I have two rigs with 12 pcs Asus P106-6GB Samsung Memory.
The only difference he USB Risers.

Both of them are the same OC.
Core 0 Memory 850 PL 84W in HiveOs and i see 283.X MH/s for 12 GPUs.

The problem is the accepted shares.
1st rig has 122 accepted shares and the second rig has 105 accepted shares.

I restarted both of them in the same time but it did not help. The ratio is the same.
What is the problem ? The risers ?

I can get 23.50 Mh/s from one GPU but i see someones get 25 MH/s from a one gpu.
How could achive it ?
i use the latest  HiveOS .