So I've changed the 0:2000 strap to the 0:1750 value and flashed the BIOS and I am currently getting 25 MH/s on Ethereum but for some reason I cannot seem to go any higher since overclocking my memory past the default 2000 MHz drops my hashrate to around 19 for some odd reason.

I've tried playing around with power targets, undervolting but nothing seems to work!

Is my Hynix memory not overclock-able? What's going on here?