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6950 underclocking

post #1 of 14
Thread Starter 
For some reason whenever I do anything graphically intensive, my 6950 underclocks to 600 Mhz on the core, even if I overclock it to 1000 Mhz at 1.3v...

I need this handled asap!
Any and all help!
Thanks!

P.S. I already ran driver sweeper and reinstalled latest drivers
    
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post #2 of 14
Its overheating? Does it underclock when running on stock settings?

(even though you've got a decent heatsink and its in open bench)
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post #3 of 14
If it's throttling then it's either the temps or the psu. Can you try with a different psu?
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post #4 of 14
If you're using afterburner make sure you check "Force Constant Voltage"
    
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post #5 of 14
your 3dclocks may be wrong(just a guess... im probably wrong) in after burner set your own 3d/2d cloaks in the profile section in the setting menu
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post #6 of 14
Thread Starter 
Alright, for one, it's reference, so it idles at 60 degrees celcius stock, and runs 84 celcius under load, with fan at 100% its 54 celcius and 75 celcius.

I set both 3d and 2d profiles to stock, however it still underclocks to 600 Mhz. However it isn't a steady 600 Mhz, it fluctuates rapidly from 600-650.

I don't actually have another psu to test it with...
    
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post #7 of 14
Try getting your hands on another psu. I'm leaning towards the psu dieing now.
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I is bad@naming
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Up and running!!
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CPUMotherboardGraphicsGraphics
Intel 4930k Asus Rampage IV Black edition Powercolor 7870 PCS+ Sapphire 7950 
RAMHard DriveHard DriveHard Drive
16gb 2133mhz G.Skill Sniper  Kingston SSD Western Digital R4 Seagate Barracuda 
CoolingCoolingCoolingOS
EK Supremacy acetyl/Nickel XSPC EX240 Phobya DC-12 400 Windows 7 
MonitorKeyboardPowerCase
Asus 23.5" Corsair K70 Antec True Power Quattro 850w Coolermaster Storm Trooper 
MouseMouse PadAudioAudio
Logitech G400 Steelseries QCK Schiit Magni Schiit Modi 
Audio
Hifiman HE-400 
CPUMotherboardGraphicsRAM
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Corsair Vengeance 30gb Kingston SSD 500gb seagate Western Digital R4 
Hard DriveOptical DriveCoolingCooling
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CoolingOSOSOS
Phobya DC12-400 Windows 7 Home Premium 64bit Windows 8 pro 64bit Ubuntu 
MonitorMonitorKeyboardPower
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post #8 of 14
Thread Starter 
Hmm... do you think the fact that my processor runs off of only a 4 pin power connectyor might have anything to do with it?

Technically my board is a 95w board, but it's been running my 1055T fine at 4Ghz for a year now...
    
CPUMotherboardGraphicsRAM
AMD 1055T 4.0 Ghz Asus M4A785TD-V Evo Asus 560Ti DirectCuII Patriot sector 7 DDR3 6GB (1866Mhz, 9-9-9-25) 
Hard DriveOptical DriveOSMonitor
3xWD 500GB Caviar Blue Raid 0 + 1 TB F3 LG DVD burner Windows Seven ultimate 64 Asus VW266H 
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Microsoft Sidewinder X6 Corsair TX750 Custom Techbench Logitech G500 
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Gnarly Fish Roll'd 
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Reply
    
CPUMotherboardGraphicsRAM
AMD 1055T 4.0 Ghz Asus M4A785TD-V Evo Asus 560Ti DirectCuII Patriot sector 7 DDR3 6GB (1866Mhz, 9-9-9-25) 
Hard DriveOptical DriveOSMonitor
3xWD 500GB Caviar Blue Raid 0 + 1 TB F3 LG DVD burner Windows Seven ultimate 64 Asus VW266H 
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Microsoft Sidewinder X6 Corsair TX750 Custom Techbench Logitech G500 
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Gnarly Fish Roll'd 
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post #9 of 14
Thread Starter 
Or perhaps I could try another power connector on the PSU?
    
CPUMotherboardGraphicsRAM
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Hard DriveOptical DriveOSMonitor
3xWD 500GB Caviar Blue Raid 0 + 1 TB F3 LG DVD burner Windows Seven ultimate 64 Asus VW266H 
KeyboardPowerCaseMouse
Microsoft Sidewinder X6 Corsair TX750 Custom Techbench Logitech G500 
Mouse Pad
Gnarly Fish Roll'd 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
AMD 1055T 4.0 Ghz Asus M4A785TD-V Evo Asus 560Ti DirectCuII Patriot sector 7 DDR3 6GB (1866Mhz, 9-9-9-25) 
Hard DriveOptical DriveOSMonitor
3xWD 500GB Caviar Blue Raid 0 + 1 TB F3 LG DVD burner Windows Seven ultimate 64 Asus VW266H 
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post #10 of 14
plug your gfx into your friend's system and psu see if it works.
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