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Pixels shaking on high GPU load

post #1 of 6
Thread Starter 
About 7 months ago I bought AMD Radeon SAPPHIRE HD 6770 1GB GDDR5: http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1073&pid=1190&psn=&lid=1&leg=0# everything worked fine until sometime ago I discovered some horizontal pixel shaking on high GPU load. I happens about 2-3 minutes after I start a game or a stress test. Temperatures on GPU doesn't exceed 66°C (151°F) when loaded, pixels continue to shake about minute after I close a game or a stress test. Here is a video that shows it, I run FurMark 1.9.2 in background: http://www.youtube.com/watch?v=5M8gDf5vyps
Note that it isn't overclocked.

What kind of problem is that, and how I can fix it?
Thanks in advance for your answers.
Edited by mss1988 - 3/8/12 at 9:40am
post #2 of 6
VGA or DVI/HDMI cable?

VGA > interference! I get those kind of issues all the time with my laptop with VGA if I have laptop plugged in.

VGA/DVI/HDMI > Dirty power going into computer?
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Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
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post #3 of 6
Thread Starter 
My monitor has only VGA input, and video card have only DVI output, so I use DVI to VGA adopter.
post #4 of 6
Thread Starter 
Is there solution for my problem?
post #5 of 6
Thread Starter 
I reinstalled drivers (twice) and problem is gone (at least for now) smile.gif
Thanks for your help smile.gif
post #6 of 6
no problem. You will notice the difference (its worth it) to get a DVI/hdmi monitor, the colours are also better, no noise in picture quality.
vga is an analog signal
DVI/hdmi is a digital signal (no big video difference between the two)
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Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
CoolingCoolingOSMonitor
Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
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Coolermaster Storm QuickFire Stealth Cherry MX ... Antec Earthwatts EA-750 Antec 300 Logitech G5 
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Intel 600p NVME Samsung NVME Windows 10 RS3 Dell P4317Q 
KeyboardPowerCaseMouse
Cooler Master QuickFire Cherry Brown Dell 1500W Alienware Area-51 Logitech MX5500 
CPUMotherboardGraphicsGraphics
AMD FX-8350 (Vishera) Gigabyte GA-990XA AMD 285X (unreleased) AMD 285X (unreleased) 
RAMHard DriveHard DriveHard Drive
Mushkin Enhanced Blackline 8GB (996679) Western Digital WD10EALS 1TB Blue Corsair Force Series GT CSSD-F180GBGT-BK 180GB Intel 530 Series SSDSC2BW240A401 240GB 
Optical DriveCoolingCoolingCooling
Sony 20X Sata DVD-RW Scythe Mugen 2 rev B (3) Scythe Slip Stream SY1225SL12H-P Antec Tri-Cool 140mm 
CoolingCoolingOSMonitor
Antec Tri-Cool 120mm Scythe Ultra Kaze DFS123812-3000 Windows 7 Pro 64bit ASUS PA248Q 24.1" IPS 
KeyboardPowerCaseMouse
Coolermaster Storm QuickFire Stealth Cherry MX ... Antec Earthwatts EA-750 Antec 300 Logitech G5 
Mouse Pad
Steel Series Starcraft 2 Marine 
CPUMotherboardGraphicsRAM
Opteron 6386 SE TYAN S8236-IL el crappo onboard vga 48GB RDDR3-1600 ECC 
Hard DriveHard DriveHard DriveOS
Seagate IronWolf Intel 200G DC S3710 SATA SSD Seagate Pulsar.2 ST200FM0002 SAS SSD VMWare Esxi 6.0 + Freenas 9.10 
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