Quote from: cococo42 on September 26, 2017, 10:13:58 AM

Quote from: marimach77 on September 26, 2017, 08:52:33 AM

Quote from: cococo42 on September 26, 2017, 06:24:39 AM

Quote from: twofreckles on September 25, 2017, 12:00:59 PM

Quote from: cococo42 on September 25, 2017, 11:11:12 AM

In fact I've done (following steps on this video https://www.youtube.com/watch?v=sc5qFEIMYTs&feature=youtu.be) but as I've said I haven't achieved very good results... could you upload your pulse vbios to see exactly what have you changed?

Thank you again

I can't. If I remember correctly I got rx 570 pulse. So vbios will be different.

What does it mean you haven't achieved very good results. Can you see differance in power drain from the wall?

No, this is the problem, I can't see difference in power drain from wall, I've done following tests on vrom:

- added offset using instructions on the youtube link I've mentioned before (and trying different values: -100mv, -150mv)
- tried to change values on dpm state 0 (the rest of the rom values seems references instead voltages, so I thought that changing voltage for dpm state 0 and specifying this state on SMOS oc settings it will work). I've also changed voltages on memory dpm states (same value than on gpu dpm state 0)
- tried to change tdp values

Usually there is no change on power drain (from wall), and when there is usually the change is worse than the original. My (bad) numbers are:
- rx580 x 4 8g (2 pulse and 2 nitro se), with 3 usb risers and 1 connected directly to MB, 850W corsair PSU
- mining monero 835W from wall (~3000h/s) oc values 1275/2250 dpm state 2 (which is the one I'm using right now)
- mining ethereum 1120W from wall (without dag fix, with dag fix 1500W from wall) oc values 1175/2250 dpm state 2

Which oc settings are you using on SMOS?

For RX580 GPU I recommend core 1150 and mem 2200 for SMOS. Powerstage will not help a lot to reduce power drawn from the wall. I was using powerstage 4 (default) but power drawn from the wall (7x RX580) was too high for me (1350W) and not acceptable. As long as no undervolting implemented in SMOS I will use ethOS (can undervolt my rig and have 950W from the wall).

Could you explain a little how have you undervolted your rx580 using ethos? directly in miners using specific params? some os command?

You need ethOS 1.2.5 and then edit local.conf file with specific params like globalpowertune and vlt.