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Windows 7: Loud PC Fans

10 Jun 2014   #11

Windows 10 64 bit

The user has an "S" model which is a compact case model, not a full size desktop case. Because of limited space the custom Dell cooler is just about all that will fit.

With the "same but different" motherboard and what the replacement was intended for, it can present the problem.

However, I too agree that removing the CPU cooler assembly and the CPU is not very wise.

My System SpecsSystem Spec
10 Jun 2014   #12

Windows 7 Home Premuim 64 Bit

The sizes are 80mm
My System SpecsSystem Spec
10 Jun 2014   #13

Windows 7 Home Premuim 64 Bit

So, how much thermal paste should I be using? I have always been told to use an amount about the size of two grains of rice.

So, leave the CPU heatsink and fan on when cleaning out dust?
My System SpecsSystem Spec

10 Jun 2014   #14

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

Two grains of rice would be close enough. Some people spread it around a bit and others just let the pressure of the cooler mounting mechanism spread it out as the CPU heats up.

Yeah, I wouldn't bother with replacing the paste. I would of course monitor temperatures so I'd know if case temperatures got to a dangerous level.

I never even remove dust--but I keep my PC several feet off the floor. Dust buildup is negligible.

Use something to monitor your temps and fans speeds.

And you need to be sure which fan is making the noise: case fan or power supply fan. If it is the power supply fan, your best bet is to replace the entire power supply because changing power supply fans can be dangerous for an amateur without proper knowledge. And I'm not sure how easy that is to do on a Dell like yours.

The Nexus, Yate Loon, and Noiseblocker case fans at the link below are likely quieter than what you have now, but you can't expect miracles from small diameter fans running at 1500 RPM and higher.

It's a tradeoff between temperatures and noise. Nothing wrong with 50 or 60 degree case temperatures if that means a quieter fan. Some people are obsessed with driving temperatures down into the 30s, but if you tried that with 80 mm fans it likely wouldn't be quiet.

You have to experiment a bit if you are interested enough.

Fans here:

80mm Fans
My System SpecsSystem Spec
10 Jun 2014   #15

Windows 7 Home Premuim 64 Bit

I Fixed the problem!

Turns out, my Fans were plugged into the wrong plugs.

I switched the fans, so that Fan 1 is now Fan 3 and vice versa

Fan 3 (old Fan 1) is reading 1600 or so RPM, which is half of the speed (3500+)

The other fan is reading the same speed as before.

My system is now quiet. I will keep checking Speedfan to make sure that my CPU stays within the proper temperature ranges.
My System SpecsSystem Spec

 Loud PC Fans

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