[SOLVED] Very Loud Fan

[Plicker19]

My Computer's Fans are very loud. I don't know what th problem is, I just know that it has been doing it ever since I got it. Thanks!

 

[ThatSourMelon]

My Computer's Fans are very loud. I don't know what th problem is, I just know that it has been doing it ever since I got it. Thanks!

Would you mind giving a little more information? What kind of fans and cpu cooler do you have, what’s your average cpu/system temperature?

 

[curiousmcgeorge]

1. What is the case (and fans and how many), and the CPU Cooler, and when do you hear the noise? At idle? At full load? What is the CPU, and did you over clock it?

2. Install some kind of monitoring software so you know which fan is spinning fast. CPUID HWMonitor or HWiNFO64 for example.

3. I f you turn on the computer with the case open, you should be able to hear which fan is making noise.

If you are running a crappy stock cooler like the Wraith Stealth while OCed and under high load then yes I'd expect it to be loud.

 

[geofelt]

More detail is in order.
A fan makes noise when running at it's rated rpm which is the default.
Then, also, your pc will have many fans.
cooler, case, psu.
To identify the fan/s in question, put a paper tube to your ear and listen to each one.

 

[Plicker19]

I have speedfan on there right now. I have no idea what the exhaust fan is but the cpu fan is a cooler master. need pictures?

 

[Karadjgne]

That makes just 2 fans, cpu cooler and exhaust. With no intake, the inside of the pc will be quite warm, and you cannot cool a cpu below ambient temps. In this case, the cpu cooler ambient air is the air inside the case. So without sufficient airflow, the cpu is going to run quite hot. Which means it's cooler fan will be spinning fast and loud. The case temp monitor will be seeing high temps too, so the exhaust fan will be spinning fast and loud.

Most of the issue here is lack of airflow. Your pc 'insides' are literally creating a hot-box, so the existing fans are running fast to compensate. You need airflow. At least 1 intake fan. If your case doesn't allow the additional intake fan, your only option will be better fans on cpu cooler and exhaust, ones that are naturally quieter than what's there now.

 

[Plicker19]

So your'e saying that I should put an intake fan at the front of the pc for better ventilation?

 

[Karadjgne]

Yes. Whatever you can do to move cooler air in the front. Right now the exhaust is trying to get rid of the heat by itself, it needs help. Put cool air in front pushes the heat towards the back. Makes the whole process more effective. More effective cooling = lower fan speeds.

 

[Plicker19]

how could I do it with this case?

 

[geofelt]

Your case is a poor one for airflow and cooling.
It looks like there is no front intake fan mount.
The best you can do is a likely a rear exhaust fan.
What cpu and gpu do you have inside?

Speedfan can monitor and adjust fans connected to the motherboard only.
That would be the cpu cooler fan, likely a noisy 92mm fan.
There is a tradeoff between cooling and noise.
If you are using a stock cooler, you could reduce noise with an aftermarket tower that uses a quieter 120m fan.

How about a photo of the insides of the case?

 

[Plicker19]

Your case is a poor one for airflow and cooling.
It looks like there is no front intake fan mount.
The best you can do is a likely a rear exhaust fan.
What cpu and gpu do you have inside?

Speedfan can monitor and adjust fans connected to the motherboard only.
That would be the cpu cooler fan, likely a noisy 92mm fan.
There is a tradeoff between cooling and noise.
If you are using a stock cooler, you could reduce noise with an aftermarket tower that uses a quieter 120m fan.

How about a photo of the insides of the case?

I can use speedfan to control both the cpu and the exhaust fan, but the cpu fan is the noisy one.
CPU: AMD Athlon XP
GPU: VIA
what about the vents at the bottom of the front panel?

 

[Karadjgne]

There's always case modifications. Like velcro, zip ties etc. If there's room to actually physically put a fan behind those vents somehow, that's gonna go a long way to helping.

Linus Tech did a test years ago with a case. 1 exhaust fan, cpu temp 90°C. Same test with 1 exhaust and 1 intake, cpu 70°C. Airflow is that important.

Your cpu fan is noisy because it's spinning at high rates trying to cool a hot cpu. With a decent supply of cooler air, that fan/heatsink becomes more effective, so the cpu runs cooler under loads, fan can spin slower and quieter.

 

[Plicker19]

There's always case modifications. Like velcro, zip ties etc. If there's room to actually physically put a fan behind those vents somehow, that's gonna go a long way to helping.

Linus Tech did a test years ago with a case. 1 exhaust fan, cpu temp 90°C. Same test with 1 exhaust and 1 intake, cpu 70°C. Airflow is that important.

Your cpu fan is noisy because it's spinning at high rates trying to cool a hot cpu. With a decent supply of cooler air, that fan/heatsink becomes more effective, so the cpu runs cooler under loads, fan can spin slower and quieter.

I found a fan with th correct connection. Thanks!