I have 5x RX480 (Saphhire Nitro +) with Blockchain drivers and custom BIOS. I'm limited to 1000W power. I'm currently mining ETH + LBRY but I have some wierd errors. GPU stops every few minutes and then starts again... I tryed lowering dcri but no help.
Now my settings are:
Clock: 1050
Voltage: 950
Memory: 2080
voltage: 950
Can you tell me what settings on GPU do you use for this combination?
I think others have replied to this but just to add my tuppence worth, I think you are sailing to close to the wind with a 1000 Watt PSU and dual mining. It can depend on the PSU you are using, I have a 1000 Watt EVGA Gold (6 card rig) and it worked OK at over 1000 Watts (long story, but put a quick stop to that as it is not recommended). If your rig works OK mining other coins then you are probably over stressing your PSU, remember the rig will take a little extra when it first starts up and if the GPU fans start to run at higher speeds. I found dual mining too stessful for my poor cards.
Get a power monitor and check exactly how much the rig takes from the wall.