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Topic: Help with new Mining Rig (Read 858 times)

newbie
Activity: 14
Merit: 0
April 25, 2013, 05:29:00 PM
#21
I would say go used. That is going to be the best route. Also drop the case and get a crate and a box fan.
newbie
Activity: 19
Merit: 7
April 25, 2013, 05:14:10 PM
#20
Your main enemy here is going to be when you put those 7970 beside each other. I would almost say you would need a water block at least on the middle card or else you're going to have them start throttling due to heat. I have two of them in one case and side by side the top card would max out at 97 and the bottom at 92 once I put a space between them they both I was getting 88 and 86 for temps. This was without over clocking.

I like this calculator http://www.bitcoinx.com/profit/

as it is pretty accurate even though it was not designed to give profit for a pps pool. Just put in the cost of your mining hardware and your hash rate.
newbie
Activity: 42
Merit: 0
April 25, 2013, 05:04:36 PM
#19
To start, Here is the new rig that I would like to make.
http://i37.tinypic.com/2dcd4kp.jpg

I'd like to turn a profit mining BTC because honestly it's the only coin I know much about and I've already started a bit with my current computer.

I picked X why (new parts)?

Mobo - 3 PCIe slots for expansion, all x16
Case - Cheaper, fits better
PSU - Will be able to hold all three cards
GPU - Can turn a profit and will buy 2 more once the rig breaks even

I also picked this GPU because it's a powerhouse and I read in multiple threads that it was a great miner with stock clock getting around 600MHashes/s and overclocking to around 800.

Things I need help with
At the current low price from mtgox, BTC are $120. What is the projected date to break even with one card running 700MHashes/s? (Does not include the cost of electricity)

What is a rough estimate of this rig making in profit per week?

Is this rig worth investing in?

Whats the best and safest way to exchange BTC to USD?

If not BTC then what's a coin that will turn a decent profit (hopefully +15-20$ more than profit per week)?

Thanks again for all your help.



http://www.alloscomp.com/bitcoin/calculator

http://dustcoin.com/mining
newbie
Activity: 7
Merit: 0
April 25, 2013, 04:57:22 PM
#18
To start, Here is the new rig that I would like to make.
http://i37.tinypic.com/2dcd4kp.jpg

I'd like to turn a profit mining BTC because honestly it's the only coin I know much about and I've already started a bit with my current computer.

I picked X why (new parts)?

Mobo - 3 PCIe slots for expansion, all x16
Case - Cheaper, fits better
PSU - Will be able to hold all three cards
GPU - Can turn a profit and will buy 2 more once the rig breaks even

I also picked this GPU because it's a powerhouse and I read in multiple threads that it was a great miner with stock clock getting around 600MHashes/s and overclocking to around 800.

Things I need help with
At the current low price from mtgox, BTC are $120. What is the projected date to break even with one card running 700MHashes/s? (Does not include the cost of electricity)

What is a rough estimate of this rig making in profit per week?

Is this rig worth investing in?

Whats the best and safest way to exchange BTC to USD?

If not BTC then what's a coin that will turn a decent profit (hopefully +15-20$ more than profit per week)?

Thanks again for all your help.

full member
Activity: 182
Merit: 100
April 25, 2013, 01:31:27 PM
#17
What are you mining? It won't be worth it to use it for BTC now with ASICS comming
newbie
Activity: 12
Merit: 0
April 25, 2013, 12:28:52 PM
#16
I wouldn't agree with your choice of a Radeon 6670 as your GPU. Not a very good card for mining at all. I tried one out and got 100mhash from it only.
newbie
Activity: 28
Merit: 0
April 25, 2013, 11:46:25 AM
#15
how cheap are 5830s going for these days?  Anybody purchase one in the last few weeks?  I feel like the recent attention to bitcoin mining have skyrocketed the published prices (eg. $65-105 for a used card on the main BTC wiki.)

Not really sure but I know that the reason 58XX series of cards are more expensive is just because they are hard to come by. Amazon has 5830s at $200 and more (some over $300). I feel like I got pretty sweet deals on my 5870s because Amazon has those for over $400.

This Mining hardware wiki prices the 5830 at ~$100.

https://en.bitcoin.it/wiki/Mining_hardware_comparison
newbie
Activity: 28
Merit: 0
April 25, 2013, 11:39:03 AM
#14
Thanks guys for all the help. I found a new set up that I'd like some feedback on. I'd like to keep it under $1000 so I know the 1 btc a week goal is out of question. I'll post the potential rig when I get home today around 6pm est if you guys are still interested. Thanks for all the help so far.

Can't wait to see it! I'm in the Eastern US also. Ohio Valley area. Where are you?
newbie
Activity: 42
Merit: 0
April 25, 2013, 11:38:55 AM
#13
how cheap are 5830s going for these days?  Anybody purchase one in the last few weeks?  I feel like the recent attention to bitcoin mining have skyrocketed the published prices (eg. $65-105 for a used card on the main BTC wiki.)
newbie
Activity: 7
Merit: 0
April 25, 2013, 11:31:59 AM
#12
Thanks guys for all the help. I found a new set up that I'd like some feedback on. I'd like to keep it under $1000 so I know the 1 btc a week goal is out of question. I'll post the potential rig when I get home today around 6pm est if you guys are still interested. Thanks for all the help so far.
newbie
Activity: 42
Merit: 0
April 24, 2013, 08:01:08 PM
#11
If the CPU is the brain, the GPU is the muscle, the case is the skin, then the PSU is the blood. Don't skimp on the power supply. Get a lower power PSU from a better manufacturer. It can make all the difference, believe me.

Also get 80+ gold certified at least. That'll insure you have a good efficiency and aren't wasting watts at the wall.

Edit: and whether you have one or multiple rails shouldn't matter if it's a quality PSU
newbie
Activity: 5
Merit: 0
April 24, 2013, 07:29:46 PM
#10
If the CPU is the brain, the GPU is the muscle, the case is the skin, then the PSU is the blood. Don't skimp on the power supply. Get a lower power PSU from a better manufacturer. It can make all the difference, believe me.
hero member
Activity: 728
Merit: 503
dApps Development Automation Platform
April 24, 2013, 07:26:59 PM
#9
Your going to need a lot more hashing power for 1btc a week as has already been mentioned. BUT.. If you go after TRC and convert it to BTC in my experience you make out better
newbie
Activity: 28
Merit: 0
April 24, 2013, 07:24:05 PM
#8
I would definitely bump up that video card and certainly see if you can fine two cards... Craigslist is full of gamers selling off old video cards to get the latest and greatest. They have no idea what they have. I found a 5870 for $99 and traded for another. With those two I'm getting ~700mhash on an 850w PSU. I could get about 100mhash faster if I overclock the cards, but I plan to use the cards for other things once my ASIC arrives Smiley
newbie
Activity: 42
Merit: 0
April 24, 2013, 07:15:03 PM
#7
If your goal is to make 1BTC a week minimum, that would require 2500+ mH/s.  With that set up, you will make .06-.08BTC per week.  But you have room to add more video cards.  Consider an ASIC Miner maybe?

ASICs are expensive and he said he's trying to go cheap. If you want to wait for a while I know of one DIY ASIC project. It's in the planning stages still but it seems to be coming along nicely. I don't have the link at the moment but I'll post it later. Low cost you probably won't get an asic outside of that. There's also 28nm FPGAs coming. I've only seen one but they quoted a 200-300 price range if I remember properly. But that might be a few months off as well.
newbie
Activity: 14
Merit: 0
April 24, 2013, 06:06:50 PM
#6
If your goal is to make 1BTC a week minimum, that would require 2500+ mH/s.  With that set up, you will make .06-.08BTC per week.  But you have room to add more video cards.  Consider an ASIC Miner maybe?
newbie
Activity: 42
Merit: 0
April 24, 2013, 06:04:38 PM
#5

Hey guys, After doing some research I found this guy on walmart.
http://www.walmart.com/ip/21152488?wmlspartner=wlpa&adid=22222222227000000000&wl0=&wl1=g&wl2=&wl3=21486607510&wl4=&wl5=pla&veh=sem#Product+Reviews
Any thoughts? Better than the current one I have selected?

If you're going to go lower end might I recommend the 6870. On newegg it's cheaper and will probably be about 2x faster than a 7770. (I have one right now, well 2 but I'm waiting for connectors. It's pumping out 414khash/s. Yes I'm mining litecoin and yes most sites say about 350. Don't expect too much more than that I just got lucky I figured out a good arrangement.)

Edit: Forgot the link to the card I got. http://www.newegg.com/Product/Product.aspx?Item=N82E16814202032&IsVirtualParent=1
hero member
Activity: 672
Merit: 501
April 24, 2013, 05:59:13 PM
#4
spend a few more bucks and get something better for a PSU. Wattage is not as big of a factor as it does for supplying a nice steady current to your Video card. If that thing fuluxuates and stuff you could end up frying your whole rig. Spend the extra money and get a SS-850KM3 Active PFC F3...or something along those lines.... nice solid stream without the worries of beating it to heck and back and then have it fail on you.
newbie
Activity: 7
Merit: 0
April 24, 2013, 05:37:15 PM
#3
shameless self bumb
newbie
Activity: 28
Merit: 0
April 23, 2013, 03:44:31 PM
#2
If you're going for a 900 watt PSU it would make sense to consider 2 Graphics cards for mining. That would make your machine more cost efficient.

As for the hardware, maybe others might be best to assist. Best of luck!
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