CFM

[cadman420]

Here is the heatsink that I have: http://www.newegg.com/Product/Product.aspx?Item=N82E16835118059

Does anyone know that the CFM is of this fan? I was going to get another 120mm fan for this heatsink but with Higher CFM. On to my next question is would a fan with higher CFM make a huge difference in the temps? Mobo, and CPU in sig.

 

[Sentential]

Closest fan I can come up with that has a similar RPM showing aprox 74CFM. As far as fans go you do sacrifice noise levels; its just a question of how far you'll go. Probably not THIS far:

 

[LennyRhys]

Being a (max) 1350 RPM fan, the airflow won't be very high at all, perhaps 20-25 CFM at the very most. You will get slightly better performance from pretty much any heatsink with a higher CFM fan, but it will be louder and not necessarily better by a big margin.

What are your current load temps, and why are you wanting the extra performance?

 

[cadman420]

LOL, that was awsome, I could start my computer like I would a sport car. But I was looking at this one..

http://www.newegg.com/Product/Product.aspx?Item=N82E16835213001

With a fan controller. My computer is mainly used for gaming, FPS games mostly and it is folding 24/7 so it does tend to build up some heat. I was going to connect that fan to the heatsink and then give it a direct channel out the back of the tower. 74 CFM does sound about right for what it is pushing. When I am gaming my temps will sky rocket. Straight to 60 C and then my system will crash out.

 

[Sentential]

LOL, that was awsome, I could start my computer like I would a sport car. But I was looking at this one..

http://www.newegg.com/Product/Product.aspx?Item=N82E16835213001

With a fan controller. My computer is mainly used for gaming, FPS games mostly and it is folding 24/7 so it does tend to build up some heat. I was going to connect that fan to the heatsink and then give it a direct channel out the back of the tower. 74 CFM does sound about right for what it is pushing. When I am gaming my temps will sky rocket. Straight to 60 C and then my system will crash out.

Ahhhh gotta love Delta they are by far THE most insane fan maker in the world; I love their work. Btw the fan you have listed isnt a whole lot less quiet than the one I linked earlier, example:

 

[cadman420]

I am going to hook up a fan controller this fan so that I can turn it down, but I also don't have to share a room with it. I have my computer in the basement where it sits folding until I call upon it. I have a 120mm fan that pushes 70 CFM, I am going to test it out on my heat sink to see if my temps come down, if so then I will be doing some ordering and some modding to my system. I may stray from the 240 CFM fan but I am going to get something that will push some air for when I am doing some heavy computing.

 

[Diggrr]

You need a 38mm Sanyo-Denki and a fan controller. Nice thick fan with wonderful pressure that'll overcome being mounted against the fins.
Delta works, I love the SD's cause I have 4.

 

[mjw21a]

Should be a pretty decent fan, not too expensive. Does it state anywhere what the min RPM's are on that sucker?

 

[cadman420]

Should be a pretty decent fan, not too expensive. Does it state anywhere what the min RPM's are on that sucker?

minimum, nope. Didn't see anything on the minimum.

 

[cadman420]

You need a 38mm Sanyo-Denki and a fan controller. Nice thick fan with wonderful pressure that'll overcome being mounted against the fins.
Delta works, I love the SD's cause I have 4.

This Delta fan is pushing 240 CFM, I hope I have fins left. Need a nice chrome pipe to go out the back to match the sound.

 

[mjw21a]

Yeah, I've some 243CFM Delta's on the way. 5,500RPM max and 1,550RPM min. 62dBa at max, should be roughly 18fBa pushing 71CFM at min. It's nice to know roughtly what things will be like a min settings as you really won't want that thing maxed out all the time.

http://www.ebay.com.au/itm/140567023940?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

[cadman420]

Yeah, the more I think about it. I would like to have power when I need it. If I could keep my temps down a bit I could squeeze a little bit more mhz out of my 940.

 

[grumperfish]

You need a 38mm Sanyo-Denki and a fan controller. Nice thick fan with wonderful pressure that'll overcome being mounted against the fins.
Delta works, I love the SD's cause I have 4.

I love SD's. Recommended them on another forum because someone had a tightly-packed-fin heatsink and wanted more performance without too much noise. He ended up getting four more to act as case fans

I used to have some 200+ CFM Deltas, but ended up selling them after one of them tried to remove a finger. SD's on the other hand are a nice balanced fan with great pressure, and they're quiet on a controller whereas even low-speed Deltas have high-pitched motor noise that makes me crazy.

 

[cadman420]

If I wanted a Sanyo-Denki fan where would I purchase one? What fan would you recommend for a 120mm.

 

[Diggrr]

Here.
You do pay for the best....

I also found 4 pin PWM ones on eBay for $39 apiece. Just Google "San Ace 120mm".

3,000 years from now they'll be able to dig up my house and find working Sanyo-Denki's...as long as their Mr. Fusion has a fan port!

 

[cadman420]

Hopefully their Mr. Fusion is a power supply for some insane computers.

 

[Diggrr]

It's enough power to make a DeLorean fly and power the flux capacitor!

 

[cadman420]

Still wouldn't be enough for the OC forum crew 3000 years from now. They would over clock the DeLorean and the flux capacitor...LOL

 

[cadman420]

I have found a Cooler Master fan rated for 70 CFM so if LennyRhys is correct on my current fan only pushing 25-30 CFM then this one should double my air flow. If my temps become more stable and or lower then what I am running now then I am going to order an SD or a Delta, I haven't decided on what one yet. I would like one that I can throttle down with a fan controller when I am not gaming. Any objections to this plan? I think it would prove out what I am trying to do.

 

[Diggrr]

Sounds like a decent plan to me. If you're temps still faulter there's no need to spend all that on a big fan for a cooler you'd likely be replacing.

A word of advice on the controller though if it should get that far. Get a big'n, around 20 watts.
I put a 10 watt resistor on one of my SD's today just dinking around, and it got so hot I had to put it in front of the fan to cool it...and that's an industrial resistor built into it's own heatsink!. It's a 1/2 Amp fan (6 watts).