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New Bios update for gigabyte HD7950 ! - Page 34

post #331 of 1324
To much voltage you got there... I don't think it's very wise to push it so hard. It doesn't worth it...
post #332 of 1324
Quote:
Originally Posted by tazmania View Post

okay this is annoying me now. i created a bootable usb stick, put atiflash on it with the f43 bios. i boot up and use atiflash -f -p 0 R795W3GD.F43 after i switch to my busted bios and i can see on screen that i need to reboot. i then reboot and my pc just comes up blank and i can't see anything. i keep switching back to my backup bios but i want to fix the broken one before flashing f43

any ideas?

edit: ok so i flashed the stock f42 back onto the side that wasn't working and now i have two that are on f42 no problem. the problem is that whenever i flash f43 the pc doesn't even post. it's just a black screen. any ideas?

anyone?
post #333 of 1324
My card didn't like f43...
    
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post #334 of 1324
I think it too, but I have 74°C in max burn load, so its around 10°C lower than stock 7970 which can reach 87 in burn. Maybe I will let to underclock but this settings are rock stable in all games, except NFS most wanted 2012, but I think its due to game. had anyone problem with NFS MW 2012, that locks screen few seconds after loading the car. But the same problem still at default clocks :-(
Not original game ;-)

BIOS FZ1
post #335 of 1324
Quote:
Originally Posted by Belkov View Post

To much voltage you got there... I don't think it's very wise to push it so hard. It doesn't worth it...

Those cards that are shipped with F42, F2 or lower BIOSes can go up to 1381mV using the stock BIOS (only in Sapphire Trixx). MSI Afterburner doesn't allow more than 1300mV.
With BIOS F42/ 43 even at 1381mV the card reach about 69 C on the highest VRM temperature (Fan at 75% so go figure how loud it is). I know that voltage is ultra high but still the VRM temperatures are pretty acceptable on the other hand tongue.gif.
Cards that shipped with 1.250mV BIOS (FZ1, F3) most of the time are voltage locked.
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post #336 of 1324
Is F43 voltage locked?
And what is the best way to flash a bios
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post #337 of 1324
Quote:
Originally Posted by Pebruska View Post

Is F43 voltage locked?
And what is the best way to flash a bios

No. It support overvolting but it is mainly dependent on your card if it hard locked or not.
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post #338 of 1324
Quote:
Originally Posted by HeadlessKnight View Post

No. It support overvolting but it is mainly dependent on your card if it hard locked or not.
Ok, i have 015.029.000.003.000000 (FZ1?) bios right now and the card gets really hot because of the 1.25 stock voltage
and i don't want to crank fan speeds up because i want to keep it as quite as possible.
What do i do? flash F43 for lower voltage?
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post #339 of 1324
Quote:
Originally Posted by Pebruska View Post

Ok, i have 015.029.000.003.000000 (FZ1?) bios right now and the card gets really hot because of the 1.25 stock voltage
and i don't want to crank fan speeds up because i want to keep it as quite as possible.
What do i do? flash F43 for lower voltage?

Yes 015.029.000.003.000000 is FZ1.
F43 will make your card run at lower voltage but it will run at 900 MHz instead of 1 GHz. (you will lose around 8-10% performance)
And probably if you tried 1 GHz on 1093mV or 1031mV your card most of the time might not be able to cut it at those low volts, so you will have to find your OC manually.
I am not sure if F43 will work with your card but mostly it will...
Because F42, F43 & FZ1 all work flawlessly for me, but I have to say my card is shipped with F42 BIOS.
Also what are your temperatures on the core & vrm with FZ1?
Edited by HeadlessKnight - 2/2/13 at 6:44am
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post #340 of 1324
Yes, with f43 you'll have 900 MHz stock clock, but you can easily increase the core clock to 1000 with CCC even with stock voltage.

By the way King, you were right - i have increased stability on OC-ing with 13.2 beta4 drivers.
Before i could stabilized 1100/1500MHz with 1.2V. Now i can stabilized 1100/1500MHz with 1.175V. I'm with F43 bios version.
Edited by Belkov - 2/2/13 at 11:57am
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