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issue flashing 6950 to 6970, can re-flash original BIOS

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issue flashing 6950 to 6970, can't re-flash original BIOS

I didn't notice the instruction about using RBE for 1GB models.

I used winflash to back up the original bios first though.
Now when I try to reapply the original bios it aborts with a SUB-system ID mismatch error.
How do I get around this?
Lucky the card has the dual BIOS, because it doesn't boot any more with BIOS #1!

Thanks,

--Gully
 
Last edited:

de.das.dude

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why use winflash to backup when you can do it much much more easily with GPU-Z?

you might want try the dos command mode. if i am not wrong, winflash is not a great tool.
 
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Hi

Maybe this

enable; file extentions enabled in Windows\Control Panel\All Control Panel Items
Example:
Hide extentions.jpg


Note: depending on the vbios image backup; file extention may require changing from .bin to .rom

*Never flash the vga card while in switch position #2* remember to change the switch position back to #1 before flashing
Example:
- Boot the system to a dos prompt with the switch in position #2 [this will enable the monitor]
-change switch to position #1 while system is running and monitor is detected
Check the position of the vbios
-type at the dos prompt; atiflash -ai 0 [this will look for vga vbios info]
Flash
-Type at the dos prompt; atiflash -f -p 0 [#name of bios#].rom

atb (all the best)

Law-II
 
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Hi

Maybe this

enable; file extentions enabled in Windows\Control Panel\All Control Panel Items
Example:
View attachment 51762


Note: depending on the vbios image backup; file extention may require changing from .bin to .rom

*Never flash the vga card while in switch position #2* remember to change the switch position back to #1 before flashing
Example:
- Boot the system to a dos prompt with the switch in position #2 [this will enable the monitor]
-change switch to position #1 while system is running and monitor is detected
Check the position of the vbios
[B-type at the dos prompt; atiflash -ai 0 [/B] [this will look for vga vbios info]
Flash
-Type at the dos prompt; atiflash -f -p 0 [#name of bios#].rom

atb (all the best)

Law-II

I got to the red row and atiwinflash told me "this program can't be run in DOS mode"
I used the version linked from this page
 
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OK, I found the older versions of Winflash and got the bios restored. It helped that I already had a bootable win98 flash drive sitting around from another adventure.

Thanks Law-II!

Now on to try RBE!
 
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Flashing the 6950 to 6970 is a bad idea. I believe the VRM's are not the same as well as the board. Many have f'd up their card.
 
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I don't see the point of risking bricking the card. I have flashed mine and I don't think the gains are worth the risk. I just overclock my cards to 6970 specs.
 
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