Experience that too with fur mark. Most of the time over clock fail, not enough voltage
If I bump it higher than no issues

Oh I see, if I increase the voltage higher maybe temps will be very high cause using stock cooler.

bump it up and see whether it still crashes
if not then its confirm you need more voltage

Also i notice memory overclocking gives more issue than speed clocking

Flashed my normal 7970 to 7970 GHz bios
so these are the best clocks in CCC overdrive w/o Afterburner.



* i don't have data for max clocks on stock bios though

Are you using the cc12.7 driver?
How is the new bios performance compared with the asus version

Wanted to flash this ghz bios but requires 12.7, for now skyrim has issues with 12.7beta

Dunno how to compare this bios against others but i'm more interested on the max clocks it could yield which i'd try it later.

It's 12.7 beta but i dont play Skyrim anymore since the enemies keep beating me without reason lol.

i am bored so playing skyrim

keep us updated on which is a better bios

vddc at 1.3.. Tats pretty high isn't it?
AB not needed already

This post has been edited by jeff88rey: Jul 21 2012, 12:14 PM

yeah 1.326v is pretty high for such clocks.
It fluctuates randomly on every run.
sometimes i got lower VDDC down to 1.217v on load sometimes shot up to 1.326v.
that's how the LLC of the 7970 GHz bios works. Huge vdrop.

Aduh... Only can achieve 1159/ 1375/ 1.174v... Increasing the memory will reduce 3Dmark 11 score... Will flash again to Ghz and see if any improvement... Hehe...

The GHz bios maxed out at 1300/1800, yeah an 50MHz improvement on mem OC but 42Mhz decrement on core clock.


temp wise dunno.

Hi guys... I think my HD 7970 first bios is bricked. Unable to boot and VGA LED keep on blinking. Second bios no problem. At firs, no problem in flashing however after my fourth attempt with Asus bios, the bios seems unsuccessful. Then, there the story goes... Help me guys...

easy bro.. find a working second card or integrated graphics to flash the bad bios

btw, having issue flashing asus bios too..

How to use the igpu? Now googling blind flashing but hard to find yo...

boot it up without gc first.. after set it in bios then plug in gc..

blind flash needs correct command to do it.. u nid to create an autoexec.bat file.. try refer to bjorn3d.com

Any link for the guid? I did read bjorn3d.com but I don't get it... Damn...

hmm.. u want blind flash or u hav igpu?

1. u must create a bootable usb drive first..
2. if u wan u can paste the rest of the win98 files into it..
3. paste the atiflash n bios into it

Done! Hehe... It's not that hard. Reading the instruction is the hardest part! I was shock to see the long instruction, but surprise how easy it is. Now I feel more secure to brick any gpu.

tats gud to hear! i bricked mine before too
damn panic the first time it was actually so easy

btw, does asus use custom pcb? i wonder why it doesnt work

This post has been edited by jeff88rey: Jul 23 2012, 10:49 PM

According to OCN senior member, he pm me this:

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Added on July 23, 2012, 10:58 pmMeh! I didn't save my old bios. Now with bios from net, I can't flash to Ghz. Luckily owikh84 attached the bios at AMD thread. And it work. Will doing some benchies now.

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Added on July 24, 2012, 12:09 amWith Ghz bios, can push up to 1205/ 1500/ 1162mv and achieve P9434 for 3dMark11. CPU at stock setting. Temp never reach 80c with fan speed 50%. This flashing really benefit me. Enough for tonight, gnite!

P/s: Lazy for screenshot as I online from my lappy. Will attach screenie for final stable oc'ing.

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Added on July 24, 2012, 12:24 amHow much is the voltage? I can't see

This post has been edited by diaBoliQu3: Jul 24 2012, 12:24 AM