Hello,
I just switched my rig to zclassic
I have one card much slower than the others.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fimage.ibb.co%2Fg1kJew%2Fzclassic.png&t=664&c=cA31VCbIXOrVlw)
At the first start, it was GPU 1 who had only 153 H/s
I restarted the rig and now GPU 1 hashrate is ok, but GPU 0 hashrate dropped to the value from GPU 1 before the restart.
What can be the issue ? I see the temp of the first GPU is much lower than the others, but why ?
I never had a problem like this. Whan I am mining on other algorythms like cryptonight or ethash, all cards are mining at same hashrate.
Thank you