I am having the same issue, with almost the exact same build. It even persisted on a clean install of Win 7.
System Specs:
OS Name Microsoft Windows 7 Ultimate
Version 6.1.7600 Build 7600
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name ASTERIA
System Manufacturer Gigabyte Technology Co., Ltd.
System Model GA-890GPA-UD3H
System Type x64-based PC
Processor AMD Phenom(tm) II X6 1055T Processor, 2800 Mhz, 6 Core(s), 6 Logical Processor(s)
BIOS Version/Date Award Software International, Inc. FF, 11/24/2010
SMBIOS Version 2.4
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "6.1.7600.16385"
User Name Asteria\anovak
Time Zone Pacific Standard Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 7.50 GB
Available Physical Memory 5.68 GB
Total Virtual Memory 15.0 GB
Available Virtual Memory 12.9 GB
Page File Space 7.50 GB
Page File C:\pagefile.sys
Graphics Hardware Info:
Primary Adapter
Graphics Card Manufacturer Powered by ATI
Graphics Chipset Radeon HD 6800 Series
Device ID 6739
Vendor 1002
Subsystem ID 0B00
Subsystem Vendor ID 1787
Graphics Bus Capability PCI Express 2.0
Maximum Bus Setting PCI Express 2.0 x16
BIOS Version 013.007.000.006
BIOS Part Number 113-C2230100-100
BIOS Date 2010/11/12
Memory Size 1024 MB
Memory Type GDDR5
Core Clock in MHz 775 MHz
Memory Clock in MHz 1000 MHz
Total Memory Bandwidth in GByte/s 128.0 GByte/s
Does anyone have a link to the latest 12.x drivers? I reinstalled and I'm stuck with whatever came on the CD that shipped with the card.