Cryptocoin Mining?

[gramboh]

Man I wish I had my trading program done to capture these sweeps....

What are the transaction fees like though? And isn't the market small enough that you might have your BTC on offer for hours/days before it is purchased? Are there market makers?

 

[v8envy]

Transaction fees are under a percent, .3% now at mtgox. Market is liquid enough unless you're talking about tens of thousands worth of coins. Anywhere under $1000 and you'll be able to buy or sell without too much trouble. Bots function as market makers, and spreads for small volumes can be as small as one penny. If you're moving $15k+ worth of coins be prepared for a $1 spread though...

Don't take my word for it, check out bitcoincharts.com.

It's not easy catching these swings though. There's very little depth, still, and one early adopter wanting a Porsche easily trumps technical analysis. (read: knowing general sentiment can be worthless when approx. 1/5 of the long positions can move the price ~30% in a day).

I have SMS alerts set up whenever the price moves more than 5% either direction over 10 minutes and I *still* miss swings. This thing is difficult to trade as a human so I haven't risked automating trading either.

 

[YoungGun21]

What are the transaction fees like though? And isn't the market small enough that you might have your BTC on offer for hours/days before it is purchased? Are there market makers?

Transaction fees are nothing. Market is always up. Market is liquid enough. Market is extremely volatile.

Sounds like perfect conditions...If only I had the dang thing finished.

 

[dpk33]

hi i'm new to bitcoins. where exactly can i use them?

 

[RussianSensation]

My HD6950 + Bitcoin will soon translate into a "free" HD7970! Woohoo, AMD deserves my $$ for the next round. :thumbsup:

 

[dalamchops]

some series mining power's gone up the last 48 hours. Up about 500ghash.

 

[gorobei]

some series mining power's gone up the last 48 hours. Up about 500ghash.

huh?

 

[max347]

I have a question about crossfire:
I just bought a 5830 that only has 1 crossfire connector. I already own a 5850. I was thinking of buying another 5830 but could all three be crossfired?

I was thinking something like this:

5830
|
5850
|
5830

Using the 5850 as the middle card since it has the two connectors.
Would this even work?
I see most 5830 have the 2 connectors, it just appears the one I bought does not.

No, because you will have connectors in these locations:
_
_ _
_

So, you could not use crossfire connectors because they would require the bridges to be:

||_
_||

Also, you can use crossfire bridges to mine, I do, and it is much easier than making dummy plugs. It just allows the cards to be turned on by windows 7. So, you can either have crossfire bridges, or dummy plugs. To me, the crossfire bridges seemed like a more elegant solution.

To the person with 2x5830+5850. Put the 5850 in the top slot (device 0), and hook your monitor to that one. Then, when you want to game, you can just turn off the device 0 miner and be gaming with a 5850.

 

[YoungGun21]

some series mining power's gone up the last 48 hours. Up about 500ghash.

You can't really trust the thing on bitcoincharts.com if that is what you are referring to. It is nice for a general idea, but I would put a +/- 1 Thash/s on it.

It is known that the formula that calculates that number is always in error both right before and right after a difficulty increase, so it could be that effect still.

 

[Zargon]

6950 doing 297 Mhash/s, if anyone wants to know. It should actually do a little more than that as per the wiki statistics.

I get less than that but mostly because I didnt want to hear the fan running as loud as was needed.

I do like 220 keeping at at 45% fan and under 75C

but when I had it cranked at 65% fan it was doing 330

 

[Chiropteran]

Found a server at work running bitcoin mining software. Uh oh. Turns out it was hacked.

 

[Zargon]

yikes

 

[YoungGun21]

Found a server at work running bitcoin mining software. Uh oh. Turns out it was hacked.

Should have just changed its mining login info to your own!

 

[Zargon]

was probably just CPU mining anyways

 

[Chiropteran]

Should have just changed its mining login info to your own!

Hehe, tempting... except as a CPU miner on a VMserver it was only getting a couple MHASH at best. I did record the login information, gonna see if the operator of deepbit can shutdown the account...

The shortcut command line was-
mmc.exe -a 5 -o http://pit.deepbit.net:8332 -u yoshuto.kazumi@gmail.com_9 -p 123456

It had the miner renamed to mmc.exe so it looked like a legit windows process.

 

[RussianSensation]

I get less than that but mostly because I didnt want to hear the fan running as loud as was needed.

I do like 220 keeping at at 45% fan and under 75C

but when I had it cranked at 65% fan it was doing 330

Something is seriously wrong with your setup. 220 Mhash/sec on a 6950? You should be getting at least 300 Mhash with the proper 'flags' in place. Also, if you were running at only 75*C at 45% fan speed, there wouldn't be any GPU throttling either. Not sure why you'd even want 65% fan speed on a 6950. I am running at 45-46% fan speed on a "6970" at 99% load and my temps are 78-80*C in the summer.

 

[YoungGun21]

Hehe, tempting... except as a CPU miner on a VMserver it was only getting a couple MHASH at best. I did record the login information, gonna see if the operator of deepbit can shutdown the account...

The shortcut command line was-
mmc.exe -a 5 -o http://pit.deepbit.net:8332 -u yoshuto.kazumi@gmail.com_9 -p 123456

It had the miner renamed to mmc.exe so it looked like a legit windows process.

That is pretty fancy. I wonder how many computers he has hacked?

 

[Zargon]

Something is seriously wrong with your setup. 220 Mhash/sec on a 6950? You should be getting at least 300 Mhash with the proper 'flags' in place. Also, if you were running at only 75*C at 45% fan speed, there wouldn't be any GPU throttling either. Not sure why you'd even want 65% fan speed on a 6950. I am running at 45-46*C on a "6970" at 99% load and my temps are 78-80*C in the summer.

I am going by what CCC tells me temp wise.

I was getting random lockups every few days without it downclocked and the fan at 60-65% with it in the 80's

so I turned it down

-v -w128 -f90 (-f90 is because I use the machine to webbrowse every once in a while)

its running at like 700mhz and the ram is at 300, power is turned down 20%

I'm open to suggestions

 

[hdfxst]

is this running by itself or crossfired?to run my memory at 300 i had to get rid of -w128 in the flags so it looks like this -v -f30.my 5850 does 350 Mhash at 880 core

 

[Zargon]

by itself

its running 'fine' at the moment with the-w128 tag in it

what fan speed you running?

 

[hdfxst]

when it was xfired along side of the 5830 the core was 850 70-72C and the fan 90%,but i got an extender cable and put together a case out of some scrap wood and an old case and now it's at 60% and stays in the 60's.My power supply is the older one made by seasonic and my cards can overclock more but i worry about overloading the psu

 

[Zargon]

gotcha, yeah I wont run the fan that high, its in a room I use too often

might put one more together to toss in my laundry/utility room, where I can really let the fan spin up

 

[gorobei]

looks like my electricity costs are around $30. so 2 coins of my monthly total go to utilities. Though with this weather, i'm ready to start dialing back the gpu clocks.

 

[Zargon]

looks like my electricity costs are around $30. so 2 coins of my monthly total go to utilities. Though with this weather, i'm ready to start dialing back the gpu clocks.

100+ heat indexes for you too eh?

I got my 6950 doing better, I had undervolted 20%, I raised that to 12% and its doing better, Ill double check the number, but the heat is only up a few C, still under 80, and running at close to stock clock

~285 MHash 75C, 10% undervolted, stock 800mhz clock

-v -w64 -f90(its my HTPC)

 

[Muyoso]

100+ heat indexes for you too eh?

I got my 6950 doing better, I had undervolted 20%, I raised that to 12% and its doing better, Ill double check the number, but the heat is only up a few C, still under 80, and running at close to stock clock

~285 MHash 75C, 10% undervolted, stock 800mhz clock

-v -w64 -f90(its my HTPC)

Jeez. My 5830 is at 325Mhash/s and 59c with a fan speed of 75% on stock voltages.