So, i've been keeping tabs on bitcoins for 2 years now, missed that train and finally decided that I want to get into altcoin mining.
I was following this guide
http://www.coinminingrigs.com/how-to-build-a-6-gpu-mining-rig/#comment-36695but am looking for second opinions.
Since the 280x and 290x are way overpriced now. I went ahead and already ordered, and am awaiting delivery of six, gigabyte R9 270 ($180). I figured I might as well bite the bullet cus they are selling out as we speak, i could always return it if I test one and it doesn't work out.
So I have just three questions:
1) Is this really the best card available now initial price to hashrate wise? or would you have gotten the slightly more energy efficient 280x at $420?
two, R9 270 producing 900 kh/s drawing 400w vs a single R9 280 producing 750 kh/s drawing 300w. Maybe I should have gotten the 280x. Havent even received the units and i'm already feeling buyer's remorse haha.
The reason I didn't automatically go with the 280x is because all the 1600w PSU's are out of stock.
I guess #1 isn't really a question and I'm just looking for someone to reaffirm my purchase. lol.
2) Can someone recommend a place to get powered risers that wont blow up in my face? Was thinking about ordering from here:
http://www.ebay.com/itm/PCI-E-16X-to-1X-Adapter-Riser-Card-Flex-Extension-Cable-w-Molex-Power-Connector-/181285248039?pt=LH_DefaultDomain_2&hash=item2a35715c273) Is this 1300w PSU a good choice?
http://www.bhphotovideo.com/bnh/controller/home?O=&sku=1012719&Q=&is=REG&A=detailsor should I wait for the 1600w LEPA to be available again, in case I want to upgrade the cards in the future (anyone know when?).
I'm not in a hurry since I have other computers I could temporarily set these cards in.