FYI.. i have one of these - I can stable overclock to 1225, after that it will start locking up or reseting. My average has been 740 MH/s per GPU - so total of 1.48 GH/s - been running for 3 weeks at that with no problem. Temps stay low 50's in a 70 degree F ambient, but even when temps got up higher I have not left the mod 60's.
On the radiator, one fan is attached, the other is included. In a higher ambient environment you really need to attach the second fan on the other side. They are decent fans - moving more air that basic case fans but not super high CFM.
Has 3 225W power connectors - I run with a silverstone 1500W - Dont use shared or split connectors for these - if you can pull from different power rails for each connector - you need to. I managed to trip the P/S a couple times until i distributed it correctly. have room on the board for 2 more 7970's but with the radiator fans that puts me right up at the p/s limits with this and then the 2 7970's.
Pretty cool card all-in-all. Heard there were only 1000 sold in US. Got it mostly out of curiosity - been mining it for a while and it is definitely a work horse and contributes a lot less to my server room ambient that other 7970's. And it is nice for high density situations.. I kept the case and parts pristine - i am quite certain if i sell it in a year or so i can recoup half of what I paid or more so it was a fun experiment and i probably won't loose anything on it.
thanks for review. I have ordered it a week ago, hope to mine with it soon.
these cards are limited to 1000 globaly, not only US.