Powercolor hd3650 agp device id change?

west503 · Apr 22, 2010, 03:53 PM

I'm encountering some problem using RBE to change the device id from 9598 to 9596. Most manufacturers use 9596 to designate the AGP version of this card while my card (Powercolor) uses the PCIe id of 9598. I need the 9596 id to use certain driver files in a Mac install. My method to this point has been to use a backup stock bios taken from my card and using RBE to do a hash dump and changing 98 to 96 in both id locations, save the bios and flash back to my card. Everything goes fine until the reboot with no display. I can blind flash the card back to original and it works. I'm just not certain if I'm doing everything I need to change this id and make it work. Any ideas?

Yukikaze · Apr 22, 2010, 04:04 PM

Quote:

Originally Posted by west503

I'm encountering some problem using RBE to change the device id from 9598 to 9596. Most manufacturers use 9596 to designate the AGP version of this card while my card (Powercolor) uses the PCIe id of 9598. I need the 9596 id to use certain driver files in a Mac install. My method to this point has been to use a backup stock bios taken from my card and using RBE to do a hash dump and changing 98 to 96 in both id locations, save the bios and flash back to my card. Everything goes fine until the reboot with no display. I can blind flash the card back to original and it works. I'm just not certain if I'm doing everything I need to change this id and make it work. Any ideas?

The BIOS is probably protected by a checksum value somewhere in the image. When you change the ID, the checksum no longer matches and the device does not initialize properly.

west503 · Apr 22, 2010, 04:56 PM

Makes sense...
As an aside, I've also tried to flash with other manufacturers bios with the same result. The problem with this may be that I'm being hampered by a 64 bit card while the 3650 bios's I've been able to find have been 128 bit.

Apr 22, 2010, 03:53 PM	#1
west503 Join Date: Apr 2010 Posts: 2 (0.00/day) Thanks: 0 Thanked 0 Times in 0 Posts	Powercolor hd3650 agp device id change? I'm encountering some problem using RBE to change the device id from 9598 to 9596. Most manufacturers use 9596 to designate the AGP version of this card while my card (Powercolor) uses the PCIe id of 9598. I need the 9596 id to use certain driver files in a Mac install. My method to this point has been to use a backup stock bios taken from my card and using RBE to do a hash dump and changing 98 to 96 in both id locations, save the bios and flash back to my card. Everything goes fine until the reboot with no display. I can blind flash the card back to original and it works. I'm just not certain if I'm doing everything I need to change this id and make it work. Any ideas?

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Apr 22, 2010, 04:56 PM	#3
west503 Join Date: Apr 2010 Posts: 2 (0.00/day) Thanks: 0 Thanked 0 Times in 0 Posts	Makes sense... As an aside, I've also tried to flash with other manufacturers bios with the same result. The problem with this may be that I'm being hampered by a 64 bit card while the 3650 bios's I've been able to find have been 128 bit.

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