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[Official] AMD R9 390/390X Owners Club - Page 627

post #6261 of 11903
Quote:
Originally Posted by TsukikoChan View Post

also, i'm being stupid here but the VSR that you can turn on in crimson, that takes whatever display you mount it on (e.g. 1080p monitor) and treats it ingame and onscreen as a 1440p+ resolution that it automatically downscales to 1080p which would make things nicer looking? how much of a hit does it have on performance? do you nee to do anything special in games to get it to work?
Well, your graphics card has to work with 1,8 times more pixels; so the performance goes down respectively. Other than that, I haven't had any issues with VSR (or DSR @ nVidia) yet.
post #6262 of 11903
I woke up this morning and my Powercolor 390 was going 100% full fan speed, and no matter what I set my fan curve to (auto, fixed, or manual) it would not decrease the fan speed until I rebooted my machine.

What's up with that?

*edit* On a positive note, the card was idling at 31C lol
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post #6263 of 11903
Quote:
Originally Posted by TsukikoChan View Post

hehe, sorry sorry, i get lost of who said what in this thread XD ty! <3
It hasn't solved the issue but it has alleviated the symptoms :-) turning off the monitor or a black screen will still cause issues with explorer from time to time and plays havoc with my icons but the app lets me put things back to where they were easily :-)

also, i'm being stupid here but the VSR that you can turn on in crimson, that takes whatever display you mount it on (e.g. 1080p monitor) and treats it ingame and onscreen as a 1440p+ resolution that it automatically downscales to 1080p which would make things nicer looking? how much of a hit does it have on performance? do you nee to do anything special in games to get it to work?

I was obviously joking about the icons part. I'm not here for the thank you's. But still, you're welcome. thumb.gif

About VSR, it's what NovaEnid said basically. With VSR you just have your GPU render everything at 1440p (you can even have your desktop at 1440p but it looks crappy and blurry) and have the GPU scale it to your screen. It won't downscale anything, as far as I know. It's not SSAA, it's true 1440p on a 1080p screen and as such will work with any game as long as it's enabled in the driver. You just have to change the resolution in game to what you want. Other than that, the performance hit is the same as when running a native 1440p monitor, no more, no less.
post #6264 of 11903
sounds like a fun thing to try out XD
post #6265 of 11903
Okay guys, i really need some help here. I'm still having the black screens issue. It happens just by adding core voltage, when i increase it to 200+MV it crashes. Nothing else was changed, just increased voltage and boom, crash. Tried unplugging the monitor cables but that did not make the blackscreen go away :/
Pj
post #6266 of 11903
Quote:
Originally Posted by peejay2104 View Post

Okay guys, i really need some help here. I'm still having the black screens issue. It happens just by adding core voltage, when i increase it to 200+MV it crashes. Nothing else was changed, just increased voltage and boom, crash. Tried unplugging the monitor cables but that did not make the blackscreen go away :/
Pj
I had a similar black screen issue, as did several other members on this board, and it usuaaaaaaaaally is caused by a psu/powerdraw problem. For myself, my cpu OC caused instability when running with my 390x so lowering my OC stabilised the black screens and crashes. New Psu should fix that for me (as it did another member whose name i cannot recall). Check how much power your 390 and cpu are drawing and maybe lower some OCs to test stability.

on the same note, there are still blackscreen bugs still raised in crimson so it could be that as well.
post #6267 of 11903
I can also relate to that black screen issue, but it also requires a BIOS reset for me for some unknown reset, if I don't, I won't get a picture out. These issues only showed at +175mV to +200mV on the card under heavy load.
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post #6268 of 11903
My black screen issues seem to come exclusively from instabilities with my overclocks. The fact that every game or benchmark reacts differently drives me nuts. I've been playing a lot of Witcher 2 these last few days (To see the whole story before playing 3. I've already played the first Witcher game but had held back from 2) and was getting crashes. After I fed up, I lowered my memory overclock from 1700MHz to 1625MHz and I was getting a lot of artifacts. To establish a baseline, I can play BF4 with 1150/1700MHz at +60mV (or maybe +55mV) for hours no problem. Same for Inquisition and it was ok with the Witcher 3 from my really brief testing. With Witcher 2 boom, blackscreen in no time. 1150/1625MHz at the same voltages gives me artifacts and I have to give it like +70 or 75mV for it to be stable. At that point, I think even 1700MHz memory is ok but I can't say for sure. I can also forget any clocks higher than 1160MHz, as that needs +85-90mV to be stable and 1165MHz and above show artifacts even at +100mV. What I have noticed is that with higher (and potentially less stable, it seems) memory clocks, instabilities will more often lead to a downright crash (black screen) instead of plain old artifacting. Once the core is stable enough, higher memory clocks will work. That is, up until 1700MHz or maaaaaybe 1725MHz. 1750MHz is out of the question for my card, sadly.

So my question is, is Witcher 2 to blame or is my card a worse overclocker than I initially thought? Sad thing is that during Witcher 2 in particular, temps get out of control (sort of) after a while when pushing over +70mV (so about 1.25V Vcore), reaching 79C on both the core and VRM1, and that may compromise stability even further. At this point I'm thinking about how I can get a simple 120mm fan to blow air right onto the GPU heatsink while ramping its speed up and down depending on the GPU temps. I'm even thinking about going water (AIO) but I'm too broke at this time to even consider it more seriously.
post #6269 of 11903
Quote:
Originally Posted by TsukikoChan View Post

I had a similar black screen issue, as did several other members on this board, and it usuaaaaaaaaally is caused by a psu/powerdraw problem. For myself, my cpu OC caused instability when running with my 390x so lowering my OC stabilised the black screens and crashes. New Psu should fix that for me (as it did another member whose name i cannot recall). Check how much power your 390 and cpu are drawing and maybe lower some OCs to test stability.

on the same note, there are still blackscreen bugs still raised in crimson so it could be that as well.

Yes, that's what i thought. I got a 750w psu from coolermaster tho so there should not be a problem :/
I tried to Use to seperate cables coming from the psu which works, sometimes... Super weird :/ any idea?
post #6270 of 11903
Quote:
Originally Posted by peejay2104 View Post

Yes, that's what i thought. I got a 750w psu from coolermaster tho so there should not be a problem :/
I tried to Use to seperate cables coming from the psu which works, sometimes... Super weird :/ any idea?

Do you mean you get a BS only when you add 200+ mv or when you add any mv? You don't get it if you keep the vcore at stock?
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