Originally Posted by Roboyto
Not sure if everyone saw this, but it is a call to arms Red Team!
Yep seen it
and plan to make a sub
First and foremost.
Forgot to mention that you will never achieve a FULL control over the power management on these cards. The driver will perform certain adjustments without the user knowing about it.
Lint to quote
Next when you run OBS, it creates a load and is making your card shoot to 1500 RAM and it's picking a VDDC out of your DPM/Limit Tables to use. If you do what I posted before for Enzarch to try that will improve the situation. I get similar scenario on my card when use FastStone Capture to do screen video and same with Heaven, etc. Only difference my Heaven starts using higher RAM but FSC stays below <=1250MHz. I will try to setup a camera to make video of my system
, show desktop idle / use, then fire up FSC and Heaven / Valley, etc.
Differing apps create different VDDC even at same clocks, most give also a non linear VDDC, only GPU-Z Render test gives a flat line (so far from what I've seen & others reporting). Again can't be controlled, that's why Berkeley (I & others) when setting manual voltages for each DPM use GPU-Z for before / after.
Originally Posted by Shodin10k
I thought onebit said that even doing this doesn't fix the max ram speed issue in desktop. I thought this is why he made an AMD ticket.
It does not fix it, it improves it
(well defo in my case and a few others).
At desktop idle I get no shooting up, when moving around mouse no shooting up, due to when say opening a window I may get a very slight shoot up to 3xxMHz but RAM stays 150MHz. If something like say MSI AB graph is running again 300MHz/150MHz and if move mouse on graph GPU shoot 3xx/150MHz and very very occasionally 3xx/1250MHz.
Originally Posted by Enzarch
Yes, these are blackscreens when under load. There isnt a large group of us with this particular problem; where is will blackscreen above a certain voltage threshold, and this problem is greatly exacerbated when running higher refresh rates.
Doing what I posted earlier won't hurt and as highlighted above should improve things at desktop.
I would assume under load blackscreen would be:-
a) lack of VDDC
b) perhaps RAM / MC just can't cope, so "silicon lottery", perhaps try lower RAM clock
c) upping VDDCI (aka Aux Voltage may help, kizwan has solved his similar issue that way).
If it's still occurring, I'm sorry but got no more ideas
, perhaps using a differing ROM will help or ask tech support of your card if they have an updated ROM. I have done this twice on 2 Sapphire cards I own/owned. I wasn't having blackscreen but just wanted a newer version of ROM if they had one
.Edited by gupsterg - 2/6/16 at 12:32am