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
FINALLY!
For people who are looking for a stable BIOS I found it here:
http://1stminingrig.com/best-bios-rom-sapphire-nitro-rx-580-8gb-oc-hynix-memory-30-mhs/GREAT Bios, from my 1st test I got 30mh/s STABLE both version (1 & 2).
http://imgur.com/a/o6xYhThanks to everyone for help.
Cheers