Hi again.
Firstly thank you to everyone for helping me get off the ground with my rig.
I now have 4 cards:
2 x 570 4gb and 2 x 550 4gb.
Running the 2 x 570s I get around 20(ish) on each card. So I sold a few things and got a 550 4gb - plugged that in on a riser and restarted Claymore..Found 3 x gpus..Great.
The 2 x 570's now run at a reduced 15mhs and the single 550 4gb runs at 8mhs. Which is not as good as the 2 x 570's..
Stranger still is if I add another 550 4gb it will only ever see 3 cards ? I have interchanged the risers and cables and they all check out.
Has anyone got any ideas about the reduced speed and 4 th card ?
Many thanks for any help.
Ken
Forgot to say Windows 10 - 64bit Gigabyte z170 board
Hello mate,
Try uninstalling and reinstalling the AMD drivers when you change the number of cards on your board. That fixed it for me.
Everytime you boot up, check device manager to ensure the system can see the cards. If the cards do not appear in device manager then I suspect a riser issue.
Youll need to mod the bios and overclock to get 30MH/s on the rx 570s
Look up polaris one click bios editor