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MSI 7870 overclocking problem

post #1 of 10
Thread Starter 
Hey!

I have an MSI 7870 TFIII with 1050/1200 stock, and when I overclock to 1100/1250 I'm on my games, playing for 10 minutes and the LCD have no signal. I have maximum voltage supported by MSI Afterburner (1.3v)

But if I overclock to 1250/1400 the screen have signal but the AMD Drives crashes.

It only happens with games/3d mark. With MSI Kombustor I can run all tests for 1h without problems

How to fix that?

Thanks



PS: My LCD is connected via VGA with adapter DVI-I -> VGA
post #2 of 10
Same thing happens to me, I can run Furmark perfectly fine at 1250/1450 and 1.3V, but 3dmark 11 causes the driver to crash. Could just be driver issues, but the card might just need more voltage to be completely stable at that speed. Wait till we get a few more driver versions.
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post #3 of 10
Thread Starter 
Quote:
Originally Posted by General Disarray View Post

Same thing happens to me, I can run Furmark perfectly fine at 1250/1450 and 1.3V, but 3dmark 11 causes the driver to crash. Could just be driver issues, but the card might just need more voltage to be completely stable at that speed. Wait till we get a few more driver versions.

But with low overclock my screen have no signal and I don't know why :S

can it be the adapter dvi-i to vga is causing that problem? The adapter I have bought, mine card didn't come with one
post #4 of 10
Reborn624, dont use too much volt smile.gif at 1100/1250 it should be done with default voltage. Try it wink.gif
I guess your card will do fine also at 1150 - 1200mhz with default voltage.
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post #5 of 10
Kumbustor is crap for stability testing IMO. Test a game instead.
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post #6 of 10
Thread Starter 
Quote:
Originally Posted by Bartouille View Post

Kumbustor is crap for stability testing IMO. Test a game instead.

Yap tongue.gif I used FurMark and 3D mark 11 to test
Quote:
Originally Posted by neoroy View Post

Reborn624, dont use too much volt smile.gif at 1100/1250 it should be done with default voltage. Try it wink.gif
I guess your card will do fine also at 1150 - 1200mhz with default voltage.

Yes I solved the problem tongue.gif stock voltage I overclocked to 1175/1450 without any problems.
post #7 of 10
thumb.gif
post #8 of 10
Quote:
Originally Posted by reborn624 View Post

Yap tongue.gif I used FurMark and 3D mark 11 to test
Yes I solved the problem tongue.gif stock voltage I overclocked to 1175/1450 without any problems.

See that?? now you are right on your track mate thumb.gif
MSI twinfrozer edition is good for overclocking wink.gif

@Bartoulle, yes I agree with you thumb.gif I use Crysis2 with max setting as stability testing for my OC'ed card, just run it 1-2hours for a week if no problem than its ok to set for daily OC smile.gif Also I use Metro 2033 for testing stability. PC Game is the real stability testing.
SkynetX
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SkynetX
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Seagate Barracuda HDD 1TB SATA3 SAMSUNG Bluray Combo SH-B123L Cooler Master Hyper 212X Turbo Windows 10 Pro 64bit 
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post #9 of 10
Thread Starter 
Quote:
Originally Posted by neoroy View Post

See that?? now you are right on your track mate thumb.gif
MSI twinfrozer edition is good for overclocking wink.gif
@Bartoulle, yes I agree with you thumb.gif I use Crysis2 with max setting as stability testing for my OC'ed card, just run it 1-2hours for a week if no problem than its ok to set for daily OC smile.gif Also I use Metro 2033 for testing stability. PC Game is the real stability testing.

Yap smile.gif

Thanks thumb.gifthumb.gif
post #10 of 10
Glad to share with others smile.gif
SkynetX
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Hard DriveOptical DriveCoolingOS
Seagate Barracuda HDD 1TB SATA3 SAMSUNG Bluray Combo SH-B123L Cooler Master Hyper 212X Turbo Windows 10 Pro 64bit 
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SkynetX
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Hard DriveOptical DriveCoolingOS
Seagate Barracuda HDD 1TB SATA3 SAMSUNG Bluray Combo SH-B123L Cooler Master Hyper 212X Turbo Windows 10 Pro 64bit 
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