Big ol' Corsair 800D - possible to run with no exhaust fans?

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12 Mar 2010
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195
Yes, I know this case is 10 years old and I should probably get a new case, but I like the big old beast and it is certainly built to last a lifetime....

Anyhow, I'm building a new system in my old case here, and this time I don't intend to use an AIO but have a Dark Rock Pro ready to go. In the past I have had a 240 radiator at the top as intake, and a bottom 140 intake, with a 140 exhaust at the back. It has been cool, but with cpu fans going slow on idle it also seems the vents around the back are drawing in air as the rear exhaust fan seems to push quite a bit more air out than the bottom and cpu suck in, probably due to lack of filters on the exhaust.

I am considering with the new tower cooler I could run bottom and rear intake 140's, and have the tower cooler taking air towards the front of the case. I was thinking of blocking the top vents, and having all air exit the case through the vent below the expansion cards, and through the top rear vent. Being massive, I think there would be room to do this. The bottom intake fan would help air from the cpu cooler to the top of the case, positive pressure would ensure air needs to move out of the case, and air would also then be moving out past the gpu.

Previously I've had many different configurations with this case, as it has so many options to play with. 3 top exhausts would be one easy fix, but I am trying to reduce the number of fans/top openings and thus noise. There's not many cases this would work in, but there's space above the mainboard here to mount a 360 rad with fans front and back, so if I can get the air to go back that way after coming in further down, I think the key parts of the system would have a decent airflow.

So, 2x140mm intakes and passive exhaust? Has anyone tried this, or got any feedback?
 
It should be ok - but if I was going to be putting the minimum number of fans in this case I would probably do 1 intake and 1 exhaust or just rear and top exhausts.

What spec system is going in the old beast?
 
I have enthoo luxe2 ~719
Not small by any means though
Possibly not as large as 800d
I have front and bottom intake with
Top exhaust
Works fine though I mounted the
Rear fan anyway
That way it's already there had it
Been needed
 
What spec system is going in the old beast?

3900x on an MSI Prestige Creation. Most of the other boards didn't seem to have enough USB ports, although I was quite keen on the Unify. The MSI cashback offer and the current discount OCUK have made my decision, but if I had left it another couple of days I could have had the chip cheaper too. Old board was an x58 with an i7 980x, with every expansion slot filled up bar a single sata port and the IDE, as the IDE controller became unstable a good few years back.
 
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