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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 801

post #8001 of 38704
Quote:
Originally Posted by Alexsubri View Post

Thanks for that patch...I tried to flash my 7950 to an ASUS 7970 and it bricked :-( ...now I am stuck on BIOS 1 for my Sapphire 7950 ...oh well, I can now clock higher. Thanks for the patch once again!!!! biggrin.gif

Pull a backup of the BIOS from number 1, the one you have working, and flash that backup to number 2. I certainly wouldn't leave one BIOS on your card with a bad flash, you may need it one day.
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post #8002 of 38704
Quote:
Originally Posted by thrgk View Post

since the bios is totally unlocked for lightnings, can they hit 1500 mhz on the core?

Just because the voltage is unlocked doesn't necessarily meant that they will OC any better than any other 7970. It just means you have the ability to try out higher voltages and see if that helps. They will ultimately only OC to their limits regardless of how much voltage you throw at them...
post #8003 of 38704
Quote:
Originally Posted by navit View Post

Yes , on the second bios. The ocp is turned off, fully unlocked.

That's the LN2 bios right?
Quote:
Originally Posted by thrgk View Post

since the bios is totally unlocked for lightnings, can they hit 1500 mhz on the core?

I highly doubt that. It's the same silicon as reference golden cards, just cuz it has the lightning name doesn't make it like magic beans.
Quote:
Originally Posted by Majin SSJ Eric View Post

So wait, what's the bug when using DP over DVI? I have a 120Hz monitor so I have to use either dual link DVI or DP but the Lightnings only have single-link DVI. What issues am I going to have running with DP???

Zerocore does not work properly on systems using anything but DVI.
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post #8004 of 38704
Quote:
Originally Posted by tsm106 View Post

Zerocore does not work properly on systems using anything but DVI.

What does zerocore do and do I need it?
post #8005 of 38704
Quote:
Originally Posted by Majin SSJ Eric View Post

What does zerocore do and do I need it?

Its just more AMD low pwer savings nuttery. You can prevent your cards from entering zerocore powerstate by disabling ulps, which you'd probably do anyways using AB to overclock with. wink.gif
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post #8006 of 38704
Quote:
Originally Posted by tsm106 View Post

Its just more AMD low pwer savings nuttery. You can prevent your cards from entering zerocore powerstate by disabling ulps, which you'd probably do anyways using AB to overclock with. wink.gif

Do you do that in CCC? Sorry for the noob questions but I've never even see an AMD card before, much less used one...
post #8007 of 38704
Quote:
Originally Posted by Majin SSJ Eric View Post

Do you do that in CCC? Sorry for the noob questions but I've never even see an AMD card before, much less used one...

Well, first thing from the start is ya gotta make a choice to use AB or not? If you use AB, and for the record on Tahitti aka 7970s, I recommend AB, aka UOM method of overclock. Official overclocking, aka OM, aka Overdrive which is AMD's built in app, sucks right now. Anyways...

If you use AB, and I would and do, don't bother to ever open up Overdrive, or to enable it at all. After yer drivers are installed, before you hit the button to reboot disable ulps. Reboot. Then install AB, don't check ze box to start AB. Go abouts unlocking UOM in the config. You should know how to do that right? Now run AB, it will analyze your gpus and ask to reboot, so reboot and you are done with setup. Upon reboot unlock voltage control, then w/o doing anything else, save that default to profile #1, etc. Then create your 3D profiles as you please.
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post #8008 of 38704
I had ULPS ON for some reason. Turned it off and see if i get the problem Tonight.
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post #8009 of 38704
Quote:
Originally Posted by tsm106 View Post

That's the LN2 bios right?

Correct
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post #8010 of 38704
Have any of you guys downlclocked your HD7970 2D profile in AB?
I'm down to 1.0v, 922MHz core and 1374MHz memory. My idle temp har dropped from 40c to 36c. I like the lower temps. smile.gif

Any pointers on how low I can go? Can this damage my card in any way?
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