Question This noise is coming from somewhere in my PC and I tried all this. Any help is appreciated.

[Aeacus]

Do you think these settings might cause any issues with heating or any other new issue?

As i said, it is unknown for how long you can run the fan with faulty bearing.

Could it be the case that the air pressure inside the chassis from the beginning evolved slowly into this faulty fan issue??

Everything is possible.

Also, there are no tests made, on the longevity of GPU fans when you have extreme negative pressure inside the PC. Which you had.

Coz it looked aesthetically pleasing, looking the RGB of fans through the glass panel ( thats what the guy who built my setup did).

The purpose of case fans is not to look pretty, but provide sufficient cooling for the PC components.

The case has 3 fans above with exhaust out, 3 fans below ( DIRECTLY BELOW THE GPU FANS) to exhaust air out, and 3 fans on the side ways (AIO Fans) to suck air in.

Then it is still severe negative pressure.

Also, aren't there any rear or front fans?
Btw, what PC case you actually have? Since from description, it sounds like fishbowl case, which is pretty to look at, but in terms of airflow, is terrible.

 

[Eershaa]

The purpose of case fans is not to look pretty, but provide sufficient cooling for the PC components.

trust me, i understand it now. and i myself wanna change the fans position but as soon as i opened the back panel, there were so many wires, that i didn't dare to make any changes. my AIO fans are even wrongly aligned with my motherboard, and i have to change them too, but without someone to guide and opening and disconnecting and then reconnecting might just cause more trouble. it was here itself on Toms Hardware that i got the solution for my AIO fans issue.

Then it is still severe negative pressure.

Also, aren't there any rear or front fans?
Btw, what PC case you actually have? Since from description, it sounds like fishbowl case, which is pretty to look at, but in terms of airflow, is terrible.

This is my case. Lian Li 011 Dynamic Evo (https://lian-li.com/product/o11-dynamic-evo/) . A total of 10 fans could be installed (120 mm) and ive 9 installed. the one in the back above where DP port is connected in the GPU is empty. I understand it still is bad airflow, is there anything i can manually do?

 

[Aeacus]

is there anything i can manually do?

PC case airflow rule of thumb: front and bottom - intake; top and rear - exhaust.
Side fans can be either intake or exhaust, depending where they are located.

For your conf, bottom fans i'd flip all around, for them to be intake, rather than exhaust.
Since in exhaust form, you will be starving GPU from airflow, since 3x 120mm fans will pull all the air from the GPU and it's fans. Moreover, bottom exhaust fans will work against GPU fans. GPU fans try to pull air upwards, towards GPU heatsink, while bottom fans pull air downwards, away from GPU fans.

And when GPU fans are stopped, bottom fans can actually force GPU fans to spin the other way around, creating far more severe issue, rather than lack of airflow for the GPU. Namely, when fan isn't powered and it is spun backwards, it will generate electricity and feed that electricity back to GPU. That, for the very least, can overload and fry the fan headers on GPU. Or the worst, kill entire GPU.

This, bottom fans drawing air from GPU, whereby GPU fans have work far harder than usual, can be one of the leading causes why one of the fan bearings failed partly on you. Same can happen with other two GPU fans as well, if you keep the bottom fans as exhaust.


Since 011 Dynamic Evo is fishbowl case with emphasis on looks, rather than the main purpose - PC components cooling, there is no ideal setup you can do, regarding fan placement.

Best for cooling would be:
Bottom - intake
Top - exhaust
Rear - exhaust
Side - exhaust

This way, you'd have negative pressure, with 3x 120mm (bottom) as intake and 7x 120mm as exhaust.
If you run all fans at same RPM, then you'd have quite severe negative pressure, but at least, no fan would work against other fans and you'd have airflow path inside the PC case.

Another option is:
Bottom - intake
Top - exhaust
Rear - exhaust
Side - intake

This way, you'd have positive pressure, with 6x 120mm as intake and 4x 120mm as exhaust. Not as good on cooling as negative pressure, but leaning more towards neutral pressure than option #1 i described. Still, you can normalize it to neutral pressure by running intake fans at lower RPM, compared to exhaust fans.

All-in-all, poor PC case in terms of airflow.