Cryptocoin Mining?

Page 331 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

KlokWyze

Diamond Member
Sep 7, 2006
4,451
9
81
www.dogsonacid.com
I technically voltage unlocked my Gigabyte 7950 Rev. 2's. I flashed with some modded BIOS's, but can't seem to lower voltages through MSI AB or the GigaByte software. I used the '--gpu-powertune -50' flag on both cards and I'm pulling 100 less watts. Also, it looks like they are pulling less than 1.25v through GPU-Z.

Temps are noticably cooler. GPU 0 was 89C this morning ....... lol

Can't get more than 570kh out of each of them without the temperatures shooting WAY up. It's odd that when I tweak the shit out of GPU1 and purposely lower the clocks on GPU0, GPU0 is still the one that skyrockets in temperature even though GPU1 is getting more shares.

Going to do something I should have done months ago. Read all the cgminer readme's included with the software.

Also, DGC is dead. Not bothering to mine the other pump & dump coins at the moment. I love wemineltc website, alerts, reliability, etc.
 
Feb 19, 2009
10,457
10
76
Also, DGC is dead. Not bothering to mine the other pump & dump coins at the moment. I love wemineltc website, alerts, reliability, etc.

KlowWyze, look up Middlecoin, its a really good alternative to manually hunting down the most profitable alt to mine and sell. You get BTC set to your wallet daily. It works nicely for me now that I CBF day-trading my coins anymore (too busy with work).
 

Torn Mind

Lifer
Nov 25, 2012
12,004
2,749
136
Hmm, these cards might have an "ideal set of settings" in which you get a high hashrate but any slight deviation can totally wreck it. Very interesting

This Powercolor 7970 3GBD5-2HDV3 I bought seems to be hitting 688.7 Khashes/s with the following in cgminer:

./cgminer --scrypt -I 13 --thread-concurrency 8192 -g 2 -w 256

OS is Linux Mint 16 with fglrx. Core clock is 975 and mem clock is 1500.

If I run cgmin with intensity 20, no specified thread concurrency, -g, or -w tag, I get only about 620 Khashes and get massive diminshing returns to scale at about 945 Mhz core clock and 1500 Mhz mem clocks.
 

suklee

Diamond Member
Oct 9, 1999
4,575
10
81
KlowWyze, look up Middlecoin, its a really good alternative to manually hunting down the most profitable alt to mine and sell. You get BTC set to your wallet daily. It works nicely for me now that I CBF day-trading my coins anymore (too busy with work).

Thanks for the tip, just started mining on middlecoin.

Anyone ever have an issue with blank pool names in CGWatcher? Not all are blank.


PS. Ron Paul Coin is now on CoinedUp
https://twitter.com/CoinedUp/statuses/419009878183510016
 

tracerit

Senior member
Nov 20, 2007
457
1
81
so this all seems very interesting and i think i'm gonna jump in. from what i've read it seems you have to go big (spend +$1500 and aim for +2000 kh/s) and in early to get the most out of mining.

over this weekend i'm gonna try to pick up four 280x and the rest of the parts.

which pools are the most reputable and safe ones to join?

is the XFX R9 280X a good card to use? http://www.newegg.com/Product/Produc...82E16814150678

do all the video cards need to be of the same brand and model?
 
Last edited:

KlokWyze

Diamond Member
Sep 7, 2006
4,451
9
81
www.dogsonacid.com
KlowWyze, look up Middlecoin, its a really good alternative to manually hunting down the most profitable alt to mine and sell. You get BTC set to your wallet daily. It works nicely for me now that I CBF day-trading my coins anymore (too busy with work).

I will point my miners @ Middlecoin when I figure out how to get my hashrates up. After reading through most of the documentation last night the developer constantly states that you need the right combination of Catalyst and SDK to get optimal hashrates.

Hmm, these cards might have an "ideal set of settings" in which you get a high hashrate but any slight deviation can totally wreck it. Very interesting

This Powercolor 7970 3GBD5-2HDV3 I bought seems to be hitting 688.7 Khashes/s with the following in cgminer:

./cgminer --scrypt -I 13 --thread-concurrency 8192 -g 2 -w 256

OS is Linux Mint 16 with fglrx. Core clock is 975 and mem clock is 1500.

If I run cgmin with intensity 20, no specified thread concurrency, -g, or -w tag, I get only about 620 Khashes and get massive diminshing returns to scale at about 945 Mhz core clock and 1500 Mhz mem clocks.

what temps are you getting? did you mess with voltage at all?
 

Torn Mind

Lifer
Nov 25, 2012
12,004
2,749
136
Lol, I think Ron Paul might actually approve of the coins for being more in line with his principles.
 

Torn Mind

Lifer
Nov 25, 2012
12,004
2,749
136
what temps are you getting? did you mess with voltage at all?

Temps were set to so the fan keeps it at 75 degrees, now at 73 degrees Celsius. I don't know how to change voltages in Linux(can it even be done?). So, that means no voltage changes for either the cores or memory. Only have one card running in the box right now. I actually want to undervolt, not overvolt to save on whatever power I can
 

IEC

Elite Member
Super Moderator
Jun 10, 2004
14,582
6,011
136
so this all seems very interesting and i think i'm gonna jump in. from what i've read it seems you have to go big (spend +$1500 and aim for +2000 kh/s) and in early to get the most out of mining.

over this weekend i'm gonna try to pick up four 280x and the rest of the parts.

which pools are the most reputable and safe ones to join?

is the XFX R9 280X a good card to use? http://www.newegg.com/Product/Produc...82E16814150678

do all the video cards need to be of the same brand and model?

You're late to the party. Buying what is quite possibly the single worst 280X at $119 over MSRP each is the worst possible way to get started. You will likely never break even buying a bunch of overpriced 280X cards. Because when the bubble bursts, you'll be lucky to get $250 for each card. I say this despite being a crypto advocate in general, because if you think this mania is going to last... I've got a bridge to nowhere to sell.

As for why I say the XFX is quite possibly the single worst card... XFX 7970 DD (which is basically the same as their 280X) was the single worst 7970 for scrypt mining, bringing < 490 kH/s with its stock configuration and overheating. I had a revision I could flash to a different BIOS so I did that and promptly sold the card. Worst. Mining. Card. Ever.
 
Last edited:

Torn Mind

Lifer
Nov 25, 2012
12,004
2,749
136
Also, if I change the clocks to 925 or 950 MHz, I get good hashrates; 672 Khashes/s at 950 with all other settings the same
 

Torn Mind

Lifer
Nov 25, 2012
12,004
2,749
136
so this all seems very interesting and i think i'm gonna jump in. from what i've read it seems you have to go big (spend +$1500 and aim for +2000 kh/s) and in early to get the most out of mining.

over this weekend i'm gonna try to pick up four 280x and the rest of the parts.

which pools are the most reputable and safe ones to join?

is the XFX R9 280X a good card to use? http://www.newegg.com/Product/Produc...82E16814150678

do all the video cards need to be of the same brand and model?

The video cards will be running independently, so they don't have to be the same model. But you're a bit late. XFX's coolers aren't that good though. I would not trust them to hold up with multiple cards adjacent to each other.
 

tracerit

Senior member
Nov 20, 2007
457
1
81
You're late to the party. Buying what is quite possibly the single worst 280X at $119 over MSRP each is the worst possible way to get started. You will likely never break even buying a bunch of overpriced 280X cards. Because when the bubble bursts, you'll be lucky to get $250 for each card. I say this despite being a crypto advocate in general, because if you think this mania is going to last... I've got a bridge to nowhere to sell.

As for why I say the XFX is quite possibly the single worst card... XFX 7970 DD (which is basically the same as their 280X) was the single worst 7970 for scrypt mining, bringing < 490 kH/s with its stock configuration and overheating. I had a revision I could flash to a different BIOS so I did that and promptly sold the card. Worst. Mining. Card. Ever.

thanks for the warning! i just figured i'm still seeing builds with 280X's being posted in December, the price is what it is. It's the "new" MSRP and it doens't seem like it'll be going down anytime soon. Is there another card that's recommended? the R9 290?

i might pick up the XFX 280X for gaming though since it comes with BF4
 

tracerit

Senior member
Nov 20, 2007
457
1
81
ah, so i should just not even get into litecoin mining? i'm not too crazy about making maximum money, i'll settle with making a profit of $400 over 5-6 months just to pay for a nice video card to play BF4 with lol.
 

dfuze

Lifer
Feb 15, 2006
11,953
0
71
ah, so i should just not even get into litecoin mining? i'm not too crazy about making maximum money, i'll settle with making a profit of $400 over 5-6 months just to pay for a nice video card to play BF4 with lol.

I look at it as buying my gaming rig then let it earn money when not gaming. If going purely for investment you may be disappointed, but if you buy what you would get for a gaming PC, any money you make is icing.
 

IEC

Elite Member
Super Moderator
Jun 10, 2004
14,582
6,011
136
ah, so i should just not even get into litecoin mining? i'm not too crazy about making maximum money, i'll settle with making a profit of $400 over 5-6 months just to pay for a nice video card to play BF4 with lol.

IF you can find a high end Radeon (especially 290) at MSRP or lower, then it MAY be worth it to do so.

Problem is, it is very difficult to find higher end Radeons at MSRP or lower in the United States. Unlike much of the rest of the world.
 

taq8ojh

Golden Member
Mar 2, 2013
1,296
1
81
FYI: You do NOT need AMD SDK installed. All the needed components are part of Catalyst since several months ago.
 

tracerit

Senior member
Nov 20, 2007
457
1
81
I look at it as buying my gaming rig then let it earn money when not gaming. If going purely for investment you may be disappointed, but if you buy what you would get for a gaming PC, any money you make is icing.

yeah, i feel the same. i just built a desktop for BF4 but skimped on the video card (went with an r9 270, was hoping Mantle would give it a nice boost). But now I'm feeling I an extra $200 for an r9 280x wouldn't be too bad spread out over a year or two of playing the game.

Maybe I won't build a dedicated build for mining. Just get and run two 280x in crossfire for gaming and when i'm not gaming i'll let them do their mining. According to the calculator (1300kh/s, .09usd/kwh, 3300 difficulty, 800W) it'll pull in estimated $220/month. Then the difficulty increases, so maybe next month it'll only be $200. Am I understanding it that as difficulty increases, the payout is decreased?
 

thilanliyan

Lifer
Jun 21, 2005
12,015
2,235
126
KlowWyze, look up Middlecoin, its a really good alternative to manually hunting down the most profitable alt to mine and sell. You get BTC set to your wallet daily. It works nicely for me now that I CBF day-trading my coins anymore (too busy with work).

Has it worked out well for you?
 

nwo

Platinum Member
Jun 21, 2005
2,308
0
71
As for why I say the XFX is quite possibly the single worst card... XFX 7970 DD (which is basically the same as their 280X) was the single worst 7970 for scrypt mining, bringing < 490 kH/s with its stock configuration and overheating. I had a revision I could flash to a different BIOS so I did that and promptly sold the card. Worst. Mining. Card. Ever.

XFX makes some pretty awful cards, their double D line is especially disappointing. My XFX 7870 Double D is the worst mining card ever. However, my XFX 7850 core is the best (bang for the buck) mining card... Regardless of that, I will definitely stay away from high end XFX cards in the future until they start making legit coolers for their cards.

Hmm, these cards might have an "ideal set of settings" in which you get a high hashrate but any slight deviation can totally wreck it. Very interesting

This Powercolor 7970 3GBD5-2HDV3 I bought seems to be hitting 688.7 Khashes/s with the following in cgminer:

./cgminer --scrypt -I 13 --thread-concurrency 8192 -g 2 -w 256

OS is Linux Mint 16 with fglrx. Core clock is 975 and mem clock is 1500.

If I run cgmin with intensity 20, no specified thread concurrency, -g, or -w tag, I get only about 620 Khashes and get massive diminshing returns to scale at about 945 Mhz core clock and 1500 Mhz mem clocks.

I have the same card as you and I am running the same TC, G, and I. If i add W to my bat file, my cg miner won't load and automatically closes within a few seconds. I am getting 660kH/s max, around 650-655 avg with 0 HW and very low R. But in order to do so I had to bump my VRAM up to 1575 and core is at 975 just like yours.

yeah, i feel the same. i just built a desktop for BF4 but skimped on the video card (went with an r9 270, was hoping Mantle would give it a nice boost). But now I'm feeling I an extra $200 for an r9 280x wouldn't be too bad spread out over a year or two of playing the game.

Maybe I won't build a dedicated build for mining. Just get and run two 280x in crossfire for gaming and when i'm not gaming i'll let them do their mining. According to the calculator (1300kh/s, .09usd/kwh, 3300 difficulty, 800W) it'll pull in estimated $220/month. Then the difficulty increases, so maybe next month it'll only be $200. Am I understanding it that as difficulty increases, the payout is decreased?

I wouldn't recommend purchasing 280Xs at current prices. If you were able to snag one of the open box Asus cards with the 10% masterpass promo, you made one heck of a good move though.

As the difficulty increases, the payout in LTC decreases. So your profits go down, but that's with the assumption that prices stay the same.
 
Last edited:

blastingcap

Diamond Member
Sep 16, 2010
6,654
5
76
Use http://bitcoinwisdom.com/litecoin/calculator

The calculator assumes almost-ideal conditions: litecoin prices remain at their current high price, buying a 7970 or 280X for $310 (good luck with that), paying 10 cents/kWh with a 80+ efficient power supply, and have a 2% pool fee/stales/orphans amount and never play any games so it's mining 24/7, and assuming the rest of your computer eats zero watts (CPU, RAM, mobo, hard drives, optical drives, fans).

If difficulty goes up only ~3.2% per difficulty readjustment (easily possible because AMD keeps making video cards and people keep exchanging their old cards with newer, more powerful cards), a $310 7970 or 280X video card will never pay for itself.

Your numbers may be worse, especially because that 280X you're looking at costs way more than $310 and you may pay more than 10 cents/kWh, and you will likely not be mining 24/7 if you are playing games, and because PC components other than video cards DO consume wattage.

If you were going to buy that 280X card anyway or get free or nearly free electricity, then it's not as bad and you could make a little money on the side. But if cryptocurrency prices drop, you can lose money because you would have paid unnecessarily high electric bills, and because a used 280X will be worth a LOT less when mining with it becomes unprofitable. (In October 2013 before the surge in mining interest, a brand new with warranty 280X cost as low as $180 after rebate.)

Alt-coins can temporarily be more profitable than litecoin, but miners arbitrage that extra profit away pretty fast, and many of those are scamcoins (pump and dump schemes, pre-mined, etc.) and don't pan out anyway. For every dogecoin there are lots of dud coins that end up less profitable to mine that if you had mined litecoin instead.

If you're thinking "but what if litecoin prices rise faster than mining difficulty," then you may well be better off buying it directly in the first place; historically it's been more than 10x more profitable to buy and hold coins directly than to mine them assuming ~10 cents/kWh electricity.

Note that difficulty responds to prices, not the other way around, because the already-mined volume of coins is so much bigger than the daily trickle of mined coins so that demand (people buying coins) drives price, not supply (mining). For instance, every day 3600 bitcoins are produced but 11 billion have already been mined, so the supply is basically fixed. Litecoin has a similar situation.
 
Last edited:

KlokWyze

Diamond Member
Sep 7, 2006
4,451
9
81
www.dogsonacid.com
I'm done with this mindkissing. These cards will not go over ~560 without massively overheating. I've tried countless configurations of cgminer, catalyst drivers, cgminer settings, blah blah fucking blah. I'll try LinuxMint next. I'm SURE IT WILL BE A BLAST.

Silverforce. Middlecoin is looking very unimpressive right now. I rarely get accepts and am constantly getting "Stratum from pool 0 detected new block". As usual, as others have mentioned, these fringe alt coin services are simply unreliable, annoying to deal with and simply give you shit returns because of all the problems.

As others have said, it's just a headache to deal with this stuff. People just want to point their miners at a reliable pool and be done with it. I have a full time job, girlfriend, etc.


Excessive profanities removed - Admin DrPizza
 
Last edited by a moderator:

thilanliyan

Lifer
Jun 21, 2005
12,015
2,235
126
Silverforce. Middlecoin is looking very unimpressive right now. I rarely get accepts and am constantly getting "Stratum from pool 0 detected new block". As usual, as others have mentioned, these fringe alt coin services are simply unreliable, annoying to deal with and simply give you shit returns because of all the problems.

Yes I've read that middlecoin has a lot of rejects. Pointed couple of miners at it. I'll see how it goes for 24 hrs.

Also, what clocks and thread concurrency are you running for 570kh/s? I have my 7950s at 630kh/s right now. 1140/1500, 1.1v, 24000 TC. I'm pretty sure those Gigabyte 7950s are voltage locked. IIRC, Gigabyte's later cards were volt locked.
 
Last edited:
sale-70-410-exam    | Exam-200-125-pdf    | we-sale-70-410-exam    | hot-sale-70-410-exam    | Latest-exam-700-603-Dumps    | Dumps-98-363-exams-date    | Certs-200-125-date    | Dumps-300-075-exams-date    | hot-sale-book-C8010-726-book    | Hot-Sale-200-310-Exam    | Exam-Description-200-310-dumps?    | hot-sale-book-200-125-book    | Latest-Updated-300-209-Exam    | Dumps-210-260-exams-date    | Download-200-125-Exam-PDF    | Exam-Description-300-101-dumps    | Certs-300-101-date    | Hot-Sale-300-075-Exam    | Latest-exam-200-125-Dumps    | Exam-Description-200-125-dumps    | Latest-Updated-300-075-Exam    | hot-sale-book-210-260-book    | Dumps-200-901-exams-date    | Certs-200-901-date    | Latest-exam-1Z0-062-Dumps    | Hot-Sale-1Z0-062-Exam    | Certs-CSSLP-date    | 100%-Pass-70-383-Exams    | Latest-JN0-360-real-exam-questions    | 100%-Pass-4A0-100-Real-Exam-Questions    | Dumps-300-135-exams-date    | Passed-200-105-Tech-Exams    | Latest-Updated-200-310-Exam    | Download-300-070-Exam-PDF    | Hot-Sale-JN0-360-Exam    | 100%-Pass-JN0-360-Exams    | 100%-Pass-JN0-360-Real-Exam-Questions    | Dumps-JN0-360-exams-date    | Exam-Description-1Z0-876-dumps    | Latest-exam-1Z0-876-Dumps    | Dumps-HPE0-Y53-exams-date    | 2017-Latest-HPE0-Y53-Exam    | 100%-Pass-HPE0-Y53-Real-Exam-Questions    | Pass-4A0-100-Exam    | Latest-4A0-100-Questions    | Dumps-98-365-exams-date    | 2017-Latest-98-365-Exam    | 100%-Pass-VCS-254-Exams    | 2017-Latest-VCS-273-Exam    | Dumps-200-355-exams-date    | 2017-Latest-300-320-Exam    | Pass-300-101-Exam    | 100%-Pass-300-115-Exams    |
http://www.portvapes.co.uk/    | http://www.portvapes.co.uk/    |