5.1 Pioneer.

 

Things I Need To Get Off My Shelf:

250D ; 380T ; 800D ; C70 ; i7 920 ; i5 4670K ; Maximus Hero VI ; G.Skill 2133MHz (4x4GB) ; Crucial 2133MHz (2x4GB) ; Patriot 1600MHz (4x4GB) ; HX750 ; CX650M ; 2x WD Red (3TB) ; 5x 840 EVO (250GB) ; H60 ; H100i ; H100i ; H100i ; VS247H-P ; K70 Reds ; K70 Blues ; K70 RGB Browns ; HD650.


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Well, you're right, that actually doesn't make too much sense. 

 

 

Are there fan filters for those intakes? If not you might be blowing a lot of dust onto your GPU..

 

Absolutely. The only place without filters is the 80mm slots. :P

 

I was just making sure I'm not crazy and the G1 blows air out of the fans for some weird reason...


 

[spoiler = "My Computer Stuff"]

My ITX:

240 Air ; Z87I-Deluxe ; 4770K ; H100i ; G1 GTX 980TI ; Vengeance Pro 2400MHz (2x8GB) ; 3x 840 EVO (250GB) ; 2x WD Red Pro (4TB) ; RM650 ; 3x Dell U2414H ; G710+ ; G700s ; O2 + ODAC + Q701 ; Yamaha HTR-3066 + 5.1 Pioneer.

 

Things I Need To Get Off My Shelf:

250D ; 380T ; 800D ; C70 ; i7 920 ; i5 4670K ; Maximus Hero VI ; G.Skill 2133MHz (4x4GB) ; Crucial 2133MHz (2x4GB) ; Patriot 1600MHz (4x4GB) ; HX750 ; CX650M ; 2x WD Red (3TB) ; 5x 840 EVO (250GB) ; H60 ; H100i ; H100i ; H100i ; VS247H-P ; K70 Reds ; K70 Blues ; K70 RGB Browns ; HD650.


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