Bitcoin Forum

So running AMD blockchain drivers, not all but some units will go from 170 hash on eth to 80 or so and i have to restart miner to get them going back to full.  no errors nothing just a drop in hash till reset.

Windows 10
SSD
Claymore 10

I have seen reports of this happening but never really saw a resolution for it.

I have not updated windows to most current yet but that is what I was going to try this week.  I'm sure the driver is crap but not sure if old windows is causing it.  Thoughts?

I'm running an identical build as you! I've never faced such issues. Do try updating to latest version of Windows, setting core/mem voltage and core/mem clock speeds in claymore bat file itself and not using overclocking utility like Msi AB.

i am getting better hash rate with the normal drivers.

No you are not.  22 = 580 / 24 = 480 unmodded

170-180 modded conservatively.  If you overmod your $ per watt goes up and that's just dumb.

So no one is having this issue?  Today I will load to most current windows and see if it fixes issue.  I doubt it but worth a shot.

How are you getting 170-180 hashrate with 4 GPUs? Are you mining something other than ETH?

First thing you could do is check the log file. It will usually report the last things that happened before the crash.

But regardless of bios mod or not the max those cards will do is 30 MH on ETH. 30 * 4 = 120 MH. And if thats the case, you getting 170++ hashrate may well be the reason your rigs are crashing. Its always good practice to keep tweaking your rigs clock as well as voltage settings until you hit the sweet spot where everything is optimized and stable.

it could be because the card is too hot and either your afterburner or claymore is trying to slow down the hashing to reduce heat.

Would you  mind sharing your bat file with me? Or just the undervolt settings?

Also, have you had any problems when undervolting with claymore?


Thanks

Never said it was 4.  Then again I never said it was 6 either did I.  They are 6 card rigs.

Never had an issue until the blockchain driver.  I should of left them alone ....  Reloading a machine from scratch to complete update, then adding blockchain driver.  See what that does.

I still have the issue on a few rigs and running a standard bios with these drivers did not resolve the issue with the hash rate fluctuation.

Going to do some more linux testing to get something more stable...unless there is a solution for those rigs, the windows rigs are definitely faster than my linux ones.