Quote from: EvilHamster on February 28, 2018, 07:57:35 PM

Quote from: Hodlmyhand on February 28, 2018, 07:43:24 PM

Quote from: EvilHamster on February 28, 2018, 07:30:10 PM

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

DUDE !!!

Thank you so much.

Uninstalled and reinstalled Crimson driver - device manager instantly sees 4 cards.

I know I can clock the bios and stuff, but Im new and this cost me a lot of money (I know its not alot to others) so for the time being I'll keep it all stock.

Also - the cards now run;

570 - 22.933
570 - 22.445
550 - 10.174
550 - 10.183

Loving this.

Thank you again

Ken

Hey again mate, good stuff.

Ok well open the AMD settings thing and overclock the cards at least. for the rx 570s, go core clock 1150 and mem clock 2000. and make sure they are on compute mode. Do that at least