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Sapphire HD 7950 screen flicker

Last response: in Graphics & Displays
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July 2, 2012 5:24:40 PM

Hey everyone.

I've just recently set up a new tower for gaming, and just to kill some time, I've been messing around on Deus Ex: Human Revolution. Late last night, I began to encounter a pretty substantial case of horizontal lines/bands, or flickering, or something to that effect. I'm not really sure what to call it, because I've never seen it before.

Most of the panic reading that I've done in the past 5 hours in an attempt to remedy the problem has included fixes for seemingly similar problems, but I don't think that any of them really match the scenario that I'm in. I've been running the machine daily for about 6 days now (problem occurred on the 5th day) and seeing as how everything appears to be in order, troubleshooting-wise, I've resorted to customer service tickets, an RMA request, and now reaching out to fellow enthusiasts.

So here's the hardware run-down:

MB: Asus Crosshair V Formula (12-131-788 on newegg)
CPU: AMD 8-core fx-8150 3.6G (19-103-960 on newegg)
RAM: 4Gx2 G.Skill Sniper series (20-231-460 newegg)
SSD: 240G Corsair Force (20-233-268 newegg)
OPT: Lite-on Blu-Ray Burner (27-106-369 newegg)
PSU: Antec 750W (17-371-049 newegg)
VGA: Sapphire 100352sr HD 7950 (14-102-989 newegg)
All of this inside a Thermaltake Level 10 GT snow edition case, and the cpu being cooled by a Zalman Heatsink/fan assembly(35-118-223 newegg)

I'm only running one monitor, so I'm not thinking that it's the issue with >1 monitor having the same type of connection to the card; it's a new build, so I don't believe I'm dealing with a driver issue, as the only drivers installed are the current version which is up-to-date; I don't believe it's a power or heat concern, as the GPU remains operational, if not usable; and really, I'm just not sure where to go from here. I've taken a video of the problem on my phone and uploaded it to youtube, and it's viewable here: PLEASE TURN YOUR SPEAKERS DOWN, MY PHONE RECORDED VERY LOUD ... http://www.youtube.com/watch?v=2Zyranp5B18&feature=yout...

I guess I'm just wondering if anyone has seen this before or has any idea of what might be able to fix this issue, because it's breaking my heart seeing this card act like such a piece of garbage. I benchmarked it on Nexuiz and had anywhere from 59-300+ FPS, and I like the card when it works properly, but it seems like every time I sit down to play for a while, it craps out on me and ruins my game.

Please Help!
July 13, 2012 1:05:18 PM

I have the same vga as yourself but i run mine at stock levels (800mhz and 1250 clock) (stock speed for the radeon 7950) as it runs very well will no graphical issues...even when i have it on the OC'd speeds that sapphire provided (a difference of 100mhz) i did encounter line flickers...however mine was situated at the the lower portion of the screen.

by reverting the card to it proper stock speeds i have avoided this from happening. i would take a guess that maybe changing the voltage to your sapphire may be worth checking out, as when it was set to 9oomhz and clock of 1250 and by putting the voltage up 5% it appeared to run very well...i decided however to revert back to the stock settings as i dont believe ive done enough research on voltages on overclocking properly...your rig seems fine, i would send your starting off post to there main website with your video attached.
July 13, 2012 2:19:08 PM

If its the Sapphire OC edition, 900/1250 is stock. I've got the same card and havent had any issues. If you are overclocking the card you do have to up the voltage slightly as the sapphires by default have a lower voltage than other brand 7950's.

Are you only having the issue during Dues Ex? (Cant watch your youtube video while at work). What type of connection do you have from your card to your monitor?
Related resources
September 20, 2012 4:30:08 AM

I have the same card and a recent build and also get the same issue. My flickering is not as bad though. I am running a 600 watt corsair gs power supply though. I have tried reverting to different drivers, reseating the card itself, reboots, re-installing drivers. It appears to only happen for me on newer game such as guild wars 2 and skyrim, I have no issue with games such as KOTOR and KOTOR 2. I am stumped and have no idea what i should do next. I have emailed AMD to no avail, you can rest assured this is the last time i will be purchasing an AMD card for a new build. If anyone has a remedy to this problem please share.
October 13, 2012 10:31:52 PM

I know this is an old post but I have the same issues with my brand new XFX 7950. I have no issues when gaming or watching videos. But when I browse the web or am at my desktop I get random black lines and some blinking on websites when I move my mouse fast. I also can't get my monitor to wake up from sleep. Never had an issue with my old Nvidia card.
January 11, 2013 3:59:39 AM

Have the same problems with some games and not with other games
February 7, 2013 2:01:50 PM

ISSUE SOLVED WITH MULTIPLE FIXES



Ok Guys, Im going to be updating how I fixed the issue for those that read, My monitor is a 1080p 75hz monitor, even though I KNOW its 60hz The Catalyst ( CCC )
Program ( EIED ) Was telling me it was 75hz. So I manually set it to 60hz and everything appeared fine. However the flickers started,

I donwloaded software called Radeon Pro and created a new profile.

I click add new profile, when to the ATI folder and added it. Forced the settings I wanted like in CCC and disabled overdrive ( It still downclocks which is nice )
however this is just personal taste, what actually solved the issue was there was an option to manually force a refresh rate of 60Hz.

All I do now is run the profile just to make sure each time ( Im sure its auto anyway) and the flicker has stopped. The reason I believe the issue was happening was my FPS were going past 75, then down to 50 quickly in fast games like SC2 and LoL and the flicker happened. So the refresh rates were getting confused even though it said 60hz in CCC and I tried Vsync.

ALSO!

Coinciding with the fix I also set my games to borederless at the same time of doing the fix mentioned above so that may be the fix or the RadeonPro thing. Yet to test it fullscreen so try that.


Authough forcing 2d clocks didnt work for me, here is how to do it.
Open CCC, top left make a new profile, Close CCC.

Enable Hidden folders ( Search folder options )

The go to Your name on your PC -
APP Data
LOCAL
ATI
and go to your new Profile
EDIT IN NOTEPAD


and look for

<Property name="Want_0" value="30000" />
<Property name="Want_1" value="80000" />
</Feature>
<Feature name="PowerControl_PCI_VEN_1002&DEV_679A&SUBSYS_27601462&REV_00_4&BAB4994&0&0008A">
<Property name="Want" value="0" />
</Feature>
<Feature name="MemoryClockTarget_PCI_VEN_1002&DEV_679A&SUBSYS_27601462&REV_00_4&BAB4994&0&0008A">
<Property name="Want_0" value="15000" />



Now look for this

Now the 30000
and 15000 part are your idle clock speeds, just raise them or make them match your cards default clock speeds,

Like so


<Property name="Want_0" value="80000" />
<Property name="Want_1" value="80000" />


now this didnt work for me as my above method did, but it may work for some,
remember though this means your card with be a little bit hotter ( didnt happen to me in testing though )


You can also raise the two voltages to stay the same.
But again the above RadeonPro methode worked for me.


Thought I would be a nice guy and update how I solved it for others having issues.



Peace, ZII

Youtube.com/videofletcher
!