Fan Airflow Question

Soldato
Joined
1 Sep 2003
Posts
7,228
Location
Redcar
Hi all. I'm installing 6 Noctura fans tomorrow. The white arrows are my purposed placements. Where the question mark is should that be an intake or exhaust?

 
Brilliant thank you all. I can either try it out or just return one of the fans. At the moment there are no fans on top and it does get quite hot.

Shame the case dosnt have more mounting options (3 front, 2 top and 1 exhaust).
 
Yeah it's a Corsair 4000D air flow case. I have perhaps two of the hottest components in it as well the 3800 MSI Suprim X and a 5800x

I've undervolted the CPU and that took it down 10c, with no real performance loss. On Cinebench it goes to 83 max. On Cyberpunk at 4k max settings (97-99% gpu utilisation) it goes to about 83 max for both of these two stock fans.

On a side note I also discovered that who ever installed the Black Rock Pro 4 Fan installed it wrong (I think?) By installing the outer fan as a case fan. I only noticed it come on during intense games (not at all on cinebench). Plugged it into the "System pump" fan for now and will get them to send me the splitter it should have come with to connect to cpu fan port.

So with regards to air pressure there's no benefit of "pushing the air down" on the "?" Label. I thought it might of helped cool the gpu and "push" the air down and back, to the exhausts. I think I was overthinking it

It's six Noctua NF-P12 Redux-1700 PWM fans I've ordered.
 
There's no screw slots at all unfortunately on the bottom.

Fans all all installed so far so good. 6c off Cinebench (and higher scores) -15c off Cyberpunk CPU and -10c off the GPU at 4k max settings with dlss performance mode on.
 
hIrgd9j.jpg
 
@Hostile_18 That looks better. The card seems a little "twisted" but probably isn't.

Well done.

For me....

IMG20210711090339.jpg

can't really see the angle of the GPU support etc but it is needed for my long GPU card. I think that the power cables drag it down a little as well as the overall length of the card.

Very nice. What temps do you get with that?
 
Wow thank you for all the brilliant information guys. I feel a lot more knowledgeable now!

I've done more testing and I've pretty much dropped 10c in CPU and GPU across the board, so happy to leave it as is for now. Was really quite fun to do that instalation/cable management.
 
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