bitcoiner49er :  what 7970 are you using?  I've found I can't separate the engine from the memory by more than 150.  Ckolivas talks of the same lock for 7970s where 7950s didn't have it.  You're able to simply tell cgminer (menu keys g, c, e and m) to use engine 1150 and then tell memory to 300?  Just that easy?  My gigabytes will reset the engine and memory if I try to spread them more than 150.  I've tried, and want to, but it wont let me...  I also haven't cracked the voltage unlock yet.

Perhaps you're using a 'reference' card?

Thanks for your help.

Since only a few people have ASICs at the moment..
How soon days..weeks..months?

Thank you all for taking the time to provide feedback - I am going to try a 3 card rig with the hope of not losing too much and will treat it as an hobby, then watch how things develop...

I have a 7950 and 7970 in the same rig and have been doing some reading to try and make them work together under cgminer.

One suggestion was that I run the 7950 and 7970 in two separate cgminer instances.

I've tried using the -d (--devices) argument, but while the first instance of cgminer does start mining on just the device I tell it, I can't get the second one to mine on the second GPU...it starts up but shows 0.00 and eventually goes SICK.

anyone out there doing something like this that can tell me what I'm doing wrong here?

Thanks,
Mike

Thanks for all of the suggestions. Not much I can do about it now unfortunately until I get home in a couple of months, but there's a few things to think about in the meantime. I'm now suffering on day 6 of downtime with my 2.5GH/s machine and there's nothing I can do about it as no-one can go round to reset it until the end of the week!   Making me think about backing down my (very mild) overclocking when it gets going again

I picked up a couple of USB watchdog boards while I was back in the house for a couple of days off from work a few weeks ago, but they didn't come with any software application to run them, only a guide on what instructions to use to interact with the device when coding a program, and I can't code myself so they're still sat in the box at home..

Only thing I can do remotely for now is try the VM suggestion to see if its an OS or hardware lockup, that may help.

Hello all,

I've found the 7790 to have the best power vs hash ratio so far.  250 khash to 65 watts.  Any suggestions to another?

They make hardware for themselves, to try to stay around 30-35 percent of the total network hashing power and then they also sell the blades and USB miners on the side. They then distribute the earnings from those sales along with mining profits to the shareholders. The more hardware they sell, the more the shares will be worth. It's a win-win because when they start controlling too much hashing power they can just start pumping out hardware for resale.

It's amazing that an account under 2FA in Mt.gox can be hacked. This guy found his money withdrawn on May 31, 2013. Someone changed his password and cancelled all 2FA in Security Center. He says he didn't use his mobile phone to get on Mt.gox. How did the hacker get his private key of 2FA??
It's so terrible which means the 2FA maybe not safe.

Link to this post:https://bitcointalk.org/index.php?topic=221098.0

Just curious if anyone has ever experienced this or has known of it happening.  Last night, both of my miners were working along at their stable (expected) hash rates, and then we had a momentary black-out that caused them both to shutdown.  I had them both rebooted in a matter of minutes, and didn't pay much attention to the hash rate of each card, just that they were restarting, and working.  Several hours passed, and when I checked back, all 7 of my cards are now operating at about 4 - 5 MH/s slower than they were before the power outage.  This is spread across 7 different cards, 2 different motherboards, and 2 different PSU's.  The only two common points that I can some up with are the pool that they connect to and the plug in the wall that supply's power.  I would have thought that regulated PSU's would deliver the same DC voltage, regardless of input (within tolerance).  Looking at my Kill-a-watt, it shows a max Vac of 124.5 and a current Vac of 113.8, so I know that there has been some fluctuation on the line at some point.

Hi All
I would really love some help solving a problem I am having with my rig. I just installed my second GPU (Gigabyte 7950). Each GPU will mine fine by itself but when I try to start them both my system immediately crashes. I have been using bitminter because of it's ease of use but trying with guiminer I had the same results. I have never been able to figure out cgminer(?). any help at all would be appreciated.
MOBO: MSI 970a g46
GPU's: Gigabyte WF3 Rev2 X2
AMD Sempron 145
PSU: 850W
I am at a real loss here. Should I try the crossfire cables?
Thank You

So essentially, these are monetary crimes. And since the law enforcement cannot solve the crime or catch the "bad guys" they have to lock down the whole monetary system just in case "bad" money makes it through.

So you are telling me that getting a bitcoin-qt error with the bitcoin-qt client isn't a bitcoin-qt problem?  Or is it just because it has to do with s.r.?  Isn't that allowed?

ASIC's will [probably] be the end of the road, but definitely not the first generation.
They'll just follow some moore law pattern, just like CPU's do.

I think that the hashrate will grow for the next 100 years and it'll still be profitable.
Current ASIC's are like cpu's from 2000. 0.11 micron process of Avalon ASIC's is just like Pentium 3 :-)

oh god i didn't even notice that. fix it, fix it FIX IT!