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GTX 480 overclocking help

post #1 of 9
Thread Starter 
I cant seem to hit 900/1800 but im not sure why. If i try and hit 870 and run furmark the Nvidia driver crashes but recovers by windows. Any idea/ help?

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post #2 of 9
Thread Starter 
anyone? im clueless when it comes to overclocking a gpu and voltages and such.
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post #3 of 9
Are you under water? If you are, jump the volts to 1138 and try 900 core, if you still can't hit it, flash an over voltage BIOs and give it more, but only if you're on water.
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post #4 of 9
You don't have enough voltage for that OC if it's crashing Furmark.

you're only at 1075, max it out and test again.
If it still fails, your card cannot do 900MHz with your bios.
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post #5 of 9
Thread Starter 
i try and move my voltage up and it goes straight back to 1075, and yes its under water.
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post #6 of 9
What kind of rad/fans? And also, in afterburner do you have the voltage enabled? And the newest version of afterburner? My 480 at 900 core takes 1163 volts, and maxes out at 45c folding and about 57c in furmark. I have a 480 rad with 4 scythe kaze 3000's.
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post #7 of 9
Thread Starter 
highest my volts go is 1138 and when i even do that and set it to 900, display driver crashes and recovers

and its a full EK block, with a 360rad with 2000 rpm kaze's on a fan controller, cpu (heat killer), 120m rad, 480, back to res.
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post #8 of 9
Sounds like your core simply can't push 900MHz.
Shoot a little lower, I guess. Keep the volts at 1138. We already know your 870MHz clock wasn't even stable with only 1075.
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post #9 of 9
900 is rare on a 480.
I had 3 and none would do it with any sort of stability, matter of fact all 3 would top out around 875.

Have you tried with default mem speeds?
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Mighty-iTX
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mATX
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Crucial M4 256 Glacer 240L W8.1 K272HUL 
KeyboardPowerCaseMouse
Saitek Seasonic X-650 Prodigy MX518 
CPUMotherboardGraphicsGraphics
4770K/45/43 Maximus VI Extreme R290X R290X 
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Samsung Crucial M4 64GB RAIDR LSSWM 
CoolingOSMonitorKeyboard
Cooler Master Glacer 7 Ultimate 64 SyncMaster Eclipse 
PowerCaseMouseMouse Pad
XFX 1050 BE 600T Silver MX518 Desk 
CPUMotherboardGraphicsRAM
i5-4330 Z87 Gryphon GTX690 G.Skill RipJawsX 
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