As for me it's useless to increase core for ETH.

I have similar results.  I use core -100, mem +650

Increasing it to around 140-180 will let you lower the power limit. 1080 Ti needs around 1450-1500 core clock in order to maintain 54MH/s+ hashrate. Right now my cards are running at ~165W and ~55MH/s on Linux.

With minus 100-150 for core we can do 56+

PhoenixMiner 3.0c + ETHpill

GTX 1080 MSI Gaming X

Memory +600
Core +100
Power 65
40.3 MH/s  6 GPU 241.9 MH/s Stable 21 Hours Already


https://i.imgur.com/4QQHGjZ.png

W/o pill gtx 1070ti makes like gtx 1080 with pill, which for 1070ti's memory imposible!

980/980ti use GDDR5 also, not GDDR5X.

PROGPOW IS FASTER SANS THE PILL--

I tried it both ways, and the Pill hinders ProgPOW hash rate.  The miner was unstable when running the Pill and mining ProgPOW on 1080 cards/ethOS (linux OS).  My 1080 cards are now mining CryptoNight Heavy with the Pill at about 785H/s, vs 735H/s for my 1070ti cards.  The 1070ti cards are not running the Pill, of course.  Both rigs run ethOS.

Without the Pill, my 1080 cards run CryptoNight Heavy in the mid- 600H/s range.  This is with XMR-Stak, +120 core, +700 memory, ethOS operating system.  The 1080 cards are the most stable on CryptoNight Heavy compared to ETH and ProgPOW both.  The Pill does help with ETH mining, of course, but I did not see fantastic 40MH/s -plus hash rates as some have reported. The 1080s ran in the low-to-mid 30MH/s range, and were unstable, with the Pill.  Clocks for ETH mining were the same as I am now using for CryptoNight Heavy.   Energy use for CryptoNight Heavy is about 50-60% the wattage for ETH.

I have a few ProgPOW coins (BCI, BitCoin Interest) now, sitting in my wallet.  When do I get my interest?  ProgPOW supposedly takes more energy than ETH.       --scryptr

THANK YOU FOR THE REPLY--

I guess I have some reading to do.  Maybe I should invest my CPU-mining revenue in BCI.       --scryptr