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Does case airflow matter?

Maybe this is a dumb question. I have an h100iv2 for my cpu on the front panel and an evga 980ti hybrid gpu, rad on the rear panel. Both are set to intake with a single exhaust fan on the top. With these components both drawing fresh air rather than relying on case flow/fans, does my case really matter? Currently have an s340 case and ideally will be upgrading to an evga 3080 20gig hybrid when it is released

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What are your temps?

 

CPU, GPU and other relevant ones at idle and load?

i5 8600 - RX580 - Fractal Nano S - 1080p 144Hz

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Yes case airflow matter.

If you don't have a proper airflow, heatsink will reuse the already hot air it produce, again and again, adding more heat with each loop. Making the cooling ineffective. 

Ryzen 2600 @ 4ghz | Radeon RX580 | 32gb HyperX 3200mhz | 500gb Samsung PM981a | 5 TB HDD | Corsair CX450

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Yes, case airflow matters a lot. But the S340 case by itself is quite a bad case when it comes to airflow so I don't think there is much you can improve with your setup. The top intakes are extremely restricted by the front panel.

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Yes and no - technically if you are within the realm of operating temperatures as rated for the equipment, it doesn't matter.

 

To me, it matters.  Thermals, airflow, case design.  In the end I don't want to hear my PC running, sweat in the summer during long gaming sessions because my room superheats, etc.

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On 9/23/2020 at 9:10 AM, NineEyeRon said:

What are your temps?

 

CPU, GPU and other relevant ones at idle and load?

Cpu is in the low 70s during Cinebench. GPU in the 50s gaming (both ar OC’d)

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On 9/23/2020 at 9:32 AM, SupaKomputa said:

Yes case airflow matter.

If you don't have a proper airflow, heatsink will reuse the already hot air it produce, again and again, adding more heat with each loop. Making the cooling ineffective. 

Yes but cpu and GPU are both water cooled and draw fresh air from the front and back panels so they aren’t recycling hot air in the chassis

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1 hour ago, blakslee720 said:

Cpu is in the low 70s during Cinebench. GPU in the 50s gaming (both ar OC’d)

 

1 hour ago, blakslee720 said:

Yes but cpu and GPU are both water cooled and draw fresh air from the front and back panels so they aren’t recycling hot air in the chassis

This should be ok.

Ryzen 2600 @ 4ghz | Radeon RX580 | 32gb HyperX 3200mhz | 500gb Samsung PM981a | 5 TB HDD | Corsair CX450

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