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After overclocking 6870 game looks lagy HELP!!

post #1 of 17
Thread Starter 
so i overclocked my sapphire 6870 to 940-1150..
the game looks damn lagy.. so i used driver sweeper to delete amd catalyst..
and i reinstalled catalyst i still have this lag issues..

i get on cod mw 2 over 100 more fps.. but game looks lagy...
i installed 11.5b driver.. it worked fine before

is voltage a problem? how do i unlock that?
on msi after burner there is no voltage unlock option
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post #2 of 17
1. Click on "settings" in the bottom right corner after MSI Afterburner is started up.

2. After clicking on "Settings" go down to "Safety properties" and select "Unlock Voltage Control" and "Unlock Voltage Monitoring".

If overclocking makes it unstable, consider not doing it LOL. Try upping voltage a bit though first.
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post #3 of 17
Thread Starter 
i did exactly what you said..
still can't unlock voltage..
btw i switched monitor to older smaller LCD monitor.. seems like game is running smother there..
15inch

the one i use is 20
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post #4 of 17
So you're not running crossfire? Is the game laggy when you remove the overclock?
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post #5 of 17
Thread Starter 
i sold gigabyte 6850
i'm running single card now..
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post #6 of 17
Quote:
Originally Posted by insyxion View Post
so i overclocked my sapphire 6870 to 940-1150..
the game looks damn lagy.. so i used driver sweeper to delete amd catalyst..
and i reinstalled catalyst i still have this lag issues..

i get on cod mw 2 over 100 more fps.. but game looks lagy...
i installed 11.5b driver.. it worked fine before

is voltage a problem? how do i unlock that?
on msi after burner there is no voltage unlock option
Turn on vsync?
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post #7 of 17
Your card is probably unstable because of a lack of voltage or too much heat. If temps are high, back down with your OC and if they seem to be ok, add some voltage. Do you see some artifacts? That would mean temps are too high.
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post #8 of 17
Thread Starter 
what is openGL triple buffering?
should i turn off amd optimized option?
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Intel® Core™ i5-760 Processor  GA-P55-US3L EVGA GeForce GTX 660 Ti CORSAIR Vengeance 8GB (2 x 4GB) 1600mhz 
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post #9 of 17
Dude, a lot of people are trying to help you... answer their questions :-/
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post #10 of 17
Thread Starter 
Thanks for help.. i solved the problem..
its back on stock speeds now.. runs smoth and nice..
msi afterburner.. there is still no option for voltage increase.. i did everything.. you guys said
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Intel® Core™ i5-760 Processor  GA-P55-US3L EVGA GeForce GTX 660 Ti CORSAIR Vengeance 8GB (2 x 4GB) 1600mhz 
Hard DriveHard DriveCoolingOS
Samsung 840 Series 250GB WD Caviar® Green™ 1000GB Cooler Master Hyper 212 EVO Windows 7 Ultimate 64bit 
MonitorPowerCaseMouse
Acer GD245HQ 120HZ Corsair CX600 Corsair Carbide Series® 200R Razer DeathAdder 3500 DPI Gaming Mouse 
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