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Showing 20 of 27 results by slarowe86
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Board Bitcoin Discussion
Re: A question about mining rig (need experienced advice please)
by
slarowe86
on 06/05/2013, 12:41:08 UTC
I have to say please tell me this isn't a serious question???

If so, I apologize

- 850W PS is far from the best on the market (go for at least a 1250+W)
- Running 5 GPU's on 1 PS risks frying your MB/PS/GPU's

So no it is not recommended, 3 GPU's per 1 PS is considered "safe" for the hardware, and seeing how old those cards are now you would be using way more power than say a newer GPU.
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Topic
Board Bitcoin Discussion
Re: Illegal content in the blockchain
by
slarowe86
on 06/05/2013, 12:18:11 UTC
Over the last weeks I managed to use steganographic methods to store custom data in the block chain. The only required information to retrieve the data is the starting block number and information about the algorithm that was used to store the data.

This data contains information that is considered illegal in most Western countries. In fact, most countries are likely to send you to jail, if you knowingly spread this data. Which is exactly what you're doing right now - if you're running a Bitcoin client.

Please consider this as a warning. In exactly one week from now I will inform US police departments about the way how the data can be retrieved from the block chain and how IP addresses of nodes distributing this data can be collected. I can't tell you what to do, but by running a Bitcoin client right now you're in legal jeopardy.

I guess you forgot about the part of how many people now actually use the bitcoin wallet program? Somehow I don't think it's that many. And even still to go ahead and say that there is illegal content that "you" supposedly injected would be like shooting yourself in the foot. Good job troll
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Board Archival
Re: Pictures of your mining rigs!
by
slarowe86
on 01/05/2013, 02:26:48 UTC
Seems dropping it and modifying other settings is dropping the temps and keeping the kH/s near constant.

You don't need high mem clock for mining, I run all my 7970's at 1125-1140 core with 1000 clock fan auto and I never hit above 80C and hashing at 670-700MH per card

He's mining LTC.  Yes, you need a high mem clock for LTC mining.

Oh, oops sorry lol
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Board Archival
Re: Pictures of your mining rigs!
by
slarowe86
on 01/05/2013, 02:25:58 UTC
If I'm not watercooling, should I leave the plastic shroud on the GPU? I have 5 7950s running on a Gigabyte UD-5 Motherboard mining LTC with no shrouds. I believe they're rather adequately spaced, and I have a big 20" Lasko Cyclone fan pointed at them, yet I'm always seeming to get mid 80s to 90C on the cards. I know some of them aren't spaced exactly right and that will be changed soon. A friend of mine is making some custom open-air wood frames for me that will be stackable so I can put 4 rigs together (two beside and two on top of them) and get a big construction sized fan to blow air through them.

Cards are Powercolor AX7950s and are voltage locked (I'll be buying unlocked ones next time as I know of some now). Powertune is set to 20 on them. Getting about 535kH/s per card with standard riser cables (not powered, but some are on the way to see if it will boost the kH/s and let me drop the powertune to -5 or -10).

I would love to get the temps down a bit on these without having to pay for expensive watercooling. Soon I'll be renting a place to build 4 more rigs and put all 6 in and let the rigs pay the electric bill (my apartment doesn't have the juice necessary to feed 6 rigs like this). Then I'll slowly accumulate more rigs. Any suggestions would be welcomed to get these temps lower! Thanks!

-Moose

Pic:

http://i84.photobucket.com/albums/k13/CaptainMooseInc/photo_zps91f2430d.jpg

The reason for the unnecessary men clock is it generates heat, also too you wanna spread out the heat in the room those cases are too close together. You might wanna get another case. I wouldn't suggest no more than 3 that close together. I have 5 of the diamond 7970's, 2 of the HIS 7970's and a 5830 running. Each case only has 2 cards. Because the heat from the bottom card will transfer to the top card causing it to run hotter.

I have noticed that the blade fan that the diamond 7970 uses, while yes it is much much louder, does a way better job of staying cool than the HIS's.

Leave the power settings at default. You should be kickin more MH out than that. Also are you running a extra dedicated power supply for those extra cards? A guy at Microcenter told me you can run 3 cards fine without any power issues. Trying to do more you are risking frying the PS/MB/GPUs. Hope that helps a bit.
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Board Archival
Re: Pictures of your mining rigs!
by
slarowe86
on 01/05/2013, 02:12:50 UTC
Playing more with powertune now and trying to get the temps down. Seems dropping it and modifying other settings is dropping the temps and keeping the kH/s near constant. Time testing it now I guess to see if it's stable.

You don't need high mem clock for mining, I run all my 7970's at 1125-1140 core with 1000 clock fan auto and I never hit above 80C and hashing at 670-700MH per card
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Board Beginners & Help
Re: first setup questions
by
slarowe86
on 17/04/2013, 15:29:13 UTC

It should also be noted that when connecting more than 3 GPUs on a MB, you need "powered" risers, soerboard. that your GPUs grab their BUS power from the PSU instead of from the moth. Otherwise you could end up frying your MB or GPU.

the gpu cards plug into one end of the riser. then other end of riser goes into mobo. then the extra power supply cables connect to the end of the riser attached to the video card? this way the power goes from psu to gpu instead of threw board?



It would be like having a dedicated PS for just the extra GPU, but if you are going with having to get another PS might as well build another system.
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Board Beginners & Help
Re: first setup questions
by
slarowe86
on 13/04/2013, 17:40:28 UTC

Yep, I've seen youtube videos with them, they are similar to IDE cords, you just plug the one end in the PCI slot and the other to the gpu. granted you have to do a little ghetto riging to get all of them going, but that's the process. Altho the guy at the computer store I goto said trying to run 4 GPU's on 1 PS is impossible, 3 max, but that would work for me.

The 7970's only use 1 of the slots, but they are so thick that it blocks the other available port. I could possibly remove the cover off the card but that voids the warranty, and if these burn out then I'm stuck.
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Board Beginners & Help
Re: first setup questions
by
slarowe86
on 13/04/2013, 17:24:34 UTC
sounds cool. nice processor! i used gigabyte board as well. just 3.4ghz cpu. i liked intel chips better though... (not sure why other than it's intel)

both gpu's on one board? havent done 2 gpu's yet. thinking i remember you need dual gpu board to fit two gpu's?  makes me wonder how you hook up 5 gpu's?

was reading some articles i found looking at these: https://www.google.com/search?hl=en&q=extreme+bitcoin+mining&bav=on.2,or.r_qf.&bvm=bv.45175338,d.dmQ&biw=1440&bih=682&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=9pJpUdqiJaLB0gGawYD4Aw

saw this one (i think i have almost the same case)  http://2.bp.blogspot.com/-IEWl9KCMnQ0/TgJTJVdstRI/AAAAAAAAAXc/cGOR1nTYegs/s1600/bitcoin-mining-rig1.jpg

some of these are way cool. and lot of $

This board is designed to hold 4 GPU's, I can only fit 2 on the board due to the double slots the 7970's take up, and then I have another slot available at the very bottom, but the casing of the GPU will run into the cords for the front usb's and the power switch, so I can't have one there unless I find some risers or something
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Board Beginners & Help
Re: Bitcoin Exchanges
by
slarowe86
on 13/04/2013, 17:20:24 UTC
I know, it's supposed to be de-centralized from government hands, but who's to say Mt Gox doesn't have another huge hiccup next week wiping BTC off the face of the earth? (highly unlikely, but you get my point).

People will go to sell at the highest price possible which is what Mt Gox has been doing, so you have camp bx do the same thing, btc-e, etc, the amount of people needed to ddos 4-5 sites compared to 1 main exchange, less chance of panic selling, and a faster growing currency.
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Board Beginners & Help
Re: Noob GPU mining - problem with Slush's pool
by
slarowe86
on 13/04/2013, 17:15:50 UTC
Yeah, each machine has its own worker assigned, all pointed at  stratum.bitcoin.cz:3333

Just confusing that the 30 MH/s working was working fine until 3 days ago...  The two that aren't working probably have the same external IP, as they are part of a massive university network. GUIMiner shows them hashing, just not earning shares. How can it be that they connect to stratum but don't earn?

Unless the university has strict policies, try a different pool
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Board Beginners & Help
Re: Earn Bitcoin automatically
by
slarowe86
on 13/04/2013, 17:14:41 UTC
This post should be removed, what a joke
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Board Beginners & Help
Re: Bitcoin Exchanges
by
slarowe86
on 13/04/2013, 17:13:26 UTC
Multiple exchanges offers the opportunity for arbitrage.

Also creates a scenario that happened earlier this week causing everyone to panic sell. If you look at the EUR/USD on etrade, scottrade, TD Ameritrade, it's all the same price. That's how it should be with BTC imo
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Board Beginners & Help
Re: first setup questions
by
slarowe86
on 13/04/2013, 17:08:25 UTC
thanks, for a noob you have good info thanks!

guiminer it is...

what os you recommend? win7?

Some say there's a difference, I've been using Win7 on all the pc's, one of them are running Win8, but it's a pain when I have to restart the pc remotely, because I have to physically unplug the wireless usb adaptor before I can get it mining again x.x So I'll probably be dropping it down to win 7 this week

nice to know, win7 it is... saw this article: https://bitcointalk.org/index.php?topic=136392.300   seems like butterfly labs asic is a scam Sad
any pics of your setup?

I don't have any pics, I have 2 of the computers where I'm living and then the other two are running at the fiance's mom's.
My main pc/miner:
White phantom 630 case
OCZ 1250W PSU
AMD FX 8350 4 Ghz black edition processor
Gigabyte GA-990FXA-UD3 MB
16 GB RAM
1 TB hard drive
2 Diamond 7970 cards

It's a beast! lol
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Board Beginners & Help
Re: first setup questions
by
slarowe86
on 13/04/2013, 15:57:08 UTC
thanks, for a noob you have good info thanks!

guiminer it is...

what os you recommend? win7?

Some say there's a difference, I've been using Win7 on all the pc's, one of them are running Win8, but it's a pain when I have to restart the pc remotely, because I have to physically unplug the wireless usb adaptor before I can get it mining again x.x So I'll probably be dropping it down to win 7 this week
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Board Beginners & Help
Re: first setup questions
by
slarowe86
on 13/04/2013, 15:45:15 UTC
1 BTC =111.32 USD   so 111.32 for 1 bitcoin. not bad, but thats 1/2 value as when it was $232.00   

what do you see on the pc when you figure out the hash and get bitcoins?


how do you know which site to use? any tips on choosing a site?
are all the programs (miners) the same?
the miner programs come from the sites themselves? not sure how this works...

The program will tell you what the card is hashing and then after a few minutes it will show up on the site that you set the miner up with.

Common mining programs to use are cgminer (personally I like it the best because you can tweak settings)
GUIMiner (fast easy setup)
50btc.com has one you can use, but I've had nothing but problems with it.

You wanna go with sites that aren't super full of users (then you get charged higher transaction fees), but not too little because it's a sign that it's newly established and who's to say they won't close up shop and take what you've mined?

technically I'm still labeled a noob here so I can't post links, and the download site is down, so stick with GUIMiner for now
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Board Beginners & Help
Re: first setup questions
by
slarowe86
on 13/04/2013, 15:26:31 UTC
I use 50btc.com (it's also a pool to mine with)
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Board Beginners & Help
Topic OP
Bitcoin Exchanges
by
slarowe86
on 13/04/2013, 15:24:41 UTC
Anyone else agree that all these bitcoin exchanges should have the same price for ask/sell?

You have campbx which is usually $10-15 lower than Mt Gox

Mt Gox is attracting way too many DDoS attacks, so if all the exchanges kept the same price, we wouldn't see what happened earlier this week cause you could just go to a different exchange.

Thoughts?
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Board Beginners & Help
Re: first setup questions
by
slarowe86
on 13/04/2013, 15:17:51 UTC
I'm currently running 7 cards
the 7970's go for about $450 a pop
You join a pool to get a steady payout

so, like 5k on cards, say another 5k on setup 5 rigs (2 cards each) so 10k investment pays 1 bitcoin per week? and $120.00 per bitcoin(?) means $120. x 52 weeks=$6240 minus electricity? means like i make 5k from like 10k investment (+ electricity?) or im missing something?

thanks for the answers... much appreciated!

Which is why you would have to build an outrageous amount, the price of BTC will fluctuate, it was $266 last week before the crash, will it see it again? who knows, but as the difficulty goes up, your income will drop, so you ave to stay ahead of the curve. It's just like any investment, it takes money to make money. And if in the event that GPU mining becomes no longer viable, well I have PC's I can sell for $2000-2,500 a piece.
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Board Beginners & Help
Re: Where did my coins go?
by
slarowe86
on 13/04/2013, 15:10:31 UTC
Use coinbase, it's easy to buy/sell BTC and transfer funds to a acct.
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Topic
Board Beginners & Help
Re: Noob GPU mining - problem with Slush's pool
by
slarowe86
on 13/04/2013, 15:00:19 UTC
Hey all,

As the title suggests, I'm new to BTC and currently GPU mining until ASICs make it totally worthless.

I've got 3 total miners at 2 different locations working in Slush's pool.  2 of them were working fine as of a couple of days ago, but now only my main one is earning shares.

[1st IP]: ~250 MH/s, earning shares

[2nd IP]: ~30 MH/s, stopped earning shares; ~8 MH/s, never started earning shares.


I really wish I could get the miners at the 2nd site earning shares, as I'm losing out on about 10-15% earnings potential. Any advice welcome.

Happy mining!

So assuming each PC is assigned as a different worker, are all the settings the same? I know slush pool has been having issues recently. Setup a backup pool with 50btc.com or somethin like that (I would suggest BTC Guild, but they have too many users and would be paying a good amount in fee's)