I'm looking to build a small mining rig since I have a couple of spare video cards hanging around from upgrades on the single card I currently mine with. My intentions are to use the 5670 and the 6850 that I have to spare in this rig. I also have a 5870 that is what I am currently mining with. If anyone can suggest improvements to the setup I've come up with that are in the same price range, I'll happily drop a small BTC reward their way if they provide a wallet address.
A couple of notes about the environment for the system. I've specified a case because where I live is dusty everywhere, doesn't matter if you have air filters running, doors always closed, etc... There will be dust around. My current mining card (5870) runs in my main desktop system and I've essentially left the side off the case and replaced it with some window screen mesh to allow for more heat dissipation and to prevent dust from getting in. I still need to pull off the mesh, remove the card, and clean the interior of the case and the fans in the case and on the card about twice a month to remove dust build-up. So, if you recommend no case please also recommend a way to prevent dust from building up and potentially damaging the system.
Here is what I have tentatively put together, I haven't built a rig in more than a decade so I'm really rusty on this. That's why I'm looking for assistance.
LIAN LI Lancool First Knight Series PC-K57W Black SECC / Plastic ATX Mid Tower Computer Case ($50)
http://www.newegg.com/Product/Product.aspx?Item=N82E16811112323
ASUS F1A55-M LX PLUS FM1 AMD A55 (Hudson D2) Micro ATX AMD Motherboard ($65)
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131813&Tpk=ASUS%20F1A55-M%20LX%20PLUS%20FM1%20AMD%20A55
AMD Athlon II X2 250 Regor 3.0GHz Socket AM3 65W Dual-Core Desktop Processor ADX250OCK23GM - OEM ($55)
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103904&Tpk=AMD%20Athlon%20II%20X2%20250%20Regor%203.0GHz%20Socket%20AM3%2065W
Team Elite 2GB 240-Pin DDR3 SDRAM DDR3 1333 (package contains two 1 gb sticks) ($20)
http://www.newegg.com/Product/Product.aspx?Item=N82E16820313102
CORSAIR Builder Series CX600 V2 600W ATX12V v2.3 80 PLUS Certified Active PFC Power Supply ($70)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139028
My intention is to run a linux distribution (probably ubuntu) off of a USB drive for this system so no hard drive is included in the list. Anyhow, let me know if you think this system would work for the 5670 and 6850. Feel free to suggest upgrades in the same price range, or even out of the price range if you can give me a good reason to increase/decrease the cost for that component.
Thank you...
Thralen