Bitcoin mining

Addicted said:
Which pool is that on?
Click to expand...

Tried quite a few but currently give-me-ltc, good return on PPLNS and stratum servers, currently under 1.5% stale/invalid at present.

I'm running 2 HIS 7950 IceQ Turbo's, but I have flashed the BIOS's with the none boost edition so I had control over the voltage. I then lowered core voltage to .950 which is what it idles at, managed to keep the core clock at 925, and overclocked the memory slightly to 1350 but reduced the mvddc to 1.5.

Especially with Litecoins it's about maximizing efficiency and finding the sweet spot for khash/s, my settings are:-

Thread concurrency: 21712
Vectors: 1
GPU threads: 1
Worksize: 256
Intensity: 18 (any above this and it fails, due to running a low vcore)

GPU1 is good for 510khash/s, GPU2 is good for 520khash/s.

I could and have pushed them to 600 khash/s but the power consumption would have been an extra £1 a day, and severely increased stress on components.
This way, everything stays nice and cool and I maximize component longevity and power savings, it's also my gaming rig so I don't want to fry it! :)
I could have also used my FX-8350 as that's good for 70khash/s but again power consumption makes it uneconomical.

If Mt.Gox support Litecoins soon as the speculation indicates, prices will soar IMO.

HTH,
Chris.
 
Last edited:
Im sure gaming machines are no good for Litecoins, xfire 7970 XFX @1125 -1575 getting 1279 khash/s.
Just wondering how long it would take to melt the whole rig with temps of mid 80`s 24/7, that was on (low usage) as well.

Hash_zpsccc111c0.png


Well i just wondered now i know.
 
Last edited:
Nerusy said:
So if **** hits the fan then there's going to be huge demand for currency that is not a legal tender anywhere in the world and relies solely on goodwill of few places to accept it?

My view is that the exact opposite will happen if **** hits the fan, bitcoin will crash.
Click to expand...

zuludawn said:
Im sure gaming machines are no good for Litecoins, xfire 7970 XFX @1125 -1575 getting 1279 khash/s.
Just wondering how long it would take to melt the whole rig with temps of mid 80`s 24/7, that was on (low usage) as well.

Hash_zpsccc111c0.png


Well i just wondered now i know.
Click to expand...

Undervolt it, and don't run overclocked settings. Depends on your cooling solution, see my post above. Decent khash/s there though, if you were mining for Litecoins :D
 
Chrisoldinho said:
Tried quite a few but currently give-me-ltc, good return on PPLNS and stratum servers, currently under 1.5% stale/invalid at present.

I'm running 2 HIS 7950 IceQ Turbo's, but I have flashed the BIOS's with the none boost edition so I had control over the voltage. I then lowered core voltage to .950 which is what it idles at, managed to keep the core clock at 925, and overclocked the memory slightly to 1350 but reduced the mvddc to 1.5.

Especially with Litecoins it's about maximizing efficiency and finding the sweet spot for khash/s, my settings are:-

Thread concurrency: 21712
Vectors: 1
GPU threads: 1
Worksize: 256
Intensity: 18 (any above this and it fails, due to running a low vcore)

GPU1 is good for 510khash/s, GPU2 is good for 520khash/s.

I could and have pushed them to 600 khash/s but the power consumption would have been an extra £1 a day, and severely increased stress on components.
This way, everything stays nice and cool and I maximize component longevity and power savings, it's also my gaming rig so I don't want to fry it! :)
I could have also used my FX-8350 as that's good for 70khash/s but again power consumption makes it uneconomical.

If Mt.Gox support Litecoins soon as the speculation indicates, prices will soar IMO.

HTH,
Chris.
Click to expand...

What sort of return do you get at 1Gh/s out of interest then?

And why not mine BTC instead of LTC, I assume you're hoping LTC will soar in price?


Also I tried give-me-ltc.com earlier - I always get rejected shares?
 
Last edited:
Currently at $166 and rising...

For the price of one of the asic machines (£200ish) you'd be in profit inside a month (with the miner attached to a lower power box you'd leave on anyway eg the HP microserver acting as a NAS).

Have a friend bought the 4.5 G/hash machine from butterfly labs, joined a pool and already at .5 bitcoins after 2 days (so $40 a day) but seems to have slowed down at the moment.

Edit: currently trading at $170, I'm watching https://www.tradehill.com/?r=TH-R111904 which isn't one of the main exchanges but at least gives an idea of the prices.
 
Last edited:
Nexus said:
That's what I was trying to understand about this Bitcoin thing.

I can't ever see shops or normal businesses having Bitcoin as a form of transaction. I do see though that as others have pointed out, that Bitcoin is popular for unscrupulous transactions for the lack of accountability.

Surely though, anyone who is buying coins to buy whatever kind of material they do, there is only ever going to be so much they are willing to pay to buy coins to then purchase what they require. So its going to reach a stage where these coins are worth more than people want to buy them for.
Click to expand...

The price is also so incredibly volatile that you would need almost real time price changes to ensure that you make a profit and don't get screwed over by a sudden price drop. Equally, any shops that do accept them will simply be taking the money straight to an exchange to get money they can actually use to pay for their stock in the first place.
 
Silent UK said:
I seem to be getting a connection error when trying to start after doing the above?
Click to expand...

xibinim said:
Ditto.
Click to expand...

These are my settings for give-me-ltc

GUIScript.png


I use the stratum server for less stale/invalids, select your card from the GPU drop down menu. The password is your worker password at the give-me-ltc site, "my account - myworkers" .. set it there

EDIT .. well that server has just stopped working for me :D there's a notice on the front page about them having problems with it.
Alternatively use, host: http://pool.give-me-ltc.com, port: 8080, use stratum: no

.... Stratum back working again.
 
Last edited:
Mercutio said:
Currently at $166 and rising...

For the price of one of the asic machines (£200ish) you'd be in profit inside a month (with the miner attached to a lower power box you'd leave on anyway eg the HP microserver acting as a NAS).

Have a friend bought the 4.5 G/hash machine from butterfly labs, joined a pool and already at .5 bitcoins after 2 days (so $40 a day) but seems to have slowed down at the moment.

Edit: currently trading at $170, I'm watching https://www.tradehill.com/?r=TH-R111904 which isn't one of the main exchanges but at least gives an idea of the prices.
Click to expand...

That won't work though, because if/when the ASIC machines are released, everyone will have them, making it no easier than it was before to get BTC.
 
If you're mining coins and have spent less than £500 on GPU hardware then to be honest I wouldn't consider the possibility of the bubble bursting to be all that worrisome. Especially if you can recoup your £500 investment before that bubble bursts. People blow £500 on far sillier things that that, ones that have no chance of ever making them any money. The bubble burst risk is more relevant to those who are actually buying BitCoin, er, coins. Rather than mining them.
 
NathanE said:
If you're mining coins and have spent less than £500 on GPU hardware then to be honest I wouldn't consider the possibility of the bubble bursting to be all that worrisome. Especially if you can recoup your £500 investment before that bubble bursts. People blow £500 on far sillier things that that, ones that have no chance of ever making them any money. The bubble burst risk is more relevant to those who are actually buying BitCoin, er, coins. Rather than mining them.
Click to expand...

Couldn't agree more, plus there's the resell value of you hardware. I have for years spent money on hardware for various DC Projects (see my sig) and used a lot of electricity for no reward whatsoever, this is a no-brainer for me.
 
hanluc said:
Couldn't agree more, plus there's the resell value of you hardware. I have for years spent money on hardware for various DC Projects (see my sig) and used a lot of electricity for no reward whatsoever, this is a no-brainer for me.
Click to expand...

There is the electricity angle to it, of course. But it seems to me the potential rewards far exceeded that deduction quite some time ago. From what I can see the potential rewards from BitCoin make more financial sense than, for example, betting on a horse race or football match.

It's basically a case of taking a punt on something. And if it turns out bad then it's more a case of "ahh shucks, nevermind" than "fuuuuuuuu I literally cannot afford to eat now".
 
NathanE said:
There is the electricity angle to it, of course. But it seems to me the potential rewards far exceeded that deduction quite some time ago. From what I can see the potential rewards from BitCoin make more financial sense than, for example, betting on a horse race or football match.

It's basically a case of taking a punt on something. And if it turns out bad then it's more a case of "ahh shucks, nevermind" than "fuuuuuuuu I literally cannot afford to eat now".
Click to expand...

Exactly, hence why I'm looking for another 79*0 card :P
 
If your GPU isn't on the GUIMiner list - game over? I have a 4870 1GB which apparently can do around 90Mhash/s

Though I guess my 4870 is roughly comparable to a 5770 which is on this list.
 
You must log in or register to reply here.
Back
Top Bottom