Re: Conclusion Sapphire RX580 with Hynix are not that bad.

Hello there, I just bought 6 Sapphire nitro+ with Hynix memory and I can confirm they only get 22 mh/s no matter what I did...
I gotta say i'm pretty disappointed with this performance...
I wanna ask you about your bios mod, have you been running it for the past month without problem ?
thanks

This one (Version 2) is working fine for me:
http://1stminingrig.com/best-bios-rom-sapphire-nitro-rx-580-8gb-oc-hynix-memory-30-mhs/

Hey thanks man, so I managed to bios flash my rx 580s all six of them, I was very happy when they started hashing at 27MH after bios mod and 2000mhz memory clock, then even happier when i overclocked with MSI afterburner to get 30.1mh on 2250mhz memory and 1150mhz core clock.
Then the strangest thing happened, I have all cards on same settings yet only one gpu is always displaying this error on claymore v9.6

Code:

GPU#0 got incorrect share. If you see this warning often, make sure you did not overclock it too much!

I tried replacing the gpu pcie slot, putting it on default clock speed (1411mhz/2000mhz) and even reflashing it but still same issue...
I'm using combined amd driver from cryptomined channel on win10.

any ideas what's going on ?
thanks ^^

Download HWinfo, run sensors only and see if there are any memory errors. I've never seen a Bios modded RX 580 that can you can overclock the memory to 2250 MHz and not produce tons of memory errors.

Thanks, I came back to answer my own question, after some digging turns out the PCIe risers i'm using are shit, after switching the PCIe bios settings to GEN2.0 (they were GEN 3.0) the problems are gone and all cards are hashing normally.. Although, I've set the clock to 2150 to make sure I avoid any other issues later on.