Verification failed, check hardware!

bandyleg

newbie

Activity: 15

Merit: 0

Hello, Firstly I would like to thank deepceleron for his efforts and inputs!!

This fix may not be perfect but it certainly works!!

Secondly it only works if you follow the instruction correctly, Roll Eyes

I had the same issue on my HD7970 (cayman) it worked a treat so again thank you.

For any one else just trying out mining that is struggling to get gui miner to work then give this a go. If you cant find the 11.11 driver then try softpedia as I couldn't seem to find it on amd's site.

If you are going to try and squeeze every inch of life out of your GPU then do so with caution and do not use the the CCC over drive infact just disable it and use another OC program.

This should see you running smoothly.

CybeRoky

newbie

Activity: 66

Merit: 0

Quote from: kwoody on July 21, 2013, 01:53:15 AM

I've been having this same problem. I switched from a 6950 to a 7950 and got all kinds of errors trying to use 11.1. I updated to 13.4. Errors. Used driver sweeper, tried 12.8 and 13.1, neither worked. Then I resorted to formatting my boot drive and installing fresh 13.1 drivers. "Verification failed, check hardware" as soon as it tries to produce a share. Card works fine for everything else, done other openCL stuff with it, threw some game benchmarks at it, everything seems fine... i am sadface Sad

I have the same problem with 13.9 :/
but work fine with 13.1 wird..

I have 5770 card

kwoody

sr. member

Activity: 454

Merit: 250

Technology and Women. Amazing.

I've been having this same problem. I switched from a 6950 to a 7950 and got all kinds of errors trying to use 11.1. I updated to 13.4. Errors. Used driver sweeper, tried 12.8 and 13.1, neither worked. Then I resorted to formatting my boot drive and installing fresh 13.1 drivers. "Verification failed, check hardware" as soon as it tries to produce a share. Card works fine for everything else, done other openCL stuff with it, threw some game benchmarks at it, everything seems fine... i am sadface Sad

nonstopdncer

newbie

Activity: 1

Merit: 0

Just tried this fix & it has worked a treat! Thank you so much.

pgbit

sr. member

Activity: 771

Merit: 258

Trident Protocol | Simple «buy-hold-earn» system!

Yes, went through this all too, and the above recipe works well. In essence, you need to remove the later graphics card drivers and re-install an older version of catalyst. I could not find a work around with the newer drivers installed searching elsewhere etc. (i.e googling). It might be worth trying the next version of catalyst perhaps, when it emerges, to see if that fixes this issue. Suspect it wont, but anyone please post here if they find it does!

crochetg

newbie

Activity: 8

Merit: 0

Thats a quick solution too!

joeperry

sr. member

Activity: 2282

Merit: 470

Telegram: @jperryC

I had the same issue, and after 2 afternoon installin and unstilling using ccleaner, driver cleaner, following step by step the solutions posted in forums, I gave up and made a new partition and start from 0, and now everrything is OK, I could make a format, but I was reluctant because I have pics and the bitcoin wallet.

I tried to install, catalyst 11.11 that crash my 6950, 12.1, 12.3, 12.4, 12.8 and 12.11 and the same problem.

When the Pc is mining I use a partition, and if my wife needs something we use the other

crochetg

newbie

Activity: 8

Merit: 0

Interesting I fixed my problem by installing version 12.10

However now my HD 6870's are at 190MH/s per card when they were in the 240MH's with the 13.4 driver :\

crochetg

newbie

Activity: 8

Merit: 0

Quote from: deepceleron on April 16, 2013, 04:27:13 AM

This is your GPU returning invalid hashes from it's kernel. This is because new drivers are crap for older cards.

- Uninstall AMD APP SDK

- Uninstall AMD Catalyst Install manager: choose "uninstall all software", make sure you have only a VGA driver after restart.

- Manually remove these files not removed by the installer; any other obvious ATI files with the same file date:
  C:\Windows\System32\amdocl64.dll
  C:\Windows\System32\amdoclcl64.dll
  C:\Windows\System32\OpenCL.dll
  C:\Windows\SysWOW64\amdocl.dll
  C:\Windows\SysWOW64\amdoclcl.dll
  C:\Windows\SysWOW64\OpenCL.dll

- Install just the Catalyst 11.11 driver package (no SDK is needed; the AMD APP runtime is included with driver)

- Mine just a bit slower on your 6870 than a 5830 would.

Better:
- use cgminer
- set phatk worksize to 256 and underclock GPU RAM to 300MHz for best power efficiency and higher hashrate

As i had the exact same problem as the first poster I followed this guide exactly with good faith it would be a cure..

Unfortunately, after restart from 11.11 install I get a blue screen of death that will never go away Sad

any ideas on what I can do? Sad

** startup repair worked and rolled back my old video drivers as well. Interestingly I tried one more time and now the blue screen is triggered during the instillation of the 11.11 drivers. (Before it was only after restart) might this shine some light on whats going on?

christov84

newbie

Activity: 16

Merit: 0

Hey guys,

I made a batch file that makes removing these files a breeze. you might want to check it out and edit it as you see fit.

https://docs.google.com/file/d/0B516ro1M1SX-TW9UR0NZMkZkcnc/edit?usp=sharing

Also If you get OpenCL errors or crashes on startup and have to re-install openCL. use the CleanOpenCL

https://docs.google.com/file/d/0B516ro1M1SX-WmdxMWE3TFRXTlU/edit?usp=sharing

Cheers

Chris

jered6323

newbie

Activity: 2

Merit: 0

I tried CGminer, but it always crashed on when trying to set it up.

deepceleron

legendary

Activity: 1512

Merit: 1036

Yes, if you want a new driver to work, you can ask (with BTC) a miner kernel developer to rewrite the kernel you have chosen in guiminer to support whatever the newest driver and SDK has done to break OpenCL applications. This will benefit few, as dedicated miners already run the appropriate driver to give them not only working but the fastest hashing, and don't use guiminer.

jered6323

newbie

Activity: 2

Merit: 0

Is there any way to get this working without downgrading so far? My card (6950) gave me problems back with the 11.xx drivers for whatever reason. I had things working up until the 13.4 update the other day, now I'm getting this error as well. I'd just hate to downgrade back to having problems just to get mining again.

dellnull

newbie

Activity: 30

Merit: 0

Quote from: deepceleron on April 16, 2013, 04:27:13 AM

This is your GPU returning invalid hashes from it's kernel. This is because new drivers are crap for older cards.

- Uninstall AMD APP SDK

- Uninstall AMD Catalyst Install manager: choose "uninstall all software", make sure you have only a VGA driver after restart.

- Manually remove these files not removed by the installer; any other obvious ATI files with the same file date:
C:\Windows\System32\amdocl64.dll
C:\Windows\System32\amdoclcl64.dll
C:\Windows\System32\OpenCL.dll
C:\Windows\SysWOW64\amdocl.dll
C:\Windows\SysWOW64\amdoclcl.dll
C:\Windows\SysWOW64\OpenCL.dll

- Install just the Catalyst 11.11 driver package (no SDK is needed; the AMD APP runtime is included with driver)

- Mine just a bit slower on your 6870 than a 5830 would.

Better:
- use cgminer
- set phatk worksize to 256 and underclock GPU RAM to 300MHz for best power efficiency and higher hashrate

Thank you so much!! I just reverted from my two "new" 6870 to my 5770 but it didn't work until I tried your magic recipe. I'll try with my 6870 tomorrow, might work as well.

lemonys

newbie

Activity: 57

Merit: 0

I have the same problem with a rig with a 7970 and a 5850 (with 13.x ADM drivers & guiminer). The 5850 miner give the 'verification failed' error.

If I revert to the 11.11 drivers, will the 7970 still be visible (since the 7970 came out after the 11.11 drivers)?

thanks in advance.

jeffjeffjeff

newbie

Activity: 1

Merit: 0

Quote from: deepceleron on April 16, 2013, 04:27:13 AM

This is your GPU returning invalid hashes from it's kernel. This is because new drivers are crap for older cards.

- Uninstall AMD APP SDK

- Uninstall AMD Catalyst Install manager: choose "uninstall all software", make sure you have only a VGA driver after restart.

- Manually remove these files not removed by the installer; any other obvious ATI files with the same file date:
C:\Windows\System32\amdocl64.dll
C:\Windows\System32\amdoclcl64.dll
C:\Windows\System32\OpenCL.dll
C:\Windows\SysWOW64\amdocl.dll
C:\Windows\SysWOW64\amdoclcl.dll
C:\Windows\SysWOW64\OpenCL.dll

- Install just the Catalyst 11.11 driver package (no SDK is needed; the AMD APP runtime is included with driver)

- Mine just a bit slower on your 6870 than a 5830 would.

Better:
- use cgminer
- set phatk worksize to 256 and underclock GPU RAM to 300MHz for best power efficiency and higher hashrate

Amazing... had exactly the same issue with my new HD6950.. followed this and 11.11 drivers work a treat! Thank you so much, good advice! Just need to get another one now...

XDementeiX

newbie

Activity: 4

Merit: 0

Yes xilin, 11.11 works great.

And I have no idea headygains, may have more help in another thread.
Mining doesn't work all that well with nvidia anyway.

headygains

newbie

Activity: 32

Merit: 0

I can't seem to get cgminer to use my gpu it crashes my driver every time
I'm running an nvidia quadro 600

xilin

newbie

Activity: 51

Merit: 0

I have the same problem... Can 11.11 works well on win8 64bit?

Quote from: deepceleron on April 16, 2013, 04:27:13 AM

This is your GPU returning invalid hashes from it's kernel. This is because new drivers are crap for older cards.

- Uninstall AMD APP SDK

- Uninstall AMD Catalyst Install manager: choose "uninstall all software", make sure you have only a VGA driver after restart.

- Manually remove these files not removed by the installer; any other obvious ATI files with the same file date:
C:\Windows\System32\amdocl64.dll
C:\Windows\System32\amdoclcl64.dll
C:\Windows\System32\OpenCL.dll
C:\Windows\SysWOW64\amdocl.dll
C:\Windows\SysWOW64\amdoclcl.dll
C:\Windows\SysWOW64\OpenCL.dll

- Install just the Catalyst 11.11 driver package (no SDK is needed; the AMD APP runtime is included with driver)

- Mine just a bit slower on your 6870 than a 5830 would.

Better:
- use cgminer
- set phatk worksize to 256 and underclock GPU RAM to 300MHz for best power efficiency and higher hashrate

XDementeiX

newbie

Activity: 4

Merit: 0

I used this guide to set to 300Mhz.

As for the workload I don't see difference between 128 and 256, even by leaving out the workload command it's the same.

Topic: Verification failed, check hardware! (Read 27751 times)