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Can't overclock my 7900 gt

post #1 of 9
Thread Starter 
i downloaded ati tool 0.25 and coolbits 2.0 and tried to overclock my xfx 7900 gt. in ati tool as soon as i checked for fragmentation, it instantly with in the first second of testing started having errors and little yellow dots. i never see this in actual game play though. ati tool wouldn't overclock it even one mhz so i tried coolbits and when i either tried to slide the bar or do a test to find the highest clock speed. It wouldn't go anyfurther then what hte card was sent to me stock, 520/750. does anyone know how to overclock these xfx 7900 gt cards?
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Alienware M14X R1
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1600x900 
CPUGraphicsHard DriveOS
I7 2.2, 3.1 turbo GT 555M Overclocked Crucial M4 256 GB SSD windows 7 
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1600x900 
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post #2 of 9
Could you take a picture (As sharp as possible) of the sticker on your PSU?
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#well
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Intel Core i7 4770k Gigabyte Z87X-UD4H Sapphire RX 580 Corsair CMX8GX3M2A2000C9 
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post #3 of 9
why do u need to overclock tht its fast already lol, use Rivatools and make sure you have the latest driver http://www.nvidia.com/object/winxp_2k_91.47.html
post #4 of 9
Thread Starter 
will do once i get home form work
Alienware M14X R1
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Alienware M14X R1
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CPUGraphicsHard DriveOS
I7 2.2, 3.1 turbo GT 555M Overclocked Crucial M4 256 GB SSD windows 7 
Monitor
1600x900 
CPUGraphicsHard DriveOS
I7 2.2, 3.1 turbo GT 555M Overclocked Crucial M4 256 GB SSD windows 7 
Monitor
1600x900 
CPUGraphicsHard DriveOS
I7 2.2, 3.1 turbo GT 555M Overclocked Crucial M4 256 GB SSD windows 7 
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1600x900 
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Alienware M14X R1
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CPUGraphicsHard DriveOS
I7 2.2, 3.1 turbo GT 555M Overclocked Crucial M4 256 GB SSD windows 7 
Monitor
1600x900 
CPUGraphicsHard DriveOS
I7 2.2, 3.1 turbo GT 555M Overclocked Crucial M4 256 GB SSD windows 7 
Monitor
1600x900 
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1600x900 
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post #5 of 9
cool
let me know!
post #6 of 9
You have the 7900GT. Don't get the newest drivers, they direct out SUCK for overclocking (At least from my perspective).
Get the 84.56, they're known as one of the best gaming drivers so far.
#well
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Samsung 840 EVO Generic DVD±RW Burner Noctua NH-D14 Windows 10 
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Dell U2711 Samsung SyncMaster 2233 Ducky DK9008 Overclock.net Edition, Cherry MX B... Corsair TX850 
CaseMouseMouse PadAudio
Fractal Design Core 2500 Logitech G303 QPAD HeatoN L M-Audio Fast Track USB 
AudioAudio
Beyerdynamic DT-770 80 Ohm AntLion ModMic v3 
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Intel Ivy Bridge 3210M Intel HD 4000 Graphics Soldered Corsair Vengeance  
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#well
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Lenovo L530
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CPUMotherboardGraphicsRAM
Intel Core i7 4770k Gigabyte Z87X-UD4H Sapphire RX 580 Corsair CMX8GX3M2A2000C9 
Hard DriveOptical DriveCoolingOS
Samsung 840 EVO Generic DVD±RW Burner Noctua NH-D14 Windows 10 
MonitorMonitorKeyboardPower
Dell U2711 Samsung SyncMaster 2233 Ducky DK9008 Overclock.net Edition, Cherry MX B... Corsair TX850 
CaseMouseMouse PadAudio
Fractal Design Core 2500 Logitech G303 QPAD HeatoN L M-Audio Fast Track USB 
AudioAudio
Beyerdynamic DT-770 80 Ohm AntLion ModMic v3 
CPUGraphicsRAMRAM
Intel Ivy Bridge 3210M Intel HD 4000 Graphics Soldered Corsair Vengeance  
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post #7 of 9
try both
post #8 of 9
I am having the same problem with a BFG 7950GT. I used coolbits and I can not move the slider even 1 mhz or it fails the test. I even tried to underclock the card and it will not let me do that either. I have used the 91.47 and 92.91 drivers and neither work.
post #9 of 9
I have a 7900gt, my speeds are 552/784. which arent that good from what i understand I see guys on here with 700/1200 and they have the same card. The most it will let me go is 900/800 if i move the slider al the way to the right, Im sure it would lock up my pc the moment i test it. Im using the 6.14 drivers. Someone please help!
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AMD Athlon™64 X2 3800 ASUS A8N-SLI nForce4 SLI Nvidia 7900GT/GTO 1024MB 
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AMD Athlon™64 X2 3800 ASUS A8N-SLI nForce4 SLI Nvidia 7900GT/GTO 1024MB 
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XP Home Sony 50 inch hdtv PS2 NZXT PF-500 500Watt 
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