Quote from: boraxo on February 19, 2014, 08:32:05 PM

Quote from: fcode on February 19, 2014, 08:28:47 PM

Quote from: boraxo on February 19, 2014, 03:44:28 PM

Quote from: pallas on February 19, 2014, 03:17:45 PM

Try putting a fan (at least 12cm) right at r290(x) side (near the card fan, 90 degrees to the mainboard), blowing in the card direction. Helped me reducing the noise greatly (it also reduced power consumption, the r290 fan sucks a lot of electricity when turning fast).

Not enough room to do that on my rig. It's not on a tabletop, rather in a desktop tower case. The 290X is on the first (physically, the upper) pci-e slot and the 260X sits below it on the second pci-e slot. Out from the end of the 290X, the hard disk carrier occupies the rest of the space to the front of the case.

I point a fan at the side of the tower case. So the fan is parallel with the motherboard blowing fresh outside air at the top of the cards and their fans suck that in. I think that might be what he meant, putting an extra fan blowing in to the existing card's fan doesn't make any sense.

I think he meant putting a fan near the front of the case, blowing across the top (side without a fan) of the 290X. But in my tower case there just isn't room. I have an 80 mm fan arranged as you suggest, blowing across the short dimension of the cards onto the motherboard (the side case cover is off).

Exactly. The other configuration (parallel to the mainboard) has proven to be much less effective (at least in my case... And in my case he he ;-) )