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New Bios update for gigabyte HD7950 ! - Page 76

post #751 of 1324
No probs, thankyou for trying, it was much appreciated, as i said, im not good with hackin bios's lol.

As for games, im taking a FPS hit anyway, because my current mobo has only pcie v1.1, i'm gonna put in my other mobo sometime soon & then i will atleast move upto pcie v2.0, dunno if it will make much difference with my fps tho.
post #752 of 1324
PCIe speed doesn't matter much if at all. With 3GB vram, you rarely need to use system ram for textures, etc.

http://forums.anandtech.com/showthread.php?t=2219975

Thats a tri fire too.. more stress on the PCIe bus you would think, but 1.1 did great!
post #753 of 1324
Quote:
Originally Posted by robnitro View Post

PCIe speed doesn't matter much if at all. With 3GB vram, you rarely need to use system ram for textures, etc.

http://forums.anandtech.com/showthread.php?t=2219975

Thats a tri fire too.. more stress on the PCIe bus you would think, but 1.1 did great!

Cool, i see what you mean lol.

Well thanks again for your help, im gonna continue to closely watch this thread & see what unfolds smile.gif
post #754 of 1324
Anybody using GV-R795WF3-3GD.FT0 Bios? Not sure which bios to flash to my cards to get voltage control?

Got these cards for £150 each after selling the game codes thumb.gifbiggrin.gif:)

I love AMD lol.
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post #755 of 1324
These 7950's are awesome, just flashed mine to the HD 7970 Ghz edition bios. They absolutely fly now at stock speeds 1050/1500. scored 15,000 in 3DMark11 stock speed. £150 each, best bang for buck ever surely?

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post #756 of 1324
Hi,
What bios did your card come with? fx fy fz or f43?

Which 7970 bios you used? Does hdmi out work?
post #757 of 1324
Quote:
Originally Posted by robnitro View Post

Hi,
What bios did your card come with? fx fy fz or f43?

Which 7970 bios you used? Does hdmi out work?

My card with FT0 bios, it's not on the Giga site.. The only bios flash that worked for me was the HIS 7970 with same device ID and the 7970 Ghz bios which I am sticking with because it turned my cards into beasts biggrin.gif.

Check this thread http://www.overclock.net/t/1394564/radeon-hd-7950-flashed-to-radeon-hd-7970-ghz-edition
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post #758 of 1324
Ah ok,
There was a thread in another forums about the HIS 7970 bios with device ID 679a (same as out 7950), but it is really just a 7950 bios. Atiflash said it was a tahiti pro (7950) NOT tahiti XT.
Even the picture is wrong, showing 7950 LOL:
http://www.techpowerup.com/vgabios/126754/his-hd7970-3072-120816.html

Even when I look at the file with a hex editor, though the page says 1375 ram speed (7970 speed), it's actually 1250 in the bios (48 e8 01 in reverse hex)



The real 7970 bioses either don't work for my 6 +6 card, or break hdmi output.
Edited by robnitro - 5/26/13 at 9:37am
post #759 of 1324
Quote:
Originally Posted by robnitro View Post


The real 7970 bioses either don't work for my 6 +6 card, or break hdmi output.

Yeah my card is 6pin + 8pin, my cards run so much better with the Ghz bios, makes you wander why they don't ship the 7950's with better bioses, they are using less power and generating less heat at higher clocks.. The stock bios was pretty pants in comparison lol. I'll just stick with Ghz until I sell the cards..

Can reach 1125mhz / 1550 without any voltage increase. On the stock bios I was limited to 1000 / 1350 lol.
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post #760 of 1324
Here's my latest tune. I have 76% asic, 1.09 v was stable until 1030. 1.18v stable until 1100 . Both full load occt benches.

So here's the latest iteration of a boost fz1 bios which works well on the 6+6 version 1 cards that aren't locked, including the ones that came with f43, f21, f2. They will break hdmi on the newer v2 cards. The newer card bioses break hdmi on 6+6 cards, 2 different versions.

Normal Boost is horrid due to 1.25v and state 2 not really in use. This is optimized smile.gif

Best Powertune setting for this bios is around 5-7%. If you go higher it doesn't add fps, but uses way more power.


Max clocks in CCC, 1200 core, 1675 memory.

1) 1.188v boost state- stock 1000 mhz. Use CCC to set it where you find stable. I use 1100 mhz with 1660 mem.
You can't change the voltage in MSI AB, but I found this to be a good voltage that doesn't run too hot, nor is too low to get a good OC

2) 1.081v for state 2... 995 mhz. If you want test your own card with 1000 mhz or so at 1.08v to make sure its stable before using this one, because you need to hex edit to change this speed/voltage.

3) Dual mon set up to always use 0.95v even if you change ram speed. Before if you change ram speed past 1251mhz- it would use 3d voltage. (because of a stupid table that changes core voltage based on memory clocks- doesn't make sense and sucks up juice esp in multimon!)

4) UVD/low power 3d, is now 750 mhz with 750 mem 0.95v. Core clock doesn't change power use, it's the voltage- when watching uvd youtube or dxva hw accel - 500 and 750 used same power. Mem is set lower, saves a bit of power compared to 1250.

Anytime PT drops clocks below 995 mhz, it uses lower voltage and much less power to keep fps up in high demanding games. Otherwise PT just drops clocks but keeps it at the max 3d voltage...
example:
occt 360x360 shader 5 error test dx11 1300 fps target
Regular bios @ 1.188v= 22 amps (pt averaging around 970 mhz)
This bios with the 2 states = 17 amps (pt averaging around 970 mhz).

G79STG2.zip 41k .zip file
Edited by robnitro - 5/26/13 at 4:33pm
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