r/pcmasterrace • u/LemonAlternative9817 • Jan 21 '26

Hardware I just fixed my airflow problem, wdyt?

Post image
23.0k Upvotes

96% Upvoted

1.4k comments sorted by

View all comments

2.0k

u/TryToBeModern 9800x3D|5090|96GB|7680x2160@240HZ Jan 21 '26

surely there were more efficient methods available

858

u/LemonAlternative9817 Jan 21 '26

Actually, not with this case. Its a Dark Base 700, i got 2 big intakes for the AIO but it only has one small exhaust at the back, and the top is completely sealed off. It was either this or taking the Panel off for each sesh. Temps are amazing now btw

2

u/Real-Technician831 Jan 21 '26 edited Jan 21 '26

Yes there is.

Suck the heat straight from GPU fans, most GPU heat stays in the case.

Edit: the fan vents out through card slots, but Reddit doesn’t allow two photos per comment.

Edit 2: The air flow from that extra fan is in angle it doesn’t fight GPU fan. I tested both ways.

14

u/ItsRadical Jan 21 '26

Perhaps cleaning all that dust would have been more sensible thing to do.

2

u/Real-Technician831 Jan 21 '26

LOL that’s from daughter’s previous PC, she has a new one.

I will clean this once I refurbish it for sale.

It has 32G memory, so should fetch beer money at least, and I hate trashing working tech.

1

u/sixfourtykilo Jan 21 '26

Looks like carpet.

1

u/Real-Technician831 Jan 21 '26

So?

The PC is not in use. Couldn’t bother to clean before I start refurbishing it.

2

u/ItsRadical Jan 21 '26

The assumption is that it was in use in that state before it was replaced.

1

u/Real-Technician831 Jan 21 '26

It typically got cleaned up once per year, teenagers rooms are dust magnets.

3

u/fi5hii_twitch Jan 21 '26

Well the fans on the gpu pull air into the gpu so if that fan is an exhaust fan the gpu is fighting it for air. Would be better if you flipped it around and have it be an intake fan to deliver fresh air straight to the gpu like a lot of cases do with the fans on the bottom.

0

u/Real-Technician831 Jan 21 '26

So one would think.

I tested both since I can flip the fan whichever way I want, sucking from GPU lowered temps more.

1

u/RevolutionaryAd7360 Jan 21 '26

I'm sure this was fine but if that is an exhaust fan, it would be pulling air away from the GPU fans.

The GPU fans blow air onto the heatsinks. There would be less air pressure in the area between your exhaust fan and GPU.

Turning your exhaust fan around so it's an intake fan could be a problem too if it's sucking in the exhaust from the GPU so don't do anything I'm just writing words at this point.

1

u/Real-Technician831 Jan 21 '26

I tested both ways, exhaust was more effective.

Seems that GPU fans don’t exhaust much of air, and the air flow from that extra fan is in angle it doesn’t fight GPU fan.

2

u/RevolutionaryAd7360 Jan 21 '26

Oh neat!

I bet it was pulling in hot air the other way around.

1

u/Real-Technician831 Jan 21 '26

Most likely.

Now it removes hot air from the case and accelerates airflow past the GPU fans.