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Is this a good air flow layout?

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I'm going to be building a new gaming rig within a few months so I'm doing some research before I buy everything. I am most likely going with the Corsair 650D as my case. It's going to house:

ASRock P67 Extreme4
i5 2500k
HIS IceQ Turbo HD 6970
Mushkin Enhanced Blackline 8GB 1600
Cooler Master Hyper 212 EVO

I will likely OC the i5 to around 4.0. (This will be my first time OC'ing)

From what I've read the stock fans with the 650D aren't great so I'll be replacing all of them. My plan is to remove both of the HD bays so that I can replace the front 200mm fan with a Cooler Master Megaflow. To make up for the loss of the 3.5 bays I'll be using either http://www.newegg.com/Product/Product.aspx?Item=N82E168... or http://www.newegg.com/Product/Product.aspx?Item=N82E168.... This will also give me either an additional 80mm or 120mm intake. And I'll replace the back 120mm with a nicer 120mm fan, leaving it as an exhaust.

Now what I'm not sure about is if I should replace the top 200mm with another 200mm or if I should do 2x 120 or 2x 140. The top and back will both exhaust and the two front fans will intake. I think I am going to set up the Hyper 212 EVO in a push/pull config having it exhaust to the top. I figure that this way it will pull some heat off of my GPU.

Here's a picture to illustrate what I was planning with the airflow:

More about : good air flow layout

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Power supply Expert

that looks exactly right to me

exhausting out the back and top is perfect

is that a bottom PSU or top PSU case?
looks like a bottom PSU case I think
which is great

either way should work well

I would go with a single 200mm fan for top
it can move more air with lower RPM so it will help it to be quieter
2 x 120s will be louder and not really any more effective IMHO


if your case doesnt have a fan control then consider getting one
for a 5.25 bay

during cooler months you can lower the speeds
and raise it when you are doing something intensive like gaming

nice overall job :) 

Yeah it's a bottom mount. I forgot to put the arrows for that. The case has a fan controller but I'm not sure how many fans it supports I'm guessing it supports at least 3 though. If not I'll get one for a 5.25 bay. Do you think it will be worth the money to get the 5.25" to 3.5" bay converters that have a fan in the front?

I also should have mentioned that I keep my room very cool. I keep the ceiling fan on and the heat off in here during the winter because the heat from the rest of the house keeps it just the right temp. It's usually around 65-70F in here maybe even lower I've never measured the temps lol. So I think that will help a lot in keeping everything cool.
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Power supply Expert

i would try without the fan converter first and see if you need it
why spend the money if you are fine without it

also the Sandybridges run really cool

and if your temps stay 65-70 all year round

you should be doing great

and that 2500K has an unlocked multiplier and even on stock Intel HSF
I have read of people hitting 4.0 easily

so I bet you could probably get closer to 4.5 and still be okay

the 212 Evo is a great cooler from all reviews

plus you have a good flow

try to run PSU wires underneath the mobo if case allows it

good cable management is very important in case flow

dont want any turbulence of air causing a dead spot

that means it swirls around not really moving any air

bad cable management can do that

if that dead spot ends up over your GPU then that causes a problem

instead of a front case converter cage fan

maybe consider a PCI slot cooler

would help move air away from gpu and out back from PCIe bus

something like these

http://www.newegg.com/Product/ProductList.aspx?Submit=E...

look for one that the fan inlet faces gpu

this way that air gets thrown out of the case without getting close to CPU

Power supply Expert

Shavako said:
Also, I want more air coming in than I do going out right? or is it the other way?


there has been a thousand forum threads on the negative air pressure (more exhaust) vs positive air pressure (more intake) debate

really no right or wrong

me personally I like more exhaust than intake creating almost a suction effect

does cause more dust problems though

but if you are interested just search "positive vs negative air pressure" on Toms or Google
will find alot of threads

Now that I think about it though, to put in a Cooler Master Megaflow I'll have to remove both of the HDD cages so I may end up NEEDING the 5.25 bay fan =/. Gotta see if I can mount one of those 3.5 cages closer to the PSU like you can on the 800D.

I didn't know about those PCI slot fans, those are pretty neat. I'll probably throw one of those into my purchase just because they're inexpensive.

This case does seem like it has great cable management so I should have no blockage as long as I plan out my cable routing.
Power supply Expert

I think you are going to really good with case temps

you really have the right idea there

and again Sandy Bridge runs really cool
sometimes barely over room temp


I think it looks to be a great build

As it turns out I can mount the HD cage on the base closer to the PSU giving me room for the Megaflow. So I'm gonna ditch the 5.25 HD bay/fan for now. It's looking like I'm going to have more of a negative pressure as it'll be 110 CFM and 110 + 69 + whatever the 212 Evo adds to that out. The case has a dust filter covering the front intake fan and the PSU fan though plus it'll be on hardwood floors so I don't think dust will be all that bad. I'll probably just have to take some canned air to the insides and the filters every now and then.
Power supply Expert

thank you for selecting me as best answer
click on my avatar picture and send me a private message
when you have the build together with temps
I would be very curious
Best Regards
King SMP
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