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[Official] BitCoin LiteCoin DigitalCoin and all Crypto Currencies Club And General Information Thread - Page 445

post #4441 of 22883
Not fun at all.

Haven't ramped up the 290 yet. I've been having a lot of trouble setting cgminer up for a 290 and 7950.

Doesn't seem like cgminer can handle running 1 GPU with 2 threads, and another with 1 thread. My 7950 is stable only when 2 threads are used. Any time it is running on a single thread, cgminer will cause a OS freeze or crash dump.
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post #4442 of 22883
Hmm, makes me wonder if it's worth flipping my 7950 for a 280x (although it does have one broken fan). I'd have to put a price floor at $300 and would want to get a reference PCB design this time around.
Quote:
Originally Posted by legoman786 View Post

Forgive me, but what is the 51% attack?

For all coin transactions on that coin's given network, the majority of the nodes (basically any computer that mines or has the whole blockchain) have to reach a general consensus on what is the correct blockchain, or list of transactions. Anyone trying to cheat by double spending their coins (effectively like counterfitting coins) would have to overwhelm the network with their own list. Therefore it's known as the 51% attack because you need to control at least that much computing power, more like >50% to be accurate.

On very large networks like Bitcoin this requires an astronomical amount of computer power, so an attack is very improbable there, but very small networks on coins just starting out, it's more susceptible to attack.
post #4443 of 22883
I sense a big BTC pump coming soon...
    
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7950 w/ Alphacool block G.SKILL Trident X 2500mhz 2x4gb SanDisk Extreme 240gb sata III 6gbs x5 SwiftTech Apongee Drive II 
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Monsta 360 86mm thick rad X 4 MCP 35X Pump x2 400ML Frozen Q Fusion res x3 Windows 7 Ultimate 64 bit 
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CatLeap 2560x1440 + Acer hn274h bmiiid 120hz 3D Logitech G19 Corsair Ax1200 watts  Mountain Mods Ascension 
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post #4444 of 22883
Quote:
Originally Posted by TheLAWNOOB View Post

Diamond coin is doomed. All pools down, solo mine is too slow. I'm pretty sure someone pulled a 51% attack.

Also, Fastcoin is doomed as well. The pool I'm mining at right now has 66% of the network hash rate.

According to http://com-http.us/ccdir/dmd/ network hashrate is 3.6MH/s - tiny, so how is solo-mining hard? 

post #4445 of 22883
I remember when u could solo mine BTC...
    
CPUMotherboardGraphicsGraphics
i7 3770k 5.2ghz  GIGABYTE G1 Assassin Sniper 3 7950 with Alphacool block 7950 w/ Alphacool Block 
GraphicsRAMHard DriveCooling
7950 w/ Alphacool block G.SKILL Trident X 2500mhz 2x4gb SanDisk Extreme 240gb sata III 6gbs x5 SwiftTech Apongee Drive II 
CoolingCoolingCoolingOS
Monsta 360 86mm thick rad X 4 MCP 35X Pump x2 400ML Frozen Q Fusion res x3 Windows 7 Ultimate 64 bit 
MonitorKeyboardPowerCase
CatLeap 2560x1440 + Acer hn274h bmiiid 120hz 3D Logitech G19 Corsair Ax1200 watts  Mountain Mods Ascension 
MouseAudio
Logitech M570 Pioneer SP-BS21 Bookshelf Loudspeakers + Lepai Amp 
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CPUMotherboardGraphicsGraphics
i7 3770k 5.2ghz  GIGABYTE G1 Assassin Sniper 3 7950 with Alphacool block 7950 w/ Alphacool Block 
GraphicsRAMHard DriveCooling
7950 w/ Alphacool block G.SKILL Trident X 2500mhz 2x4gb SanDisk Extreme 240gb sata III 6gbs x5 SwiftTech Apongee Drive II 
CoolingCoolingCoolingOS
Monsta 360 86mm thick rad X 4 MCP 35X Pump x2 400ML Frozen Q Fusion res x3 Windows 7 Ultimate 64 bit 
MonitorKeyboardPowerCase
CatLeap 2560x1440 + Acer hn274h bmiiid 120hz 3D Logitech G19 Corsair Ax1200 watts  Mountain Mods Ascension 
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Logitech M570 Pioneer SP-BS21 Bookshelf Loudspeakers + Lepai Amp 
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post #4446 of 22883
Quote:
Originally Posted by Hokies83 View Post

I remember when u could solo mine BTC...
Yeah,when dinosaurs still alive lol.
post #4447 of 22883
Quote:
Originally Posted by GoLDii3 View Post

Yeah,when dinosaurs still alive lol.

Wealthy dinosaurs that is. I heard they use to mine up hill both ways back in that day and age!
post #4448 of 22883
Hey guys, so is mining still worth it vs electricity cost? And what about litecoin vs bitcoin? And what about 7950/7970 vs 290/290X in the hash per watt department?
post #4449 of 22883
Quote:
Originally Posted by Hokies83 View Post

I sense a big BTC pump coming soon...

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post #4450 of 22883
Thread Starter 
Quote:
Originally Posted by ZombieJon View Post

Smelter isn't worth it anymore.

It averages 1 block a day with the current network hash on SRC and QRK. Not even sure if that pays off the electricity, although running Smelter draws 1/4 the power of hashing scrypt.

Even playing the long game on QRK/SRC with Smelter is kinda hard to pull off now.

1 block per day on what kind of hardware? SRC price is pretty darn high.
Quote:
Originally Posted by ZombieJon View Post

Not fun at all.

Haven't ramped up the 290 yet. I've been having a lot of trouble setting cgminer up for a 290 and 7950.

Doesn't seem like cgminer can handle running 1 GPU with 2 threads, and another with 1 thread. My 7950 is stable only when 2 threads are used. Any time it is running on a single thread, cgminer will cause a OS freeze or crash dump.

You need to run dual instances for different amounts of threads...mixed intensities are easy with a conf file but for that you'll need two instances with different batch files.
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