Post
Topic
Board Mining (Altcoins)
Re: AMD Rebrand - RX570 / RX580 - Official Thread
by
Mattthev
on 28/05/2017, 10:22:42 UTC
Hi Guys,

I've just bought 6 RX580 from Sapphire (nitro+ 8gb) and I discovered that the memory is HYNIX.
I've played around for some days to achieve a good hasrate but unfortunately the maximum I've got is 25.2 / 25.5.
I've seen a lot of video on youtube, read tons of threrad here but when I flash bios and change some value on GPU clock or Memory I can't get more.

I read for the HYNIX memory the value to change on timings is the 2:1750 to 2:2000 and actually it's the only way to get more (instead of changing 1:1750 to 1:2000).
My problem is when I try to change memory clock (standard 2000mhz) every mhz up will be result on worst hashrate.
A good compromise is underclok the GPU (1066 or 1033 mhz) and undervolt it (-100mv) while the memory is always 2000mhz and I got 25mh/s on 95w.

Any suggestions?



Thanks in advance

Try 1625Mhz or even 1500MHz, but it couldn't work at all, try it on 1 card and only for 2000MHz. You could try some performance optimized timings, but they are hard to find. Best is UberMix but this one is only for Samsung.