I recently replaced a 6950 card with a 7950 card. The 11.1 drivers I was using on the 6950 were not compatible with the 7950, so I deleted the 11.1 driver, manually deleted the associated files in system32 and syswow64 folders, and installed 13.4(latest) drivers. It appears to start mining but as soon as a share is discovered it throws up an error "verification failed, check hardware", I've been told that there's an opencl issue between the software/hardware that causes the shares to be invalid. I've tried installing multiple different driver sets, like 13.1 as people had good results with that, but that gave me a huge error.

any advice...?

I recently installed a new video card, from a Gigabyte 6950 to a Sapphire 7950. Without any software modification, poclbm would just hang indefinately. I was using 11.1 Catalyst drivers so I decided to install the latest 13.4 drivers and latest poclbm. It looked promising, and would start mining, but as soon as a share was discovered an error came up, "Verification Failure, check hardware!". I googled this error and supposedly different drivers were yet again in order. I found some 13.1 drivers which supposedly work well with 79xx cards. I ran poclbm again, and got this error:


Exception in thread Thread-2:
Traceback (most recent call last):
  File "threading.pyo", line 525, in __bootstrap_inner
  File "threading.pyo", line 477, in run
  File "BitcoinMiner.pyo", line 401, in miningThread
  File "BitcoinMiner.pyo", line 516, in loadKernal
  File "psyopencl\__init__.pyo", line 141, in program_build
RuntimeError:  clBuildProgram failed: build program failure

Build on <pyopencl.Device 'Tahiti
              ' at 0x495de58>:

Internal error: Input OpenCL binary is not for the target!

This is quite frustrating! Any suggestions from the pros here?...


edit:  still working at it.. going back to 13.4 drivers is giving me the "Verification Failure, check hardware!" error just like before... I'm at a complete loss here...

I was interested in this until the 2nd picture revealed that it's an automatic.

One of my cards is a Gigabyte model 6950 2GB with the shader unlock.
It's been mining for just over 2 years 24/7 at around 65-70C. Mildly overclocked 50mhz on gpu core, memory clock is untouched, since I use the card to do other things also.
It'll play WoW and mine at the same time, cuts mining speed in half but WoW is very playable still, with an average of 40fps.

if hes going to regret anything, it will be the maintenance costs on a lambo. the NSX is technically a supercar, it's incredibly reliable, and can be easily modified to 800+ HP if you spend the equivalent of what it would cost you to take a lambo in for repairs.

Lambos are indeed difficult to keep maintained. Get a Honda NSX.(acura in USA)
Supercar feeling with Honda reliability built in.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139028

this will work fine. it is 600w, bronze certified, and single rail. with the promo code and rebate included, it is only $37.99. corsair being a reputable company is a plus.

I'm retiring a Radeon HD 6950 2GB gpu; this card has a flashed BIOS that unlocks additional shaders. I've been running it nearly 2 years now. Any interest in acquiring it?

You should head over to mmoclub.com, they buy/sell game currency for BTC. Other than finding somebody here who's actually on that server, he's probably your best bet.

I've downloaded CGMiner and tried it, it produces the same results... shows that the card is working but won't submit shares. All she does is check e-mail and do light browsing, but yeah dynamic intensity mode is nice.

Firewall/Router are good to go, she pays less for electricity than I do so 4/5 of my rigs are here at her place and they all submit just fine. Been 2 days now, running at 115mh/sish with no shares... boggles the mind.

bump for great justice

So I've recently added a card to my array.  I've upgraded my grandma's old AM2 box w/ 400w PSU by sticking an XFX Radeon HD 6670 "Turks" card in it. Not like I'm expecting to get many coins from it, but her video card was failing and given her PSU, I opted for a cheap low-power card with no PCI-E 6pin connector requirement.

It has been mining at ~115MH/s for 50btc pool for over 3 hours now, and it hasn't submitted a single share at difficulty 1. At first I was using poclbm to mine with it and noticed that the window would automatically close itself after a minute or so. Boggled by this, I decided to just download guiminer. GUIminer reports the same speed, ~115mh/s, and isn't closing itself, however 3 hours later it has yet to submit a single share. I know this can't be possible, 3 hours even at the low speed of ~115mh/s is bound to submit some shares... approximately 150-200 shares by my estimation.

Any thoughts? The machine in question just got a fresh install of Win7-x64, CCC reports card activity at 94% with a -f150 aggression flag in guiminer. By all logic it should be submitting shares... it connects to the pool fine, it maintains its speed, it shows activity, the card heats up normally as if under load like it should be... Why won't it submit shares...?

That would be bad policy on their part. I was shopping at microcenter, saw a Logitech MX-1000 performance wireless mouse with a $39.99 pricetag, rang up at the register as being $99.99, they sold it to me at the $39.99 price because it was their mistake.

I received a full refund, and to me, Tom is still a scammer. Why?:

1)  It took over 3 months for me to get my refund since the date it was requested. So it's like I gave him a 0% interest loan for months. Not to mention BTC value went up about 2000% and if not for purchasing bASIC preorders I would've sat on the coins instead, but BTC could've also tanked, so this is a null issue but still pisses me off.

2)  Can-Electric. His involvement with that schema reeks of fishyness.

3)  The horribly photoshopped 3D rendering of his alleged units. Those looked horrible, and were an insult to anybody who funded his little venture into nothingness.

Main issue/Conclusion? The refunds took way too long to be issued considering, from what it appears, he didn't even come close to having a working product at endgame. One has to question how much of the funds actually went into development of the product considering the best he offered us was shitty looking 3D render that a poo-flinging gorilla could've done in under an hour.

I'm down 220ish BTC because of all this. If I'd gotten my refund when I requested it($28/BTC) instead of when I actually got it ($137/BTC), it'd be another issue entirely. I've never bought or sold coins. I've spent them, but never bought or sold. If not for my faith in this jackass who calls himself a christian, I could've bought myself a new car. I hope he burns in the hell he so devoutly believes in.

I wouldn't be surprised if Mt Gox engineered the crash themselves.

Pre-Ordering bASIC's. Lost nearly $100,000.

Tom owes me $2759 from 2 orders made in October, no refund yet again so far today.

working now, thanks

btcguild.gigaforge.com:8332  Problems communicating with Bitcoin RPC

been this way for about 19 hours now after all of my miners successfully completed millions of shares using the same .bat file. no changes were made, just broke all of a sudden

I can access the website but my miners have been unable to connect since last night.