OT: fans

NicolSD wrote on 6/9/2012, 2:08 PM
I know it's off topic, but the latest quiet fans that have come out over the last two years make a huge difference in a person's computing experience. I use a Corsair H80 to cool my CPU and whenever I started rendering, my computer turned into a jet engine. It wasn't all that noisy before but it certainly was noticeable. It was the kind of noise level that you always noticed it was there. It was just too noisy to ever go become unnoticeable.

This week, I decided I was going to do something about it. I replaced the Corsair fans with Noctuas NF-P12. And the rest of the computer fans were all replaced with Corsair's new AF quiet series fans. Did it make a difference? Absolutely.

When I render, I hear a relatively quiet whining noise. That's it. Otherwise, I hear absolutely nothing at all. My computer has become completely quiet. The case sits about two feet away from me and there is nothing but silence as far as I am concerned.

But what about cooling? The ambient temperature inside the computer is about quite a bit cooler than before. The CPU itself is about two degrees Celsius cooler than before the changes. When I push the machine, the difference is not enormous but still on the lower side. As for the GPU, the lower ambient temperature makes quite a difference when rendering. My card now runs 6 to 8 degrees Celsius cooler. That's 11 to 14 degrees farenheight!

At first glance, the numbers on the box would scare me away. The Corsair AF120 Quiet Series only has a CFM of 39.88. But I discovered this week that the CFMs are not the be all and end all.

I would recommend going this route to anyone who wants to concentrate on the video's sound and not have to tune out the computer's noise. I am very happy I did.

Comments

TheHappyFriar wrote on 6/9/2012, 7:32 PM
I don't know how old your fan is but they can get noisy when they get older.

The temperature lowering could be due to the removal of dust on the old heat sink.

However, it's great it's quite now! :) Years ago (don't read about it much now) some "hard core" gamers who OC'ed their systems would make duct work around the inside to improve air flow (Nintendo did this with the GameCube & Wii, it had a small fan that was a lot quieter then the competition). They'd also get sound proofing boards (foam?) and put them on the inside of their cases, at joints, etc. It really did make a difference. I remember reading one time about a guy who made a custom water cooler with a 5 gallon bucket of water and it took less then 30 minutes to heat the water to bath temperature. :)
NicolSD wrote on 6/9/2012, 7:37 PM
My system is only seven months old. The H80 fans have always been noisy at best and extremely noisy at worse. I am now in heaven.
TheHappyFriar wrote on 6/9/2012, 9:18 PM
Were those stock CPU fans? I've read that some stock fans are horrible, they almost purposely put a bad fan in the box for you to buy a new one.
craftech wrote on 6/10/2012, 6:45 AM
In general sleeve-bearing fans are quieter than ball-bearing fans, but they do not last as long. In terms of cooling, removing the case and not inserting as many fans works really well to keep down temperatures, but you have to vacuum the interior regularly.

John

JJKizak wrote on 6/10/2012, 7:32 AM
Like JJK says when it requires vacuuming it is time to update and replace and give the old stuff to relatives. (I approve this message)
JJK
NicolSD wrote on 6/10/2012, 11:26 AM
The case vacuuming problem only happens when you have negative air flow (more air being sucked out than in by the fans). If you have positive air flow (more fans blow-in air than push it out), then there is a lot less of a problem of dust building up inside your computer. Give it a try.

But it's always a good idea to blow the dust (not vacuum) out of the case once per year.
craftech wrote on 6/11/2012, 6:59 AM
My suggestion was to run the computer with less fans and the case cover off. It will collect more dust that way and require regular vacuuming. That's what I was referring to.

John
[r]Evolution wrote on 6/11/2012, 9:49 AM
My Mac Pro Tower is Super Quiet. Sometimes I'll hear my Western Digital HD's awaken, but other than that, the Case, Fans, etc. are never heard. If/when I upgrade, being able to hear the fans (loud computer) will be a deal breaker for me.
NicolSD wrote on 6/11/2012, 12:05 PM
John wrote: "My suggestion was to run the computer with less fans and the case cover off. It will collect more dust that way and require regular vacuuming. That's what I was referring to."

There are two reasons not to leave the side panel open:

1- I have cats
2- The computer rests on a carpeted floor

Ergo, the air going into the computer has to be filtered.