It can't be dumb if it works!! GPU cooling hack!!

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[JessicaFEREM]

there's nothing more permanent than a temporary solution that hasn't broken yet

[drewfromoz]

R.I.P SLI!. When using 2 graphics cards like a decade ago, this used to make significant difference in temps for my top GPU back in the day. I even had a second fan wedged at the start of the 2 GPUs and had a wind tunnel effect going on. Game changer in Summer!

[BlueHoodie]

The Lian Li Lancool 216 case already has this feature, it comes with a backplate bracket for the 120mm fan that exhaust air from the case.

[dr.sawdust]

Thing that is also important is that you want more fans blowing ‘in’ the machine than ‘out’. Or that you have a positive presure inside instead of negative.

Why? You have these holes in the back of the case without a filter. If you have a negative presure dust Will be sucked in. Of there is a positive presure, it wil allways blow a bit there.

I have a positive presure in my case, and after a year there is almost ‘no dust at all.

[kahvozeinsfang]

When I switched over to a hyper 212 from the stock AMD cooler, I noticed an slight increase in GPU temps. Any air movement will definitely help.

[HazewinDog]

I did this exact thing to keep my cheap, undervolted Titan X cool/quiet enough while holding over for GPU prices to drop :D I used one of the included case fans with my Seasonic Syncro Q704 (120mm Nidec fans) and it fit perfectly on the case I was using (Phanteks Evolv X). I used zip ties to give it a nice, secure mount. I also removed the PCI brackets and mounted it INSIDE the PC btw.

[swiftly]

I did this with my old build. at first I took the rgb fan off the original ryzen heatsink and mounted it in that exact area. worked like a charm on my first pc and ive been doing it ever since. 80mm fans seem to fit the best. not the best for dust tho but oh well. lol

[JessicaFEREM]

with most modern PCI brackets having holes in them, it's easy to think that actually using those holes can make a huge difference

[MajorSpam]

There's a PCIe Fan Mount from Silverstone that does exactly this. There are also Metal Fan Spaccers with magnets at the corners, so you could just slap a fan behind it.
But in the end vertical GPUs and rear exhaust GPUs like Nvidia Founders Edition and Acer BiFrost should benefit the most of it.
Maybe also passive PSUs.

[FranciszekWolc]

its not dumb at all.. its genius. counterintuitive but a physicist could explain it very well

[daiyaanmuhammad]

I taped one fan under my GPU and had it setup where it would blow air to the GPU. And open up the side panel. The temps on my 580 went from 73 to 65-66 after 1 hour of gaming. The thing was amazing!

[andystech]

Maybe we’ll live in a future with 3 front intake and 3 rear exhaust fans for cases 😅

[Negiku]

I put a 90mm fan from an old shitty PSU (silver office psu) and it drops 5 degrees, this is amazing. I wonder if buying something like noctua 93mm fan would further drop the temps. Anyways, nice find and thanks for sharing.

[mamdouh-Tawadros]

It is a good idea for sure. But I think if you place this fan, even smaller size inside the case, it might be better.

[_sting]

i do use a 80mm fan below the GPU but installed by inside, had to remove those metal things you take off where you plug the monitor cables, i dont see a big difference but makes me feel better

[Dreadnoughty]

I did something like this back then when i had dual GPU´s installed (R9 290´s, gtx 970´s and gtx 1070´s). it made a huge difference

[Nikolaos]

I built a fan stand out of some K'nex and angled it under my 3080ti, overall minimal improvements, but anything to bring those memory temps down is a win
Same Corsair case here as well

[andrewjones]

Maybe 3d print a little shroud for this as an add on

[wittywolk]

I did this but I put the fan (80mm Arctic) inside the case as a intake, fans are running at 40% instead of 50% in benchmark with the same temps, so in my case it was a improvement, it's quieter now. :))

[photonboy]

SIDE FAN rocks if you have a case that supports this... my crappy older case has way better cooling than most modern cases. My side fan is right next to my graphics card and the air coming out is pretty hot even though it's only running at 300RPM and can't even be heard. In fact, I feel hot air even when the fan isn't installed. I modded my GTX1080 with Noctua fans and have a pretty much dead silent PC using "FANCONTROL" software. I can only just BARELY hear my computer and that's ONLY if a game is stressing my GPU. It's 100% dead silent for most tasks as my Noctua fans sit between 300RPM and 500RPM most of the time.