Bitcoin Forum
September 07, 2024, 07:49:28 PM *
News: Latest Bitcoin Core release: 27.1 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: [1]
1  Bitcoin / Mining support / "Verification failure, check hardware!" Please help :( on: July 18, 2013, 12:14:07 AM
Hello. I recently installed a new Sapphire 7950 and tried to mine with it. I was running Catalyst 11.1 with a 6950 without issues at 350mh at stock clocks with the shader unlock. 11.1 did not support the 7950, so I installed catalyst 13.4.
This threw up an error in poclbm and wouldn't even start mining. I cleaned drivers via driver sweeper, and installed 13.1.
The card starts to mine under 13.1, and as soon as a share is discovered, it gave me the error "Verification failure, check hardware", after a little research I've determined that the shares it's producing are invalid and the miner closes once discovering it's producing invalid shares.
I worked on this for a couple hours, then I resorted to formatting my SSD boot drive with a fresh win7-64 installation, thinking this would surely eliminate any issues related to mismatched drivers. I asked around for the best catalyst for 7xxx cards, which I've been told is 12.8. I installed 12.8, and have not changed yet, but the miner is still giving me the "Verification failure, check hardware" error. The card itself seems perfectly fine, I've stressed it using game benchmarks and some other openCL stuff and it works totally fine.

I'm baffled by this! Please help!
2  Bitcoin / Pools / Re: [~1200 Gh/s Mining Pool] SSL, API, instant payouts,LP,+1% for NO INVALID BLOCKS on: May 25, 2011, 09:05:57 AM
My account still says unconfirmed email, and have not received an email in the spam folder or otherwise.  How long should I wait to get that before I seek help for it?  Did a search on this forum and didn't come up with anything.
Currently e-mail confirmation is needed only to change your bitcoin address for the second time or recover your password.
E-mail is not sent just because of registration yet Smiley

Also, using D:\Programs\BitCoin Miner\phoenix.exe -u http://*@*.*:*@deepbit.net:8332/ -k poclbm DEVICE=0 AGGRESSION=3 as my command line.  I have an Nvidia 550gtx Ti graphics card, so what aggression setting would you use if you were me?  Seems like my speed isn't as fast as some people have here, but I realize that it's only a $200 card and people here probably have ones that are much more expensive.  Smiley
The problem is that you are using Nvidia's card instead of ATI. Nvidia cards don't have hardware support for bitwise shifts and thus are inferior for hashing.

Ah, I see.  I just got this Nvidia card because I heard that Rift ran better on these.  I went from an Ati Radeon 4650 to an Nvidia 550 gtx ti.  How much of a gain do you think that I would get from using a Radeon card?  Right now it seems like I am getting an average of 35.50 MH/s with you.  I think that it's still within the 30 days and I could return it for something else.

Edit: Crap, I think someone has thrown away the box to the card I just bought.  I do have another system that I'm not running now, so I could use my old card or buy another one in that system.  I could find some way to use the internet on both of my computers (I'll have to probably figure that out myself) and set them up separately.  Could probably just hook one of my monitors up to it long enough to get it going then unplug it and put it back on this one, since I have two monitors.

*Cough* A $150 5770 pulls 200mhash/sec
*Mega-Cough* A $109 5830 pulls 250mhash/sec

edit: by far the best budget card for mining at the moment, price/performance ratio can't be matched. It does however require 2 6-pin connectors whereas the 5770 requires only 1, if I'm not mistaken.
Pages: [1]
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!