Hey man, can you list down cards with Samsung memory and their memory type code on which you've tested the UberMix straps and get excellent results. I've only had the Asus Dual OC 580 and the ubermix strap is just plain garbage on it. I know i'm not alone as i've seen lots of comments from miners saying UberMix strap is shit anyway.
So let's put names to the cards where UberMix shines as you say.
The cards I have are PowerColor Red Devil RX-580 Golden Sample 8GB, according to the dash-board in HiveOS, these two have Hynix memory.
I've currently got them mining Electroneum (CryptoNight) at the following rate:
XMR - Total Speed: 1675 H/s, Total Shares: 6, Rejected: 0, Time: 00:07
XMR: GPU0 837 H/s, GPU1 838 H/s
This is with a modified bios which has the PBE one-click patch applied and then the bios modded to increase the memory clock to 2250MHz (I couldn't get the software (Claymore v11.0) to increase clocks for some reason it wouldn't apply (cclock/mclock), so had to do it in the bios)
==================== ROCm System Management Interface ====================
================================================================================
GPU DID Temp AvgPwr SCLK MCLK Fan Perf OverDrive ECC
1 67df 52.0c 75.2W 1265Mhz 2250Mhz 40.0% auto 0% N/A
0 67df 55.0c 78.60W 1265Mhz 2250Mhz 40.0% auto 0% N/A
================================================================================
==================== End of ROCm SMI Log ====================
@Mattthev is saying he has better straps so I'm guessing I need one of those straps to improve my hash rate.