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2x Radeon HD 7900 Series, 18.2.2 Adrenalin update + PUBG - Did it break my second graphics card?

Question asked by frallankung on Feb 21, 2018
Latest reply on Mar 8, 2018 by kingfish

Hello AMD and community,


Hope you're all well.


My specs:


-    Windows 7 Ultimate 64 bit

     Intel i7-3770 CPU @ 3.40GHz

     12 GB RAM


-    2 x AMD Radeon HD 7900 Series

     Radeon Software Adrenalin Edition 18.2.2


-    2 x AOC E2770SH 27" 1920x1080 screens, 1 ms, 60hz


I've never had any issues with games prior to downloading PUBG (Player Uknown's Battlegrounds) in late January. At first I was able to run it just about fine on either high or ultra settings with only minor lag. Then came the Windows Creator update, the PUBG and Radeon Software Adrenalin Edition 18.2.2 - and since the experience has sucked.


The game started lagging horribly and going from high/ultra on windowless, I had to "downgrade" to fullscreen and very low on all. I had a friend over and he told me to make sure my drivers were updated - I knew from before my dual screens would muck up during and after driver updates so I was cautious but did it anyway. We tried messing about a bit in the Radeon Settings but it would only make the game crash completely along with the Radeon Settings module.


The game started to (and still does) flicker badly, at first how you'd picture an old TV-set look like when viewed through a camera. This flicker would disappear when I tabbed in and out of the game a few times, but then I get god awful anti-aliasing and texture-flickering issues.


I've reset all edits I made in the Radeon Settings - and now I'm not sure my second graphics card or crossfire is running correctly.


I thought it might be my dust in the computer or my monitors messing with me, so I cleaned the entire comptuer (with proper care) and shifted the monitor cables - now whenever I plug into one of my gfx cards the screen wont go live, neither on VGA or HDMI. Now I'm running 1 HDMI and 1VGA in the 'other' gfx card.


After the resets, when I pull up the settings and system overview, it looks like this:




Which has me wonder - shouldn't I have 3072 * 2 in memory size?


I went into the global game config again to do a simple test - raising the gfx card fan % from 20% to 100% and when I do it instantly drops back and refuses to change from 20%.


The other one works just fine.


I'm at my end here and since I'm not a very technical guy really, I would appreciate any input from you guys on any of these issues.


Thanks for taking the time, best to you all.