while an 850W PSU can power 2 S3s at stock speed you have to get one with 4 SEPARATE PCI-E cables.. (not sure about that model but id check, the picture shows it only have 2 cables with 2 ends each) i would not use cables that have 2 ends to power a S3 by itself..
also the s3 is really close to its end of life.. if you dont have absolutely free power, id consider getting a s5 instead..
edit.. its also a bronze psu and you want a gold or platinum one.. so id pass on that PSU..
The S3 is relatively cheap and i cant afford an s5. I was going to go with that to start collecting bitcoins and hopefully have enough in about a year to get an s7 or whatever the newer miner model is. electric is about 9 cents where i live. can you give me a specific recommendation on psu?
Pci express is 3x2 correct? If so it does have 2.
Right now im running a u3. the main thing i want to do is test the waters without diving in head first.
With the u3 im basically paying over the current btc price in electric and im only getting about 10 cents worth of btc in a day.