Capacity for up to 10 fans (120mm) in total: 3 up top, 3 in front, 3 on bottom, and 1 in the rear.

You definitely need a rear fan which can be either 120mm or 140mm (recommended).

Usually with air cooling you are looking for the front, top, and rear (exhaust).

The bottom is optional but personally I am not fond of opposing the GPU airflow and would rather run bottom fans like the PSU (towards the bottom) so there is no opposing force against those GPU fans.

Just remember, bigger the fan, the better the airflow and some brands are better than others, I am a fan of the Noctua Industrial series and certain consumer series but will oppose CoolerMaster fans to an extent but these can be good or bad - luck of the draw at an affordable price but their shipping packaging sucks and comes loose in a bag without a box.

https://nzxt.com/products/h7-flow?srsltid=AfmBOooGhQ1FEkFJ-i0kJDv70c6xy_CLQ66kZijebAN53SBBvDZ12br6#:~:text=10-Fan%20Capacity-,Capacity%20for%20up%20to%2010%20fans,-in%20total%3A%203

Some cases with fan controller headers, some models/brands will not function without the stock fans or branded fans; although, some cases will work but for those cases that will not, you will either need an external fan controller or simply use the BIOS/MB fan controller.

I personally like to see the fan RPM (and various temperatures) so I use an external fan controller but then again my case has 3.5" docking bays (x2).

Originally posted by Alice Liddell:

The bottom is optional but personally I am not fond of opposing the GPU airflow and would rather run bottom fans like the PSU (towards the bottom) so there is no opposing force against those GPU fans.

There is no opposing airflow, GPU fans suck air in, they don't push air out.

Originally posted by ᶻ𝗓𐰁:

Originally posted by Alice Liddell:

The bottom is optional but personally I am not fond of opposing the GPU airflow and would rather run bottom fans like the PSU (towards the bottom) so there is no opposing force against those GPU fans.

There is no opposing airflow, GPU fans suck air in, they don't push air out.

My GPU fans pushes the heated air out and away from the heatsink as it should.

The only fans that are "sucking air in" are the two front fans and the PSU fan.

The rear blows out, the CPU cooler fans blows out towards said rear exhaust, and the top fans are also blowing the air out.

But now the GPU cooling styles can vary, some do suck air in and exhaust out the back of the GPU vents, some blow the air out similar to the CPU heatsink, and then some models have more fancier ways to dissipate heat.

The cooling solution is the only thing that separates GPU brands/models.

This is the case lookin at right now

Cooler Master MasterFrame 700 Customizable Open-Air Frame ATX Case

As for
nzxt h7 flow 2024 case
Be interesting if have the time to use a Portable Anemometer and give the flow from bottom slower and as get higher faster. Course to chart that to is why bought a computer in the first place.

Trying to have it rush in or rush out and how it impedes should work no fans and see how the internal dynamic effects pieces of tissue. GPU fan orientation to cpu vents deflect and cause it to run the wall or does it cause something to close shut or flap open then add the fan to that position and see the effect.

Start from there>?

get a fan hub, and have it control all the case fans off the same mobo header
min speed of around 25%, and max of 100% according to cpu socket temp (sensor under the cpu socket)

fan hub
https://www.amazon.com/NOYITO-10-Channel-Temperature-Suitable-Motherboard/dp/B073QM2VVJ

it includes 3x 120 fans mounted in front
dc speed control, not pwm, replace them with pwm fans

supported fan sizes

rear
1 120mm
or 1 x 140mm

Top
3 x 120mm
or 2 x 140mm

Front
3 x 120mm
or 3 x 140mm

Bottom
3 x 120 mm

front/bottom as intake
top/rear as exhaust

uphere has lots of fans are cheap and work good
make sure they are 4pin pwm fan header connector, not 3pin or sata/molex

3 pack 120mm black $10
https://www.amazon.com/uphere-3-Pack-Computer-Cooling-12BK4-3/dp/B098PZ19KX

5 pack 140mm black $20
https://www.amazon.com/Okinos-140mm-1500RPM-Airflow-Hurricane/dp/B0D3XLYC7J


for argb setup
fan hub with argb headers (uses mobo control for all fans and argb)
https://www.amazon.com/Multiway-Splitter-Extension-Adapter-Controller/dp/B0CGM87VWV

argb fans, any of these will work with it
https://pcpartpicker.com/products/case-fan/#s=120,140&p=1&A=3,4,5,6,10&sort=price&B=43



if its new, see if the seller can match microcenter, its on sale for $50+tax
https://www.microcenter.com/product/678467/nzxt-h7-flow-(2024)-tempered-glass-atx-mid-tower-computer-case-white

This is the best case ever, and I've had and seen a ton, I used to do maintenance on PC's
There's also a smaller one non XL less expensive but still big enough for ANY GPU and room to breathe (Mine is in my profile)

https://www.amazon.com/vdp/790d8c8c6afb4acea6bc9d9dbd33b0cf?product=B08146JLXK&ref=cm_sw_cp_r_ib_dt_xwi9Ey7jSK7oZ

https://www.amazon.com/Fractal-Design-Aluminum-Computer-FD-C-DEF7X-01/dp/B08146GB6Y/ref=sr_1_3?crid=27IX0S57OXPX2&dib=eyJ2IjoiMSJ9.qXVni5P_5u1bQ1R8AgX4m-52AiSAEQOb0af1i36Ck1Kv0ApAwNXQ8KnA5ilozf0EsnIvC2X3qI7s8tViPERAaRMTAAvlP5D9nubrxvSXkewKG5IWFPpDdw3dp-FHSS6XBn_c4V7nc2v4jhEBvm6aYDeuCS6ZaqR_MKf1XE7QgDRJ-MI7dk4rc5dHgORTahPBv4JLgxM53DBgV18Z124-zu5-xFhjgPpE64dI6aB1x0w.9QU31EAcu6tTimunjtzMfKK8t-9XjZw3VjQ3E3iXQcw&dib_tag=se&keywords=fractal%2Bdesign%2Bdefine%2B7&qid=1756206209&sprefix=fractal%2Bdesign%2Caps%2C92&sr=8-3&th=1

ok thanks for the replies

dig through this and find the name of it

Originally posted by Kobs:

This is the best case ever,

the first one is name is a
Bob1

Bolt-On Bracing kits can be used to reinforce existing towers.

the second one is a
Define 7 XL

Never clicked on either that's what I got from just reading them and then letting a browser engine get some exercise.

I'd mosquito net a tower and see how bad it gets collecting on the outside which can just draw off and wash.

Your data center should be in the center of the room not inches from a wall and the reason should the bolt on bracing is if planning to raise it.


that Define 7 XL looks as if the powersupply could be mounted in 3 places....no right?
and the front is a specialized Bladeless Tower Fan
the usb C is only 20 GB its at 40GB for chance of multiple monitor outputs...
HUGE and mega organized that thing is gonna keep cool

Define 7 XL is one of the most functional cases on the market as it has plenty of mounts for hdds, which modern cases neglect in favor of AIOs or looks.

What cpu and gpu are you putting in the build. If low powered then might not need much cooling.

After x number of fans cooling improvements might be minimal.

Water cooling? Cooler have fans?

9800x3d
9070 xt or 5070 ti
msi b850 edge ti
64 gb ram
1000w psu

9800x3d ~ 120w

5070 ti 300w

Will need ok cooling. Probably be fine with the 3 front fans. Can always add more later.

Cpu cooler? As mentioned water cooling will have it's own fans.

Power draw during gaming won't be near max power draw. So less heat produced.

cpu cooler will be Thermalright Royal Knight 120 CPU

Originally posted by Alice Liddell:

Originally posted by ᶻ𝗓𐰁:

There is no opposing airflow, GPU fans suck air in, they don't push air out.

My GPU fans pushes the heated air out and away from the heatsink as it should.

The only fans that are "sucking air in" are the two front fans and the PSU fan.

The rear blows out, the CPU cooler fans blows out towards said rear exhaust, and the top fans are also blowing the air out.

But now the GPU cooling styles can vary, some do suck air in and exhaust out the back of the GPU vents, some blow the air out similar to the CPU heatsink, and then some models have more fancier ways to dissipate heat.

The cooling solution is the only thing that separates GPU brands/models.

I would actually argue that GPU cooling systems aren't very well designed at all because they could just create an air loop making the air "circle" around. Obviously you can (and should) counter this with good case ventilation, but it will always disrupt the airflow of the case. You can mount a GPU vertically but it doesn't fix much. Would partially fix it (depending on the design of the card) if the GPU was installed with the airflow of the case in mind.
Right now I have my new GPU blowing hot air directly onto the m.2 and the CPU and not towards the back of the case. It's just stupid.

Most GPUs don't suck air in and don't push air out of the case. They just kind of circulate the air inside the case. Mostly it's due to aesthetics. They (and us) want to keep that sleek old "blade" design that slots onto the MB. But ultimately they just mess about the airflow inside the case. Actually about the same as the "horizontal" CPU coolers like the AMD Wraith (have one, don't like it). Cooling blocks (heatsink + fan), should always follow a flow direction. The the heatsink should allow the air to flow in between the grooves and the fans should push or suck the air in the same direction as the case's flow. Most vertical coolers point the air between the fins and towards the back of the case.

If GPUs were designed and mounted differently the efficiency of the system would be much, much better and there would be less need for a bunch of case fans.

I know I'm not going to change the industry, but here's my opinion.

The GPU sucks cool air in from the bottom of the case also the PSU doesn't expel air out of the case, it draws cool air into the case. Bottom fans pull cool air in from the bottom and push warm air to the top, where it exhausts through the top and back with the rest of the airflow. The only dead zone in air circulation is the buffer created by the GPU PCB itself.