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7850 > 7870 BIOS Flashed!!

oh absolutely and I do agree with you

Nobody had tried it, nobody REALLY knew what would happen.

We ALL thought the card would end up bricked. Turns out that wasn't the case. The card still worked, ok so it wasn't a 7870 but it still worked.

Now we know, point proved, time to move on :D

Risk was high although I had put good measures in place to fall back to original rom, but so what......gotta do these things else nobody finds out anything.

What else can I break lol
 
you wanna be carefull there isnt different timings for the 7870 ram,ive read on the 6950/6970 that there were and it was screwing up the graphic cards memory ect,just a thought
 
Eeeeeethan said:
Care to share?

I ended up having to RMA it to the manufacturer.
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The first thing you need to do it save the original bios and find out where the ati adapter is in your system

IIRC it's atiflash -i

Then you create a USB bootable drive and put on it atiflash, the original bios, your new bios. The create autoexec.bat which the command atiflash -p -f 0 original.rom

Set your bios boot to only boot from USB stick

Boot from the USB and your card should be flashed to the original rom. Do this a couple of times over to make sure it works. Then stick in a second graphics card and do atiflash -i again

see if the location moves

if all goes well, update your bios. If it bricks all you need to do it reboot which will automatically flash it back to stock. The system will boot find with no bios beeps due to the second card being found.

Just make sure the adapter location matches the command in autoexec if it changes due to running a second card

The main thing is to test as much as you can before flashing. Try to guess what you need to do if your card gets bricked.

When I did the 7850 > 7870 I had TFT1 on 7850 and TFT2 on iGPU so I could at least see and access the PC at all times
 
Eeeeeethan said:
I tried that, my PC wouldn't post with the GPU in :(
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Yes, you need two cards installed as the system at that point thinks the card is dead. If you did have two cards in, not in crossfire just standalone you might need to swap PCI -E slots over or install a PCI card

always test the system with two cards prior to doing anything risky.....although if you were just doing a bios update of the same type as I think you were most people wouldn't have bothered. The dead card needs to be treated as secondary in the bios
 
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glen8 said:
Yes, you need two cards installed as the system at that point thinks the card is dead. If you did have two cards in, not in crossfire just standalone you might need to swap PCI -E slots over or install a PCI card

always test the system with two cards prior to doing anything risky.....although if you were just doing a bios update of the same type as I think you were most people wouldn't have bothered.
Click to expand...
Yes I know I had a spare GT230 which I knew worked. The machine wouldn't post with the GPU in.
 
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