Probably the PSU is to blame for that. I’m not sure what exact power figures we’re talking about on RX 480 but it could very well be 6 x 150w = 900w plus CPU and the rest, more than PSU maximum capacity.
Try 5x cards and check the power at the wall with a kill-a-watt or similar device. Try lowering the clocks with MSI afterburner and check how the power consumption decreases. And add the last GPU when you are sure you won’t exceed the power rating.
Rigs like yours are reported to be drawing around 800 watts after tweaking. So 1000 should be enough, but you have to do the tweaking. Check anorak’s thread for modded bios, search other threads here for clock and mem settings and undervolt settings.
i used to have the same prob even using 2X750 W psu and an ASROCK H81 PRO BTC
try to change the GPU i mean keep only 5 GPU but change one of them then look if it crashes again
if no you better change the GPU from the supplier
Too soon to tell. I don’t get as much time with my baby as I’d like. I’m going to try out some of the suggestions above tonight if I get time. It does look suspiciously like a dodgy card, I’ll swap it for one that I know is working and see what happens.
Been running for an hour with Claymore v8 with no problems. Although I’m getting the same H/s with 6 cards as I did with 5 cards using Claymore v9.3…!! Ah well, the joys of mining.
Just a short follow up. Using the Trixx utility I reduced the Watts by 25% for each of my 6 GPU’s. I’ve run them all for 24hrs using Claymore v9 with no problem. Getting an average of 1.2 kH/s.
I’m going to try this next. What do they say about pride and falling? The rig fell over again last night, running again with a further reduction in Watts.