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5870 oc performance problem

post #1 of 7
Thread Starter 
So i was messing around a little with msi afterburner to do a small overclock. I have a 2gb sapphire 5870 and did a 875/1250 oc. i put the voltage to 1212 and ran ati tool for a while without a problem. But then i ran a 3dmark test and i scored less than half than i do with stock speeds. just a little confused if i did something wrong?

Also temp stayes under 60
post #2 of 7
Seems like it is unstable. Drop the clock a bit.
    
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Sandisk SSD Seagate Corsair H50 W7 Ult 
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Viewsonic VA1912wb Viewsonic VA912b K350 CM HAF 
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Logitech M570 
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post #3 of 7
I would assume that the OC failed and the card reverted back to 2D clocks.

edit- My 5870s want no part of any memory overclocks. That might be where you need to dial back.
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post #4 of 7
Thread Starter 
sweet thanks guys,
played with it all night and now have a stable 973/1300 and i never hit 70 degrees
post #5 of 7
Quote:
Originally Posted by rsilverx05 View Post
sweet thanks guys,
played with it all night and now have a stable 973/1300 and i never hit 70 degrees
Did you ever figure out what the hang up was?
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i5 2500k 4.7GHz 1.34v Asus P8Z77-V Pro Gigabyte Windforce 7950 8GB Crucial 1866 
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Crucial m4 128 GB Samsung BluRay Windows 7 64 Samsung S27A950D 
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My System
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i5 2500k 4.7GHz 1.34v Asus P8Z77-V Pro Gigabyte Windforce 7950 8GB Crucial 1866 
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post #6 of 7
Thread Starter 
ya i just didn't have the voltage high enough to sustain that overclock(im a noob), I bumped it up 1 step and that clock was fine but then i figured from there i might as well see how far i can get
post #7 of 7
Quote:
Originally Posted by rsilverx05 View Post
ya i just didn't have the voltage high enough to sustain that overclock(im a noob), I bumped it up 1 step and that clock was fine but then i figured from there i might as well see how far i can get
Try latest MSI Afterburner 2.2.0 Beta 8 and disable ULPS http://forums.guru3d.com/showthread.php?t=327291
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ケンジ
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