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Intake fan question

post #1 of 2
Thread Starter 
So I'm planning out my next build, and I'm looking to do water cooling for the first time. I've wanted to do it for awhile, but couldn't get the nerve up to break out of my comfort zone until now. Anyway . . .

I'm planning on drowning cpu, mobo full block, 2 GPU's, and 2 360 rads (debating full push/pull or not)

I had a question about intake fans. How much air intake is actually needed for a water cooled build?

This pic is a caselabs M8 that I am considering.


Uploaded with ImageShack.us

In that case, mounting both rads on top (1 per side) with 6 exhaust fans total, then 3 intake fans per side down the front- 6 total, and another couple fans on the back exhausting - is there a need to add fans to the bottom holes as seen in the pick above?

Typically in an Aircooled case I would use them as my intake from the bottom and all other fans would be set for exhaust. I'm just not sure if it is needed or not in a water cooled situation. Looking at a few OCN's builds some have sound proof foam with only a fan or two (stallion's beautiful UFO) while other's using cases like the extended ascension have 30+ fans with their water cooled setup.

If I can save not spendind on additional fans, then great! If there is an actual benefit, then I have no issue buying them either.

All that to ask - how many intake fans are needed? Is there actually any benefit to using additional fan intake in the bottom of the case or would you simply just seal off the openings?

Thanks

EDIT: The build in my sig is my current Rig - not my new build
post #2 of 2
It's up to you really.. helps if you are not running blocks on the card and using stock coolers that love air comming into them from everywhere... but since you are on water, all you should care about is having good push or push pull on the radiator blowing hot air from inside to ouside the case

All my fans are intake because theres no hot air inside anyway... my room is very cold so they are just blowing air inside (gentle typhoons 1450) some are 1850, all my rads exhaust from the top
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