So I got my Sapphire Nitro+ RX 570 8GB (Micron) in yesterday and after watching this video (http://curvetube.com/BIOS_Mod_Sapphire_Pulse_RX570_8G_MICRON_for_Ethereum_AMD_Radeon_GPU_Mining/HYh3H3-OOHA.video)
I was able to change the straps to 1750. I know he's using the PULSE, but from what I can tell the PULSE is the same card but with only a single 8-pin and lower core clock. He's getting higher hashrate from the simple changing of the straps. He's getting 29MH/s while I'm only getting 27MH/s even at the same memory clock of 2175MHz, I can't get to 28MH/s.
That's funny because all my other RX4xx/5xx cards are 4GB and none can go over 2000MHz without memory errors yet they can all do 27MH/s with 1750 straps. I also tried using Anorak's Samsung Micron memshift 1500 but crashed the system when I OC'd to 2000MHz memory, never seeing 27MH/s. https://anorak.tech/t/sapphire-rx-570-nitro/5332
I'd like to think at 2175MHz this card could get 29MH/s. Any help would be appreciated.