Front PWM Fans vs Front Fixed-speed Fans

[KitEvangelista]

Hi all. I am new here. I have two questions:

 

 

1. Which is better set-up for airflow,
A. 3 front fans that are PWM (500-1500rpm, DeepCool RF120 fans) for intake, AND 3 (1 rear 2 top) fans which are fixed speed for exhaust (these are stock fans from case) [current set-up]; or
B. 3 fixed-speed fans for intake AND 3 pwm fans for exhaust? Pros and cons?

2. Is 40-50c normal idle temps (maybe with background load) for an air-cooled (DeepCool Gammaxx GT TUF Edition) Ryzen 3 3300x clocked @ 4.0ghz?

 

UPDATE:
So what i've found out is that my CPU thermals max out at 69c using CPU-Z benchmark. My Ryzen 3300x base clock is OCd to 4ghz.
While my GPU temp maxes out at 79c using Uningine Heaven bench at 1920x1080p Ultra settings with tesselation set to normal. Memory clock also OCd by +200mhz.
Room temp is at 30c. So far everything is stable.

QUESTION:
Are these acceptable temps? Would these settings be good for daily use involving gaming and browsing? Should I push them further?

Thank you for your inputs!

 

Context:
I am from a tropical country where room temps range from on 29c on cold mornings to 32c at noon.

Chassis is an ASUS GT301 TUF model with mesh front panel. Image is attached.

This is my first PC build and my first try at overclocking.

 

Specs:
CPU: Ryzen 3 3300x @ 4.0ghz

Chassis: ASUS TUF Gaming GT301 Case w/ x3 ARGB Fans
Cooler: DeepCool Gammaxx GT TUF Gaming Air Cooler
Fans: DeepCool RF120 x3 PWM Fans (front), stock GT301 fans x3 (rear)
MoBo: ASUS TUF Gaming B550M-Plus Wi-Fi
GPU: ASUS TUF Gaming Geforce GTX 1660 Super OC 6GB @ 2070mhz,
RAM: TeamGroup T-Force Delta TUF Gaming Alliance DDR4 3200mhz 16GB (8GBx2)
PSU: Seasonic Core GC 650W 80+ Gold TUFGaming Alliance
SSD: Kingston A2000 500GB M.2 NVMe
HDD: Seagate 2TB BarraCuda 7200rpm

[5GigsOrBust]

The question you're asking can only really be answered with testing. I would recommend testing out both configurations, both stress testing and real world use case testing. Record your temps over time, and go with the configuration that provides the lowest average temps.

[Craggzoid]

Why not mix it up? So you get the constant airflow from fixed fans then the higher airflow form pwm fans when you need it?

 

So have 

Front 2x pwm 1x fixed

Top 2x fixed

Back 1x own

 

As for what is best, you just have to test and see if it makes any difference. I can't remember if having positive pressure (more in that out) or negative was better. 

[KitEvangelista]

Hi all. Sorry took too long to reply.

Thanks to @5GigsOrBust and @Craggzoid for your your answers. I'll try to do your suggestions, but as of writing i'm still looking for answers that don't involve opening my computer. Sorry, i'm too lazy, but much gratitude still.

UPDATE:
So what i've found out is that my CPU thermals max out at 69c using CPU-Z benchmark. My Ryzen 3300x base clock is OCd to 4ghz.
While my GPU temp maxes out at 79c using Uningine Heaven bench at 1920x1080p Ultra settings with tesselation set to normal. Memory clock also OCd by +200mhz.
Room temp is at 30c. So far everything is stable.

QUESTION:
Are these acceptable temps? Would these settings be good for daily use involving gaming and browsing? Should I push them further?

Thank you for your inputs!

[Jeppes]

Normal temps. The gpu cooler is one those cheap garbage models so it runs a bit hotter than decent ones. But as you see from performance, it does not make any difference.