Urgently need help, Flashed HD6950 both bios, won't boot.

[SanderValk]

Hi! I accidentally flashed both of my bios on my club 3d HD 6950 (2gb)

How can i restore the original bios? I have a spare card in my primary pci-e right now, and my 6950 in my second, i understand that i have to flash the original bios back now somehow, how do i do it in cmd?

edit: i did atiwinflash -f -p 1 {BIOS BINARY FILE} instead of -f -p 0 {BIOS BINARY FILE} but it says i have no valid adapter, although my card is in the slot and making lots of noise at that.
also, if i have the card on it's bios no. 1, my pc blue screens on bootup, then boots and if i have it on the bios no. 2, it will be stuck at the windows loading logo

[Law-II]

Hi

You require a backup of the original or original bios for Club HD 6950

Look here if you do not have a backup there maybe one in the vga bios database- http://www.techpowerup.com/vgabios/i...ace=&memSize=0

ATI Winflash CMD command line flash from backup

*If you are able to access windows with a spare vga card or onboard vga; Uninstall any AMD drivers for the vga card

Download and install latest version of ATI Winflash from here - http://www.techpowerup.com/downloads..._2.0.1.18.html

Place barts.bin in the ati winflash main directory

In windows task bar goto
- Click Start Button
- Type "cmd"
- Right click the entry and select "Run as Administrator"
- Black command prompt windows opens
- Type "cd c:\winflash"
- Type "atiwinflash -unlockrom 0" <-- the 0 means first adapter, try 1 if you have booted to the PCI card
- Type "atiwinflash -f -p 0 barts.bin" OR again 1 as the case may be
- It should complete the flashing process with a message saying something with "verified"
Note: *ensure all non essential background tasks are closed while undertaking this procedure within the windows enviroment

Source; Tatty_One - here

How to recover from a bad HD 6950 flash

*If you are able to access windows with a spare vga card or onboard vga; Uninstall any AMD drivers for the vga card

Try this first - look here under the heading *What if something goes wrong?*

http://www.techpowerup.com/articles/...ng/vidcard/159

*If the above dose not have the desired effect goto Next

Next

*If you are able to access windows with a spare vga card or onboard vga; Uninstall any AMD drivers for the vga card

go here http://files.extremeoverclocking.com/browse.php?c=21

grab- HP USB Disk Storage Format Tool - v2.1.8 & Windows 98 System Files

click Primary Download unzip the files to a folder on your HDD; make sure your USB Memory stick is attached to your PC; open HP USB Disk

Storage Format Tool v2.1.8 ; select Creat a DOS startup disk/ select: using DOS system files located at: (these are the files you have just downloaded): browse to the files in win98boot; then start the process.

Download latest version of ATIFlash here - http://www.techpowerup.com/downloads...sh%203.99.html

Add atiflash and 6950 bios.bin to the usb flash drives root directory

*Select position #1 on the vga PCB switchable vbios before flashing

Set the motherboard bios to boot from usb *press F8 during boot; select from boot menu if option is avalable; this should boot to a win98 dos prompt

Type at the dos prompt - dir to veiw the content of the flash drive

Type at the dos prompt; atiflash -i command at 1 to see if adapter is at this address and is recognised

Type at the dos prompt; atiflash -unlockrom 0 to unlock the gpu in adapter 0 [Note: 0 is the primary card PCIe slot one & 1 is the secondary PCIe slot two][*may be required]

Type at the dos prompt; atiflash -f -p 0 [#name of bios#].bin [Note: 0 is the primary card PCIe slot one & 1 is the secondary PCIe slot two]

reboot once finished and remove the flash drive

reinstall AMD Catalyst Drivers

atb (all the best)

Law-II

[GreiverBlade]

Law-II allways helping, he solved my problem too http://www.techpowerup.com/forums/sh...d.php?t=176001 AtiWinFlash sometime doesnt work correctly while Atiflash under a dos prompt (boot) works perfectly (i used the bios in the bios database of tpu)

since its exactly the same card i hope it will work too.

[Tatty_One]

In several hundred flashes I have never had Winflash fail me, maybe I have been lucky! Winflash is by far your easiest solution here though, just select the appropriate adapter (0 or 1) where the 6950 is and you should be sorted surely?

[wofy]

If you still can't detect the adapter, there used to be another method. When I had an RV770(HD 4870) card I managed to brick it by changing its model number. Using a dos USB drive, atiflash and an autoexec.bat(with the flash parameters) while shorting the vbios chip allowed a flash. You would have had to short the two power pins on opposite sides and let go of them once the USB drive was being read. I can't remember if this still applies to Cayman tho.

Just something to look into if you can't fix it in the 'conventional' way.

[SanderValk]

Ok so, i think i have it fixed now, im using the card atm, but i noticed that the gpu clock and memory are very different from the defaults, is that normal?

[brandonwh64]

Originally Posted by SanderValk

Ok so, i think i have it fixed now, im using the card atm, but i noticed that the gpu clack and memory are very different from the defaults, is that normal?

http://gpuz.techpowerup.com/13/02/05/9ud.png

Yes it will be if you did not use your original Bios.

[SanderValk]

Im trying to restore the original bios, i thought i had accomplished this just now when i got it to boot up, i installed the latest drivers and yet it doesn't let me play games or even enable Aero effects, saying that i need to update drivers

edit: Im now certain that i have the right bios on, i've checked it in every possible way, now there's just the problem with windows..

edit2: i think i got it working fine now, the only problem now is the temperatures, the gpu gets a bit hotter than it used to and makes more noise, why?