06-17-2013, 12:51 PM
yeah, ~ 17.7 GH/s at 1000 Mhz. same speed as 2x 7970 at the same clock.
the heatsink on the 7990 is really nice, I think the problem is a combination of the slow fans and the vent design. the fans spin at a very low rpm and do not push much air at all. and the other problem is that it exhausts into the chassis, instead of out the back. that's always a really bad idea.
however, this cooler was originally designed for the FirePro S10000, and therefore originally designed with server use in mind. so i'm really hoping that they will do fine in a Tyan chassis. i assume that they will since amd recently built a Tyan box populated with eight S10000 cards with this exact cooling solution. but we'll find out when the Tyan chassis for this cluster arrive this week.
the heatsink on the 7990 is really nice, I think the problem is a combination of the slow fans and the vent design. the fans spin at a very low rpm and do not push much air at all. and the other problem is that it exhausts into the chassis, instead of out the back. that's always a really bad idea.
however, this cooler was originally designed for the FirePro S10000, and therefore originally designed with server use in mind. so i'm really hoping that they will do fine in a Tyan chassis. i assume that they will since amd recently built a Tyan box populated with eight S10000 cards with this exact cooling solution. but we'll find out when the Tyan chassis for this cluster arrive this week.