It is ok to be ignorant. What is not is insulting someone based on your ignorance.

Sell bitcoins = go short, when you OWN the damn coins. TradeFortress would "borrow" those coins from inputs.io. Can you grasp the subtle difference that makes you an ass for bashing the OP?

No offense, but the day that people started the ASICs arms race and killed GPUs for bitcoin mining, they fell from the top of their high horse. Yes, some alts are shitcoins, but you actually lost reason to complain when you pre-ordered your BFL or KnC.

Now, we agree that most alt-coins will not survive and people holding them for months, will become empty handed. However mining them and trading for BTC up to a week after being mined, is what was left for small/casual miners.

Further, people complain about wasting power with GPUs. Do you have an idea how much water, power, chemicals, capital, human work, etc... is wasted on making chips and bitcoin mining rigs that are not useful for anything else?

Oh, hold on, I'm not sure I understood ... Please post a screenshot of your cgminer window.

If you see ~3 Mh/s and it shows multiple lines with "Accepted ...", it's a tad low but still acceptable value for scrypt on your setup. Scrypt hashes tend to be ~1/1000 of SHA2 for the same cards.

Here's part of my cgminer.conf:

"intensity" : "20,17",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "7680,16384",  <- Use 16384 or see below
"shaders" : "1536,1536", <- Should be 1792 for you
"gpu-engine" : "800-900,700-790",
"gpu-fan" : "0-85,0-85",
"gpu-memclock" : "1500,1500",
"gpu-memdiff" : "0,0",
"gpu-powertune" : "0,0",
"gpu-vddc" : "1,0.9",
"temp-cutoff" : "78,78",
"temp-overheat" : "73,73",
"temp-target" : "68,68",
"api-listen" : true,
"api-port" : "4028",
"auto-fan" : true,
"expiry" : "120",
"gpu-dyninterval" : "10",
"gpu-platform" : "0",
"gpu-threads" : "1",
"scrypt" : true,
"temp-hysteresis" : "3",
"kernel-path" : "/usr/local/bin",
"api-allow" : "W:127.0.0.1,W:192.168.2.101"
}

If it crashes/doesn't load/locks, etc..., better download pre-compiled .bin files, which btw are faster than default. Download from https://forum.litecoin.net/index.php?topic=6058.0 , unpack to the cgminer folder and choose the proper thread-concurrency value

Maybe not. I toasted a 600W crap PSU with just a single graphics card. A Corsair 650W handles 2 cards without issues.

If the PSU can handle it, depends on the REAL(not claimed) Amperes provided by the 12V rail. You probably need up to 25A per card, not sure

In alternative or in addition you should undervolt the cards. You probably will need to hexedit and reflash the bios.

hehe... Welcome, and good hashing!

Make sure that the line that reads intensity has "13,13,13...." or "20,20,20..." or something in between. Whatever maximizes your hash rate without giving hardware errors.

You can further improve by figuring out a good ratio between the core and mem clocks. It's usually between 60 and 70%

Portugal

Ok, explain me one thing: did people that trusted TradeFortress with this ripple experiment, end up losing REAL BTC? Yes or no?

Estou interessado em saber condições para graficas ATI, FPGA ou ASIC.

Até 300€ por equipamento. Para entrega em mão em Lisboa e pagamento a dinheiro.

Indique marca, modelo, preço, consumo, hashrate

Propostas razoaveis, por favor   Obrigado.

You only need one single mouse, keyboard and monitor for all of them. You don't even need an hard-disk, an usb pen drive with Linux or CraPE (somewhere in this forum) will do. When set up, use a vnc server or remote desktop to login to the machines without needing to connect mouse/kb/monitor

Consider these ATI cards:
7950: 175€ - 200€,   650 Kh/s
6950(used): ~110€, 450 Kh/s
5850(used): ~60€, 400 Kh/s
7990: 520€ , 1200 Kh/s (bad €/Kh ratio, but higher density)

Offtopic: are you from Lisbon ?

Perhaps you could trade on this same forum, using escrow.

Oh lord! Understanding each other can be hard on writing and when people come from multiple backgrounds and are non-native English speakers.

I ask you: where am I assuming that you are begging? Sorry if this misunderstanding hurt your feelings. NOWHERE I was assuming that you were begging.

And to over1977v: where did you read that the OP was begging for BTC?

Nevermind...

The primecoin boat has left too. Just because a coin has no competition from GPUs does not mean it is easy to get or is worth something.

Yes, with a CPU, you should mine at a pool that accepts the scrypt algorithm. From here: http://sourceforge.net/projects/cpuminer/, cpuminer supports scrypt (since it mentions litecoin).

You can mine whatever scrypt coin you like, trade it for bitcoins (e.g. at cryptsy.com) or not, or just point your miner to a pool that does the latter automatically. For a list of coins, look at coinchoose.com

As a starting point, register at https://hashco.ws or http://www.multipool.us. Leave the miner running for 2 or 3 days. Then evaluate if it is worthwhile the power usage, noise, heat, equipment degradation and hassle.

Hi there.

Exchange your Nvidia GTX 650 for a good ATI. ATI videocards give you 5x-10x the rate of Nvidia for the same price point. Until then, use cudaminer software. See here: https://litecoin.info/Mining_hardware_comparison

Dedicated mining hardware is always risky, with pre-orders, scams, delays, negative ROI and so on. At least, videocards have other purposes.

Hi there.

If I understand what you are asking, it is "scrypt", which is incompatible with all the others (phatk, poclbm, etc...). However it is the one that should be used for CPUs or videocards.

Select a mining pool that mines such scrypt coins, like one mining Litecoin, Feathercoin, Worldcoin or a pool like hashco.ws or multipool.us

22 erupters ~= 6.7 Gh/s

Click the icon of the console window (top left), select "properties" and make sure it has more than 25 vertical lines. If it's not properties, it's the other option. Then restart bfgminer

Hi there!

Please post the configuration file

Where is he begging for BTC?