Help please (ideas).
I recently took on a second had panda miner with 6 RX470s and 2 RX570s after changing motherboard because of broken PCIe slots I still can’t get GPU 2 & 3 to fire up and mine.
I have:
I have used Polaris free to 1 click the VBIOS and the others are running quite well (I think).
Ideas welcome. I’m lost for next steps.
D
Risers? Bricked cards? Are they all stock bios? They are doing quite low and you are using low memory clock…
Right. Managed to get one going. Used ATIFlash on a Rufus Boot USB with a stock Techpowerup bios.
Also brought Bioseditorpro and my 470s are running low watts now. I couldn’t get a better rate with editor for the 570s.
I out the other card on a test rig and confirmed not riser but flashing bios with HiveOS hasn’t brought it back to life. Now to try ATI Flash.
See excellent video here. Give it a like https://youtu.be/mTqNP-N38BY
lets see the OC settings you have.
atiflash is what hiveos is using also. have you switched the force flash ignoring security errors option?
Only wound the 570 in clocks. Was just wanting a stable rig at first. So many dead miners…to get here.
Sorry for screen. On phone.
Do you think I’m being overly conservative on 570s? Little scared ill damage them.
Good to know. I had no idea. Learnt so much in the last few days.
if you have them with custom bios ( edited the stock with polaris bios editor ), you can use these settings:
1168 core clock , 860 core voltage, 800 memory controller voltage, and 2050-2100 mem clock.
Dont use DPM states.
amdmemtweak --REF 20 or 30
Aggressive undervolting on.
i make with these settings 32.22 MHs
here check this out:
it consumes a lot of power coz i got the bad luck with the silicon lottery ( meaning some cards came badly from the manufacturer despite they are the same maker and model )
Well ill be dammed. I’ll play more tomorrow, but that was an extra couple. Awesome. Thank you so much!
-20 and already has aggressive UV on.
i meant 1168 
any wahy test what fits best. 1186 might be a bit higher and you can get dead gpu meaning you need to lower it or increase a bit the core voltage. but increasing core clock and voltage results in increasing temps and watts so find the sweet spot. also with fan speed, mine runs on 65% to keep the gpu at 53-54 degrees.
I’ve got some 580s on the water so keen to look at those. In New Zealand power is not that cheap. About 0.195c per kWh. So power matters in balance. It is still just profitable before OC. Now it is reasonable. I was quite please at how much Bios Editor Pro reduced the 470s power and confirmed the drop at the wall too. I like you got a GPU that was dropped on its head as a baby… last 570 is hungry for W’s.
i always use polaris bios editor to modify my card. its the free version. i have tested various memory timings and came to the conclusion that the one click bios mod is the best.
with it i can run higher memory clocks. i used to use 2050 because the timings were bad but now i can go over 2100 but it doesnt work better so no need. I see you cards are elphida memory so maybe you can try with 2100+ memory clock , 2120 2150. you have to make trials to see when the card dies and then reduce a bit to stabilize it.
i did some math equations to figure out how much power does the GPU consume and how much money it equals to and how much power per MHs is that and money and came to the conclusion in my case that 1mh is 7 cents while 10 watts is 4 cents so i get it to work with 103-105 watts but with 32.22 MHs. it was working before with 95 watts and 31.1 MHs.
your RX 470 should be working with very low power consumption as far as i know. so its a matter of optimization i think.
That is very insightful. You should write a thread on how to do the calculation. I’m sure others would enjoy.
Everything you say makes sense. I’ll look into the Elphida ranges.
Very happy with outcomes. First time above 175mh with 6 cards…so pleased with that. I’ll try the math myself. I also have solar but take that as variable with weather and therefore leave it out of equation.
Just wound up some generic points on the 470s and we are into the 30s. Will monitor for dead’s! 185.1mh
Try 2050 mem on them
Stable the whole night with no dead miners so I did push to 2050 & 2150 respectively.
Far out. 187mh and just ticked over $10/d Dual Mining ETC-Zil on EZIL. You legend. Thanks.
my pleasure.
last card runs a bit hot i think , you can try with 1150 or 1168 core clock and if you reduce the core clock you can try also reducing a bit the core voltage to 850 maybe or 845 if you like to test. if it dies then increase it a bit. its all a matter of finding what works best. now that you know the stable settings you can try to add more. the ones with 31 MH might improve a bit if you set 1168 core also on them. keep in mind that core clock is tied to core voltage so a certain level of core voltage can support up to a certain level of core clock. so if you increase the core clock and the card dies, then you need to increase a bit the core voltage to sustain the higher clock or revert back to previous settings of the clock.
for the temps i usually prefer to be not more than 60-65 but i like more under 60. you can set the fan speed to 50-55% stable run and see what happens
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