Bitcoin Forum

How much did it cost you to build your setup and are you happy with the mining results ?

$1700 for each rig.

1 x Intel Celeron G1610 Ivy Bridge 2.6GHz LGA 1155 55W Dual-Core Desktop Processor BX80637G1610
1 x RAIDMAX RX-850AE 850W ATX12V v2.3 / EPS12V SLI Certified CrossFire Ready 80 PLUS GOLD Certified Modular Active PFC Power ...
1 x ASRock Z77 Extreme6 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
1 x Crucial Ballistix Sport 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Desktop Memory Model BLS2KIT4G3D1339DS1S00
4 x GIGABYTE GV-R795WF3-3GD Radeon HD 7950 3GB 384-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card
1 x Western Digital Scorpio Blue WD3200BPVT 320GB 5400 RPM 2.5" SATA 3.0Gb/s Internal Notebook Hard Drive -Bare Drive
1 x EDIMAX EW-7811Un USB 2.0 Wireless nano Adapter
4 x PCI-E Express 16 x Riser Flexible Cable
1 x StarTech PCI Express X1 to X16 Low Profile Slot Extension Adapter Card Model PEX1TO162
1 x Milk Crate
1 x Cardboard
n x zip ties


Very satisfied!  ;D

Ohhh man a milk crate. Why didn't I think of that LOL.

Got pictures? Also, where did you get your riser cables from...I just ordered some from DealExtreme and hoping they turn out okay.

When I get back home I'll take some photos.  There is a thread here on the forum that gave me the idea.  I plan to rack them with additional milk crates as spacers. 
I bought a lot to them from this auction on ebay but he has since ran out.  I'm waiting for a restock.

http://www.ebay.com/sch/microsatacables/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p3686 (http://www.ebay.com/sch/microsatacables/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p3686)

What is your electricity consumption, Mhash/s  and BTC income per day?

The 3 rigs are a little over a week old.  I haven't received my bill yet.  ;D

Based on the current .08 kW rate and the about 700 to 750w per machine (3) running about 23 hours a day I expect it will be about $4-4.25 a day in consumption.

I mine LTC at a rate of 1.8MH/s each machine.  That nets about 4-5 LTC per day.

4-5 LTC per machine or total ?
At the current rate that is only $15 per day, do you expect to make money on this and how ?

must be per machine 'cause that's what I'm getting from my 1.4Mh miner... so 45$/Day for him.

yes per machine.  I hope that my per machine average goes up over time.  I've been doing a lot of tweaking so I have significant downtime.

over the last week my average is 1800kHs each at 700-800w for 4-5 LTC/day,  so 5400kHs total and 2.1-2.4kw for 13-14LTC/day
At the $2.50/LTC it was a total of $35/day or net $30(post electricity bill)

Ideally they should get 2400kHs each at 700-800w for 6 LTC/day,  so 7200kHs total and 2.1-2.4kw for 24LTC/day
At the $3.18/LTC, $60/day or $55/day(post bill)

Its a matter of timing and difficulty level.  It gets hard every week to mine.

You're able to run 4 cards on that board with 850W PSU no problem? Asking because that's exactly what I am looking to do, have 3 now running rock solid, would like to add a fourth.

About the Startech Slot Adapter, curious why you went that route. Wouldn't it have been cheaper/easier to get a 1x - 16x riser?

Milk crate user here as well.  ;D

undervolt.  I got my kill-a-watt meter so I can fine tune it.  before that it was tweaking until they all ran stable.  It was about getting 4 cards in a crate and airflow.  If you are concerned and you have space I would go with a 1000w or 1200w.  Or buy a 1600 so you can upgrade to 6 cards per rig in the future.

The slot adapter was the cheaper at the time and I had a bunch of x16/x16 risers.  I buy parts used (ebay) when I can.

My little rig cost around $850 through Newegg and Ebay, which puts out around 1 GHash/Khash at full overclock in CGMiner. At current Litecoin difficulty I can pull about 3 coins per day.

Gigabyte mobo
Sempron 145
2Gb gSkill RAM
donated hard drive from my collection
3x Sapphire OC 7850 1gb (OCd to 1100/1250 using Trixx)
Silverstone 850w modular PSU

Overall I am satisfied with its output and performance, as 1 Ghash/s was what I was hoping to squeeze out. the kicker is that even as such my machine is no match to others that have been building their GPU/FPGA rigs for some time already. It still can pull in a nice residual, but need more power to keep up with everything going on. So many other coins popping up I would like to be able to harvest several at the same time. This amount of power only gives a meager performance if directed at one pool.

Naturally in about 2 months Bitcoin mining with this thing will be a moot point when the ASICocalypse hits. Which is why my attention is now on Litecoin  :)