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XenoMorpH

CM690 official airflow

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VALKYRIE    11
True....

Note that I'm using a watercooling setup. Wouldn't the total warm air production be much lower than using aircooling...?

If we have two identical ( exactly the same ) computers ,just one of them aircooled and the other watercooled , why you think the that the total heat production of the watercooled PC is less ?

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My CM 690 fans are:

Top Exhaust: (2) 120mm Yate Loon Medium speed fans

Rear Exhaust: (1) Antec Tricool 120mm w/fan controller

Side Exhaust (behind motherboard): (1) 80x80x15 Evercool fan

Bottom Side Case Exhaust: (1) Antec Tricool 120mm w/fan controller

Bottom Intake: (1) 120mm Yate Loon Medium speed fan

Front Intake: (1) 120mm Yate Loon Medium speed fan

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XenoMorpH    2

I just changed the first top fan to exhaust....sounds strange but the cpu temp was raised by 2-4C. So basicly, the first fan as an inlet wasn't that bad at all.

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JokePCM    0

Ihave:

Exhaust:

1xTop 120mm

1xRear 120mm

Intake:

1xBottom 120mm

1xFront 120mm

PS:How can i have a second fan(120mm) in front?

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VALKYRIE    11

You can use the bottom plastic bracket installed at the front of the case , but you can use this Sharkoon Rebel9 metal bracket to have better look

DSC_0134.jpg

312505.jpg

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heimie    1

Well, without getting into details, I prefer Negative pressure in any rig I build. One of the biggest things that needs to be checked whether you are of the Positive or negative school is to check your air flow for "dead spots". Positive airflow tends to produce more of these but either can. I take a Smoke producing item (Cigarette if you smoke, incense is you don't) and hold it alternately by each intake fan. All of my Cases have windows and leds so tracking the smoke through the case is pretty easy for me. Watch carefully for places that the smoke "sits" in or barely moves. Play with your fan orientation and placement until you get rid of any dead areas. Under the bottom GPU is a bad spot as is the top of the bay drive area. With negative pressure, you can also use the smoke to see where besides fan intakes you're pulling in air and adjust that as well with any number of materials used to "block or adjust free air entry into your rig..

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