case air flow using intake and exhaust fans.

chugzilla

so, i have been doing a lot of reading and watching YouTube videos on this subject and of course each one of us is limited by what case we have now. I'm trying to learn about negative vs positive vs neutral pressure in our cases and the best air flow for our case now most videos say match the exhaust fans to the intake fans that would give you the best air flow but in my case i have one more exhaust than i do intake so i tried setting my upper fans for intake and i was shocked it actually increased my temps of the CPU and GPU a few degrees higher than as exhaust i figured it would lower the temps because i never feel hot air coming out and a lot i have read says that sometimes in an air cooled case the upper exhaust pulls out the front air before it reaches the rest on the pc so in my case that's a no. so i changed them back to exhaust it was fun and worth it Ya learn a lot but i was wondering if anyone else here cares at all on this subject or if you have done anything to your case like this?

How to optimize your case airflow! - YouTube

Cooler Master H500 - Best Top Fan Configuration (Exhaust Or Intake) - YouTube

Optimal Airflow PC setups for your build | Positive, Negative & Balanced Explained - YouTube

Quick420

You should do the case mod I did.Take out the hard drive caddy,completely remove it by taking out the 4 screws and drilling out the rivits from the bottom of the case.Then use plastic zipties to mount hard drives to the bottom of the case using the holes from the rivits.I have a 3.5inch with 2x2.5 ssd's stacked on top zip-tied solid to the bottom.The front case fan is now 100% flowing fresh air into the case right to the video card.The caddy blocks of 1/2 the fan and once you fill it with hard drives it completely blocks the front fan,not good at all.

chugzilla

yeah, I'm going to do that but i also noticed the bracket for the GPU seems to block more front fan air from the upper fan than the HDD bays or there about the same, terrible design flaw again, have you thought on what we can do about that? I'm going to try and remove it and use some other type of bracket for GPU sag problems. and i don't need to mount anything on the bottom i don't use HDD drives and i use external SSD drives so I'm all set there but thx. and when i get that cleared, I'm going to drill extra holes in the bottom of the case where the HDD bays were and mount a fan there to bring more cool air in and see what that does.

Quick420

Once I cleared the front fan by removing the caddy,temps are great,my video card never hits 60 anymore and my cpu hit max 59c playing Horizon5 for about 2 hours at 4k.On top of that I'm using a program called QuickCpu which forces my i3-12100 cpu to stay at 4.1 ghz solid and it still only tops out at 59c.My fan speeds are set as follows:front/65 back/70 cpu/70 I would say if you are not using the space that removing the caddy provides to mount hard drives,then mounting a fan there would help a lot.But honestly mounting a fan at the top of the case where the holes are above and to the right of the memory will provide much better results,hot air rises and this removes it from the case out the top.

chugzilla

yeah, i already have 2 exhaust fans up top and with those 2 fans and the Noctua NH-U12A my CPU averages 38-48 depending on the game and my GPU is 30-53 depending on the game all my games are set the highest level of settings. i monitor it all using predator sense on my 2nd monitor. now I'm only playing at 1080p that's what my predator monitor is but its 240hz so it's pretty cool. so, i have a total of 9 fans in my case counting the GPU fans.