I have been using (Win10-64Bit-RV-AM4-Radeon-Software-Adrenalin-Edition-Q2-2018-May17) for my gaming pc/mining rig while still using the beta blockchain driver for 6 gpu dedicated mining rigs.

For dual purpose PCs, the Adrenalin driver is simply brilliant! I crossfire my sapphire nitro+ rx580s 8gb while gaming, go back to compute mode when I am done. However, when it comes to power consumption, these 2 cards are pulling 99w-100w each (msi ab) while mining at 30.4mh/s (Samsung memory) and on the other gaming rig 31.3mh/s (Hynix memory). The hashrate improved after upgrading to Claymore's miner v11.7 which is running on all rigs (gaming/mining).

When it comes to dedicated mining rigs, I think the beta blockchain driver is still the best option. Its very stable, each gpu consumes 85-90w (msi ab) while mining at 30.4mh/s with Clamore's v11.7.

I am downloading 18.3.4 now. Hoping to get better gaming performance with this.

Update: It sucks!

My pc is lagging, 2nd gpu consumes 130w (msi ab) for the first 1-2 hrs, then comes down to 99 (same as the first gpu). 2nd gpu's led flashes after every 5 seconds when idle, its just crap! going back to Q2 which is the most stable one I guess.

Same here. I am running 6 sapphire nitro rx580s on asrock h81 pro btc 2.0 in windows 10. After installing the hub and 7th gpu, system recognized the 7th gpu, but after starting the batch file, the miner shows 0 mh/s for either the 7th or 6th card. (Using the beta mining driver)

Any suggestions please?

Hi guys,

I had question regarding the 7th gpu installation. all 6 of my rigs are powered by 1300G2 running 6 sapphire nitro+ rx580 8gb, each. I have been searching for a way to insert 7th gpu in the setup for quiet some time since i am single mining and have a lot of spare capacity. From the wall, each rig is consuming 880-890W.
 
after reading a lot, i have ordered (StarTech.com 6in LP4 to 8 Pin PCI Express Video Card Power Cable Adapter - lp4 to PCI express - molex to 8 pin PCIe)
 
I also ordered (ROKOO PCI-e Express 1X to 3 Port 1X Switch Multiplier HUB Riser Card +USB Cable) as my motherboard is out of pcie slots. This switch needs to be powered by sata/molex connecton.
 
3 sata cables from the psu are powering 2 risers each and the 4th will be powering the 7th gpu's riser and ssd. To power the 7th gpu, I am planning to connect one end of the molex to 8pin adopter on psu-perf 1 molex cable and other end on psu-perf2 molex cable. The switch will also be powered by either perf1/perf2 molex cable.
 
Is my planning alright?
 
Thanks in advance.

I have four 6 card rigs, all Sapphire Nitro+ 8gb (Samsung memory). After BIOS mod, I am getting 29.2 - 29.8 MH/s with all cards. Clock settings are as follows:

Core clock - 1130
Mem clock - 2200
Core voltage - (-125)
GPUZ - (96W-97W)
From the wall - (880W per rig)

Everything seems to be running smoothly with no rejected shares (so far), but while mining in ethermine.org, a lot of concern arises which are not included in discussions. I wanted to post a screenshot here, but couldn't find the option.

Reported hashrate - 714 MH/s
Current effective hashrate (ranges from) - 584 MH/s - 758 MH/s
Average effective hashrate - 674MH/s

Valid shares - (505 - 652)
Stale shares - (37 - 72)
Invalid shares - 0

My concerns are although my mods and clock settings are working fine, with no rejected shares,

* Why is my average effective hashrate 40 MH/s lower than than reported hashrate?
* Why am I getting 8-10% stale shares?

I have tried nano pool, I was getting lower no. of valid shares per hour (about 120-135/rig) whereas at ethermine, its about (140-160/rig) and stale shares (9-15/rig).