Air Cooling the Corsair 1000D

[Wolololo]

So I was planning an aircooled build using the massive Corsair 1000D case. The build is mainly for AI computing and the CPU and GPU will be under full load for extended periods of time. The question is whether the fans and the cpu cooler will be enough to achieve safe temperatures even under full load. 

 

For the cooling solution, the plan is to mount 8x 120mm in the front of the case for intake, then have 3x 140mm fans at the top for exhaust, and also have 2x 120mm fans in the back for exhaust. It would look something like this:

 

Some rudimentary calculations regarding airflow show that the total CFM generated by 8x Noctua NF-A12x15 PWM 120m fans is approx. 444 CFM(intake) and by 2x NF-A12x15 120mm and 3x Noctua NF-A15 PWM 140mm fans is approx. 216 CFM(exhaust). This suggests that the fan configuration should constitute a positive pressure environment in the case, but a potential problem could be the large difference in Total_IntakeCFM - Total_ExhaustCFM, causing air to recirculate in a case with a large surface area. Openings in the case (especially in a case this big) and the cooling of the recirculating air might play a role in cooling, but then again, I have no background in aerodynamics and such.

 

I was wondering if the system can be sufficiently cooled through this solution. I'm open to using AIO CPU coolers but haven't seen one that is compatible with the top tray of the case. Any input would be greatly appreciated. Thanks!

 

Specifications:

Motherboard - ASRock TRX40 Creator

CPU - AMD Ryzen Threadripper 3990x

CPU cooler - Noctua NH-U14S TR4-SP3

RAM - Samsung DDR4 32GB PC4-21300 ECC/REG (x8)

SSD - Samsung 970 Pro M.2 2280 1TB

HDD - Western Digital 8TB Ultrastar DC HC510 (x2)

GPU - Zotac Gaming Geforce RTX 2080 Ti D6 11GB BLOWER (x2)

PSU - Corsair AX1600i 80PLUS Titanium

Case - Corsair Obsidian 1000D

Case fan (120mm) - Noctua NF-A12x15 PWM (x10)

Case fan (140mm) - Noctua NF-A15 PWM (x4)

ETC - Nvlink

[Letgomyleghoe]

Your best bet would be air cooling if you don’t want to go full custom loop

[Bombastinator]

If it helps any the cube root of 444 is like 7.6 something so you’re basically dump in an entire. 8x8 room full of air through the case every minute.  That’s really a lot.

[Wolololo]

38 minutes ago, Bombastinator said:

If it helps any the cube root of 444 is like 7.6 something so you’re basically dump in an entire. 8x8 room full of air through the case every minute.  That’s really a lot.

Ahaha yeah you're right. I didn't think of it that way. To continue that line of thought, I'd like to add that the intake fan airflow is comparable to a Vornado desk fan. I guess that it should be more than enough. 

[Letgomyleghoe]

Have you thought about using something like a 2080ti xc ultra from evga instead of the blower from zotac? 

 

Blowers tend to be loud and hot

[Wolololo]

2 hours ago, scuff gang said:

Have you thought about using something like a 2080ti xc ultra from evga instead of the blower from zotac? 

 

Blowers tend to be loud and hot

Yup! I'm planning to populate all the pcie slots with gpus in the near future, possibly a 2x 2080ti and 2x Quadro RTX 6/8000 config, or a 4x 2080ti config. So I'm thinking that instead of having 4x open air gpus all blowing hot air onto each other, having heated air expelled through the back will be better for GPU temps. I've seen temp tests that seem to suggest this. As for the sound... well I guess he'll have to deal with it (I'm building for someone else).