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Determining Fan Requirements For My New Build - Help Pls?

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March 4, 2010 11:08:36 AM

Ok, just purchased and am currently running:

RAIDMAX Smilodon Case
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
i7 860
EVGA P55 LE Mobo
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
XFX 4650 GPU (I don't game)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
G Skill DDR3 1600 RipJaws
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Intel X25-M SSD

Stock Fan setup with the Smilodon is two 120mms front and back with 2 80mms on one side. I'm currently running the stock intel CPU fan. Problem: this thing is way too loud for me, probably due to the fact that all the case fans are molex and running at 100%. So I need to purchase a new cooling setup (including CPU fan to reduce noise and allow for higher OC) but have no idea what my requirements are in terms of airflow. The graphics card runs super cool and will not be overclocked, so is it really just the CPU I have to worry about?

I'm looking at purchasing the Corsair H50 (which comes with a 120mm rear fan)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I'm hoping I can just pair this with a Scythe 120mm for the front and just run the case without any 80mm side fans at all. Would that be alright or are temps going to be too high in the case/I'll have dust issues? If thats an ok setup what sort of cfm should I be looking at for the front fan. If thats not an ok setup what else do I require?

Thanks!
March 4, 2010 11:17:40 AM

^ What you need is this for the case fans...
Sunbeam RHK-BA Rheobus 5.25" Bay 4 Channel 20W Fan Controller Panel (Black
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

And I would suggest this CPU cooler over that one...
CM Hyper 212+ - Better value for money, can easily handle 3.8GHz and maybe even 4GHz...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

More cooling, then this...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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March 4, 2010 11:28:10 AM

Thanks for the post gkay.

I think I'd rather just buy good fans, connect them to the mobo and adjust them through bios than spend the money on a fan controller. I *really* hate dealing with molex connectors. With regards to the other cooling options, my case is only 8 inches wide and the mobo panel flips down, a feature I like. If I go with your other CPU cooler options I'm not sure if they'll fit and even if they do they're going to hit the top mounted PSU when I try to flip the mobo side panel down.

Thanks.
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March 5, 2010 2:09:27 AM

^ Well I suggested that fan controller as it would be cheaper than replacing all the case fans with better ones...But its your call though...

And as for the CPU cooler, if your case is 8" wide, then it might be a tight fit- but will fit though...Then that Corsair H50 will be a very good option...
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March 5, 2010 2:19:30 AM

I have to agree with gkay09 with the sunbeam fan controller and the CM 212+ as I run them both. As for performance fans that offer excellent cooling, checking out these coolermaster 120mms.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I run 4 of them and my system is nice and cool, and quiet. At full speed they push a ton of air, but with the controller you can adjust it to your specific level. I like silent during the winter, but during the summer were my AC will be goin and im on 3rd floor, ill have them pushed to max.

Good Luck
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April 15, 2010 6:24:36 PM

Does anyone have any experience putting a Hyper 212 into a Smilodon? I bought one but didn't mount it because I was afraid it wasn't going to fit with the side window fan/dirktooth in there. I didn't get so far as actually setting it on the CPU, because I wanted to be able to return it.

Any thoughts?
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April 15, 2010 6:44:55 PM

digable said:
Ok, just purchased and am currently running:

RAIDMAX Smilodon Case
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
i7 860
EVGA P55 LE Mobo
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
XFX 4650 GPU (I don't game)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
G Skill DDR3 1600 RipJaws
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Intel X25-M SSD

Stock Fan setup with the Smilodon is two 120mms front and back with 2 80mms on one side. I'm currently running the stock intel CPU fan. Problem: this thing is way too loud for me, probably due to the fact that all the case fans are molex and running at 100%. So I need to purchase a new cooling setup (including CPU fan to reduce noise and allow for higher OC) but have no idea what my requirements are in terms of airflow. The graphics card runs super cool and will not be overclocked, so is it really just the CPU I have to worry about?

I'm looking at purchasing the Corsair H50 (which comes with a 120mm rear fan)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I'm hoping I can just pair this with a Scythe 120mm for the front and just run the case without any 80mm side fans at all. Would that be alright or are temps going to be too high in the case/I'll have dust issues? If thats an ok setup what sort of cfm should I be looking at for the front fan. If thats not an ok setup what else do I require?

Thanks!


I'm not trying to bash on your case, because I'll be the first to admit it looks pretty bad ass. But Raidmax kinda goes cheapo on their cases. Very plasticky. Also, I wasnt impressed at all with my Raidmax Enzo case when it came to airflow. Sure it had some, but it was like a bunch of little 80mm fans chuggin away doin their best.

I can say the H50 will perform well in your case for 2 reasons. It takes air in from the rear of the case with its own 120mm fan. And 2, not much in your case besides the CPU will really be getting very hot. The SSD will run very cool as will the 4650. One thing to remember tho, with removal of a HSF you are decreasing airflow against your motherboard. So keep an eye on those temps.

Also if I remember correctly, your case uses the one rear 120mm fan as the only exhaust? If so, the H50 probably wont be ideal, because it reverses the rear 120mm to make it a cold air intake for the H50's radiator. Meaning you will have no feasible exhaust besides maybe a side exhaust fan? 80mm or maybe 1200mm? But even with a 120mm side fan, with a front intake, and a back intake, the air dynamics wont be smooth to exit out of the side.

So I basically argued for the H50, then talked myself out of it. Uh.. the H50 works good in my Antec case because I have ample fans. For you, get a quiet air HSF thats low profile. Win.
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