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**THE AMD DRIVERS THREAD**

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LtMatt said:
Probably does very little. That was brought in around Crysis 2 time when Nvidia used to heavily tessellate things that couldn't be seen to deliberately harm AMD performance. AMD's tessellation performance is high now so i wouldn't expect to see any drastic changes with any mid to high range tahiti card.
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Thanks
I might run Heaven everything Low apart from Tessellation and run two runs one AMD and another App

Will report back. :D
 
shankly1985 said:
Change resolution to 720p and then back to what you using now should fix that.
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This fixed it

Black screen - AMD/ATI users • Link
1) Navigate to the game's save folder.
2) Edit the file PROF_SAVE_profile using Notepad.
3) Modify the entry GstRender.FullscreenEnabled to 0
3) Modify the entry GstRender.FullscreenScreen to 1
4) Save the file, then change its properties to Read only.
5) Launch the game. Navigate to the Video menu in the options menu.
6) Change the undefined monitor number to 1
7) Modify the screen resolution option to a resolution lower than your normal/native resolution.
8) Modify Fullscreen to ON. Apply the changes.
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LtMatt said:
You sure? I only get that when my core voltage is too low and ive been playing a hell of a lot of battlefield 3 recently on 13.8 and ive definitely had zero stability issues. Have you got any overlays or radeonpro running with it?
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nope no overlay or radeonpro. Its a pretty clean install with the latest runtimes and basic apps and thats it.
 
Th0nt said:
Thanks for the top advice guys. Cleaned using the AMD tool and installed the new Beta 2's. Not run the game to compare yet (patch being applied), is the frame pacing automatically applied or is there any other settings to make straight away?
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Frame pacing should be on by default, like crossfire. You can check by looking in CCC under gaming and 3d applications.

Phixsator said:
nope no overlay or radeonpro. Its a pretty clean install with the latest runtimes and basic apps and thats it.
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No idea then mate. Rock solid stable here for games. Getting the driver installed was the only problem i had. :p
 
LtMatt said:
Frame pacing should be on by default, like crossfire. You can check by looking in CCC under gaming and 3d applications.



No idea then mate. Rock solid stable here for games. Getting the driver installed was the only problem i had. :p
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figured it out. The 13.8 is causing a bigger power draw and more heat. One of my 7950 is of very low asic quality(55% or something like that) and needs +20% power in the ccc overdrive option to remove the crash bug and stay stable in BF3 . The heat is immense its bloody crazy. Its all in a corsair carbide 540 air with 3 140mm outtakes and a corsair h100i functioning as intake placed as low as possible in the front to push as much air to the gfx's yet they spike in mid 80ish where if i used the old catalyst 13.6 beta they would sit around 71-73.
 
Phixsator said:
figured it out. The 13.8 is causing a bigger power draw and more heat. One of my 7950 is of very low asic quality(55% or something like that) and needs +20% power in the ccc overdrive option to remove the crash bug and stay stable in BF3 . The heat is immense its bloody crazy. Its all in a corsair carbide 540 air with 3 140mm outtakes and a corsair h100i functioning as intake placed as low as possible in the front to push as much air to the gfx's yet they spike in mid 80ish where if i used the old catalyst 13.6 beta they would sit around 71-73.
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I knew it would be something like that. Glad you got it sorted. Battlefield 3 is fast and smooth with 13.8 beta 2.
 
Kinda upset about it though.. thinking of ripping one of them out since it seems in my case that i would have to watercool them to keep the properly cooled due to the one horrible quality card i have.. i just checked the bios of it and it has a default vddc of 1250!!!! i mean WTF!
 
LtMatt said:
What card have you got?
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I got 2 sapphire 7950.. One of them and the bad one is the flex version with a factory OC of 925 on the core and thats it. The other one is the first one they released with their aftermarket cooler on and no OC and a nice ASIC qual of almost 90%. THinking of just OCing the balls of it and stick with it until i can afford either the highest tier from the new AMD lineup or a 780 (after i have seen new lineup benchmarks.)
 
Phixsator said:
I got 2 sapphire 7950.. One of them and the bad one is the flex version with a factory OC of 925 on the core and thats it. The other one is the first one they released with their aftermarket cooler on and no OC and a nice ASIC qual of almost 90%. THinking of just OCing the balls of it and stick with it until i can afford either the highest tier from the new AMD lineup or a 780 (after i have seen new lineup benchmarks.)
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What are the voltages of both cards at stock? Maybe the hot one is a boost card and the voltage is 1.25v stock. There are ways around that. We can flash a new bios to remove the boost part of the bios or you can under volt it yourself. 1.25v for 925 core is serious over voltage, even for the worst clocking 7950 known to man.
 
LtMatt said:
What are the voltages of both cards at stock? Maybe the hot one is a boost card and the voltage is 1.25v stock. There are ways around that. We can flash a new bios to remove the boost part of the bios or you can under volt it yourself. 1.25v for 925 core is serious over voltage, even for the worst clocking 7950 known to man.
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ive already tried to undervolt it and it fails hard. Perhaps i can sell it off. Would love to get my hands on the new AMD lineup anyway. But if you have any links to a custom bios that would work i could give it a spin when im bored.
 
Phixsator said:
as i noted above. the default volt is 1.25. Crazy stupid!!
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Go here. Ask the thread starter Kaboom to make you a bios that removes the boost part of your card. First though you need to find out how much you can lower your voltage on the core. Both my 7950's need at least 1.038v to be stable at 925/1250. Both my cards stock voltage was 1.25v. Ensure +20% is set all the time on both cards.
 
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