Quad Cross-Fire Air Cooling in Case

[Reckman]

Anyone had luck aircooling a quad cross-fire in a case?

Trying to put some cheap litecoin rigs together for ebay and figured quad R9 270 would be cheapest....but having a hell of a time cooling them four of them in a case

[crazyates]

If you're running 4 GPUs per Motherboard, you have 2 options:

Riser cables, lifting the GPUs off the motherboard and giving them some space between the cards for airflow. This is usually done outside of a normal ATX case, and done in milk crates or a shelf of some kind.

Or, watercooling. I've seen some 4x 7970 rigs inside a normal PC gaming case with a big ol' rad sitting up top keeping the GPUs nice and cool. Water cooling usually causes the card to draw less power anyways, so it also helps on your PSU load.

[Reckman]

After trying everything else, ended up tossing two 80mm server fans at the base blowing into the cards and 4 120mm fans on the side pulling hot air.

Stable at 65 deg =) loud as shit though

[crazyates]

After trying everything else, ended up tossing two 80mm server fans at the base blowing into the cards and 4 120mm fans on the side pulling hot air.

Stable at 65 deg =) loud as shit though

Can you undervolt the cards? What brand/model GPU do you have? When I first started GPU mining on my gaming rig, I had 3 GPUs back to back, and CGMiner would constantly downclock to keep the temps below 75C. I started undervolting, and the temps drastically improved, which meant less throttling, which meant better hashrates.

[Reckman]

standard r9 270 gigabyte

I don't have pics of the new fans, but they are blowing right into the ends of the cards, probably 150 cfm each they are crazy loud