Which rear case fan to use?

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Joined
27 Mar 2019
Posts
8
Hi everyone,

I just bought the below setup and have a question I hope you could help with.

Phanteks Eclipse P350X Glass Digital RGB Midi Tower Case - Black
Gigabyte Z390 UD (I'm presuming)
**Build Promo**Intel Core i7-9700K 3.6GHz (Coffee Lake) Socket LGA1151 Processor
Team Group Vulcan T-Force 16GB (2x8GB) DDR4 PC4-24000C16 3000MHz Dual Channel Kit - Grey (TLGD416G30
Gigabyte 256GB M.2 PCIe x2 NVMe SSD/Solid State Drive
Samsung 500GB 860 EVO SSD 2.5" SATA 6Gbps 64 Layer 3D V-NAND Solid State Drive (MZ-76E500B/EU)
GIGABYTE GeForce RTX 2080 GAMING OC 8G
Comes with a 600W PSU but I have a spare Corsair 650W modular supply I could swap it out with.

The watercooling for CPU is the Asetek 670LT cooler - front mounted.
My question is, should I swap the default rear exhaust fan?

I asked OCUK what fan it comes with and they said to ask Phanteks,which I did and the details are below:

Dimension: 120 x 120 x 25 mm
Rated voltage: 12V
Operation voltage: DC6.0V-DC13.2V
Speed: 1300 ± 10%R.P.M.
Max airflow: 50.557CFM
Static pressure: 1.257MM-H20
Acoustics: 23.5dBA
Weight: 109.6g

Assuming the Asetek radiator has Static Pressure fans on (which all radiators should imo)
Would I be better swapping out the default rear fan for a spare Akasa Viper I have which has higher CFM and actually has high SP rating I believe.
The main trade off would probbaly be the noise level by about 6dB at full RPM. Reason for this is that I know Air Flow fans are better with no restrictive covers / filters in the way.
Or would I be better sticking to the stock one provided?

Any feedback is appreciated and I know the ideal solution is to test with both fans and compare temps during stress tests but just wondered opinions.

Thanks
 
The radiator fans should be all the fans you need. I build a couple systems a month and it's been several years sense I used any exhaust fans. Good intake fans are all I use. That said, I hate CLCs so don't use them.

You got it, the simple way to figure it out is run some stress tests and see what temps do. Might take 20-30 minutes for temps to peak so don't stop the test too soon. ;)
 
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