Hey guys!

I have some problems with my rig.

Gigabyte GA-P41-ES3G
Intel Core2Duo E8400 3GHz
3Gb DDR3 Ram
4x ASUS GTX 1050TI 4G with risers
ETH only mining

With Win7 64bit Prof SP1 runs Claymore v11 all cards around 12.3MH/s, if I overclocking them with MSI Afterburner, the hashrate decrease to 10-11MH/s, and the memory clock stays 3500Mhz even I add + or -
With Win10 64bit Prof start Claymore, the memory stays around 400Mhz, the CPU works well perfectly (around 1800Mhz), and the hashrate 1.2-1.3MH/s

I tried with other 3 rigs but with the same results, and older versions of Claymore but no changes.

Anyone met with the same problem?

Thanks!