Dear hulk999, thank you for your input. I can confirm the Gigabyte RX Vega 64 Gaming OC is problematic for Ethereum mining in particular. The memory configuration (mine is also Samsung), seems to refuse overclocking or higher performance straps. The best I could achieve was 990mhz on the memory using stock straps. In other words just over 38 mega hashes, like you. Yes, I have upgraded my bios from version F1 to F2.

Thank you for referring to team red miner and their vega timing options. I now for the first time am achieving 2200 hash mining Monero. Although I would prefer to mine Ethereum at 50 mega hashes!

So, if anyone in this thread has any clue why some of us with Gigabyte Gaming OC Vega's have trouble with Ethereum tuning please respond. Good day to all.