Quote from: Yarik47 on May 30, 2019, 06:17:02 AM

Quote from: pbfarmer on May 29, 2019, 07:24:24 PM

Quote from: kamisama233 on May 29, 2019, 11:43:56 AM

580 with ppt?, isn't that only vega support ppt? how to set 580's ppt?

All AMD GPUs since some time use PPT - I was setting them for my old HD7950 when I was still mining w/ it.

Process is exactly the same as for Vega. Create one using ODNT (or download one if you're feeling lazy and don't mind applying mystery settings to your GPUs), then just double click the reg file. I'm assuming you're talking Windows - the Linux process is a little more involved.

Btw, PPT was required for vega early on, because you couldn't properly undervolt w/o it. Same was not true for polaris, so using PPTs is more of a process choice (unless being used for more 'under the hood' things like modifying fan tables)

Very interesting. Could you tell us more about what PPT and ODNT are? I am very concerned about the energy efficiency of my RX488 ..
And how did you manage to raise the memory frequencies so high, with such a low voltage, the memory probably gives a lot of errors in this mode? My RX488 works 1100/2025 @ 855 and gives 30.5hash .. above, I cannot raise the memory frequency at such a voltage that the card would work without memory errors (HWinfo).
How can I do the same in the windows?

ODNT = OverdriveNTool - a simple, more stable, and generally better replacement for wattman (or other profile tools like afterburner, trixx, etc)

PPT = power play table. it is a section of the GPU bios which is converted to a registry file and imported into windows registry. It acts like a soft bios update for certain aspects of your GPU. You can read much more detail about this in many mining or OC threads - especially for vega. However, as I mentioned, it's not really necessary for polaris - you can do most things with any profile tool (wattman, afterburner, ODNT, etc)

I'm on linux - so i don't have a hwinfo64 type tool to monitor mem errors. They are supposedly reported in the system log, and I don't see any reported, but I don't necessarily trust the reporting is as robust as in windows. As I said, i'm not using any tricks - I set my GPU parameters, and it works. Not all cards are the same, even some of mine are better than others.

Also, if you flashed your bios, your straps are key to the frequency you can achieve. Which is why in my original comment, I was explaining how i relaxed some timings to get allow my ubermix flashed samsungs to increase 50-100 MHz