Well... as expected.
20 minutes in with these settings:
-tt 58 -cvddc 750 -cclock 1300 -fanmin 0 -mclock 904 and I get this:
WATCHDOG: GPU 0 hangs in OpenCL call, exit
WATCHDOG: GPU 0 hangs in OpenCL call, exit
Quit, please wait...
then the computer freezes and I have to reset it. Going to dial back to -mclock 900 and let it sit for a few hours.
EDIT:
51 minutes in and still holding but doesn't seem stable.
58C / 57C / 56C giving ~50.5MH/s each but it's bouncing between ~45MH/s to ~50.5MH/s at times.
DDU, fresh install of the drivers (19.9.1, I had issues with .2) - just install drivers from Device Manager.
Set all clocks/power in miner as you've been trying.
My card is Saphire (without PULSE) Radeon RX 5700xt. Maybe I had luck with the vendor and the model. Running already 22 hours with stable hashrate (no bouncing), no crashes, mem temp 76 degree C, power draw reported 94W, fans about 44%, room temperature 22 degree C. Using PM with -tt 58 -cclock 1300 -mclock 910 -cvddc 750
I'm using XFX. Unfortunately, I'm not sure if there's any way that we can determine if there are various types of memory yet. (Micron, Hynix, Samsung, etc)
It could be that XFX might use Micron where Sapphire might use Samsung. Something of that nature.
This would explain why I cannot get stable memory clock beyond 900 where some can even go beyond 910. Of course, every card is different. Question is, how much?
I'll look into DDU some other time. I'm pretty busy this week and that can be time consuming should there be a complication of any kind. Thus far my 5700 XT rig (of three XFX cards) has been running without issue for almost 11 hours with -tt 58 -cvddc 750 -cclock 1300 -fanmin 0 -mclock 900
If you recall when I tried 904 I quickly had issues. Unfortunately, they're not immediately obvious. It could take up to an hour for the OpenCL hang and system freeze. That's a long time to slightly (slowly) make minor adjustments to clock speeds in hopes for 2 or 3 MH/s extra.
I'm also keeping in mind that everything about these cards are still very new. As stated, I don't even know what kind of memory (other than 8GB of DDR6) I have. I don't think that -rxboost or -straps would make any difference yet either. So there's plenty of room for improvement and I see no reason why we can't get at least another 10% from these cards without sacrificing efficiency. There will be driver updates, software updates, bios firmware modifications, etc. I think that we just need to simply settle on whatever we each find to be most stable and wait until these improvements release.