Post
Topic
Board Mining (Altcoins)
Re: AMD Mem Tweak - Read/modify mem timings on the fly - [Vega Friendly] [Win/Linux]
by
boxraider
on 13/05/2019, 02:39:55 UTC
You don't need 1360MHz at all for your core clock, usually with Polaris miners set the core clock at 1150MHz and undervolt as much as possible (around 850mV).

I have been trying to but it gets real glitchy. I've see. Much lower core settings but haven't been able to get it lower than 1360-1400mhz/950-970mv

Is it because my clocks set too high? Most people set it to 2300 and mines at 2500. I wont be able to get near 30mhs without boosting my clock speed unfortunately. Not to mention I'm SOL on timing for now (keeps reverting)

Edit: Iamtuut - just did a restart its picking up now. I got it down to 950mv. Afterburner wont read my 880mv setting. Hwimonitor also! I noticed something about the AMD tweaker tool. No mining running off a fresh restart will have RFC timing of 43 but when she starts mining itll jump to 219. That's normal right? Just curious as to how this tool operates in sequence lol I'm super finicky/dumb when it comes to trying to learn channels or flow.

Yes rfc will jump up once the card is active.
Apply you timing edits once the card is running. You should be able to drop you rfc quite a lot.
Also try rc lower most of my rx cards go down to between 56-64

I cant get the dang thing to stick except for once. It was an anomaly on my part. I tried to redo the same method to get in my rfc to stay and my other timing stuff but it would either crash or just not apply. When it did apply I was able to get 31~mhs with close to optimal wattage and hashrate

Edit: btw, i know i re edit alot but, I've found my solution towards the XFX Fatboy RX 590. I just used wattman with after burner. Over clock first on afterburner then lower voltage on wattman (core voltage wasnt giving me an option to lower it) but thanks to you guys on this thread specifically!
I got my 31.8-9mhs from mclock-2255, mcore 855, cclock-1300, ccore 855 finally with 136w It's not the tested 32.4mhs but I'm sure buddy stated 140w for that .5mhz extra. But thanks to you guys for putting in some effort to teaching me. I'll try to post helpful shit for anyone that might find it useful.  Grin