I'll do another fun one.
3992-8x5970(http://www.superbiiz.com/detail.php?name=AT-5970GB&title=Sapphire-Radeon-HD5970-2GB-DDR5-2DVI-Mini-DisplayPort-PCI-Express-Video-Card)
175-mobo(http://www.newegg.com/Product/Product.aspx?Item=N82E16813130274)
104-4xextender with molex(https://cablesaurus.com/index.php?main_page=product_info&cPath=1&products_id=11)
48-4xextender(https://cablesaurus.com/index.php?main_page=product_info&cPath=1&products_id=23)
120-2xpcie splitter(http://cgi.ebay.com/Dell-POWEREDGE-R710-PCIE-RISER-BOARD-MX843-/270692444242?pt=LH_DefaultDomain_0&hash=item3f0686e852)
26-dual psu connector(https://cablesaurus.com/index.php?main_page=product_info&cPath=1&products_id=22)
730-2xpsu(http://www.newegg.com/Product/Product.aspx?Item=N82E16817256054)
30-cpu(http://www.newegg.com/Product/Product.aspx?Item=N82E16819103939)
10-ram(http://www.newegg.com/Product/Product.aspx?Item=N82E16820134657)
10-flash(http://www.newegg.com/Product/Product.aspx?Item=N82E16820313027)
10-2xtarget racks

Total cost:5255
expected megahash:7200

Megahash per dollar:1.37

rofl I wonder if this is actually possible.

Would something like this fix the power problem?
https://cablesaurus.com/index.php?main_page=product_info&cPath=1&products_id=11

I was the first person to post finding the 145 deal on ncixus on this forum. I could have demanded btc for the link or even asked politely for donations but I didn't. It's not hard to find these deals especially after you acquire a list of good websites.

I'm not actually making these. The reason I picked the 8 pcie x16 because its the only board with 8 pcie slots. In order for the 6770 or the 5770 to compete you need to minimize the costs of all the other materials by loading a board up with as many as possible.

I was just trying to be creative so people would think out side the box.

Also if you want to post the set up your talking about with 2.9 ghash and get the megahash to dollar ratio then we might get the ball rolling.

The 68xx's are garbage for mining at the price point they are being sold at. They would need to be around 100-130 to be even considerable. Go with the 5850 sapphire for 176. People have said multiple times that the sapphire can go 408 on stock voltage.

To be perfectly honest I feel the begging from every one on this forum is pathetic. You just said it your self a simple google search can find this so why should any one donate to you?

If they deliver to the US thats only 146 usd which isn't bad 1 dollar more then the other deal that expired.

rofl my bad I always spell it wrong apparently and the spell check on firefox only offers "waist". It doesn't give me both options so I just quickly choose that one. From now on ill watch out for it because I feel like I've done it multiple times.

I guess Ill post another one.

725-5x5850(was 145 a day ago when I bought it)(http://www.ncixus.com/products/60714/11162-15-20G/SAPPHIRE/)
99-6770(http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=602046&CatId=7005)
175-mobo(http://www.newegg.com/Product/Product.aspx?Item=N82E16813130274)
30-cpu(http://www.newegg.com/Product/Product.aspx?Item=N82E16819103939)
10-ram(http://www.newegg.com/Product/Product.aspx?Item=N82E16820134657)
220-psu(http://www.newegg.com/Product/Product.aspx?Item=N82E16817171055)
10-flash(http://www.newegg.com/Product/Product.aspx?Item=N82E16820313027)
72-6*extender(https://cablesaurus.com/index.php?main_page=product_info&cPath=1&products_id=9)
60-case(http://forum.bitcoin.org/index.php?topic=29729.0)

Total cost:1401
expected megahash:2280

Megahash per dollar:1.63

Lets hear optimized builds already

Story?

I'm bored so I figured I would start this thread for a fun way for people to be creative and also enlighten people of possible unknown set ups.

Basically you make a miner that is as efficient as you can in megahash per dollar. You have to link to the item it can be sold out however as long as the price is displayed.

I'll start off with my own crazy build to show you can be super creative.

792-8x6770(http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=602046&CatId=7005)
290-mobo(http://www.newegg.com/Product/Product.aspx?Item=N82E16813130595R)
75-cpu(http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=567308&CatId=7226)
10-ram(http://www.newegg.com/Product/Product.aspx?Item=N82E16820134657)
80-psu(http://www.newegg.com/Product/Product.aspx?Item=N82E16817159101)
6-flash drive(http://www.newegg.com/Product/Product.aspx?Item=N82E16820241103)
99-8*extender(https://cablesaurus.com/index.php?main_page=product_info&cPath=1&products_id=9)

and two of these:

Total cost:1362
expected megahash:1920

Megahash per dollar:1.41

This probably isn't the most efficient you could go but its a hell of a lot better then most ratio's and I was just trying to be creative with something people don't really consider,

I personally think over volting is a waist of money. Not only does it raise the power consumption of your card exponentially you can also easily kill your card if you push it too hard.

Some cards can vary quite a bit for example some 5830's cant get above 300 megahash while the sapphire can get up to 330 easily.

While a 5850 wont have any value to gamers down the road it will still hold its value pretty well with miners because it's one of the best cards you can get.

A 6870 is just a super expensive 5830 and the 6850 is just a complete waist of money.

rofl I clicked the shopping logo to go to their front page this is what it is.
http://abshopping.tk/

Pretty sure he means what this specific brand is capable of doing not what a 5870 in general is capable of doing.

Deal was up until 7-27 they must have changed it back. Still isn't a bad deal but not nearly as great.

To be honest it will probably be a miracle if they aren't sold out by friday. This is the best deal for the 5850 I have seen in 2 months and its a sapphire.

I wouldn't call 2 megahash per dollar the sweetspot. The 5830 @ 130 gives you 2.4 if not 2.5 and the sapphire 5850 has been said to be able to do 400 easily with no over volt that's 2.76 megahash per dollar. The super good deal on the 5870 a week or two ago ($189) can easily give you 2.3. The 5770 can be a good deal but not at 100 if you can get one at 70 or 80 maybe. That's 2.86 but keep in mind all the parts in your server dilute the megahash per dollar value. The only way I think a 5770 build could work is if you could manage to squeeze 8 of them on a mobo but I havent done enough research on that to be positive.