While i cannot provide you with a BIOS valid for this exact board, i can point you to some tools to help with this:

Linux flashing tool flashrom adjusted for ATI: https://github.com/libv/flashrom/tree/ati
AtomBIOS disassembly tool: https://cgit.freedesktop.org/~mhopf/AtomDis/ in case you wish to take a closer look at what is flashed in there now.

parhelia512 wrote on 2021-07-31, 21:04:

Hi everybody, hope you are all fine ! […]
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Hi everybody, hope you are all fine !

I have this old card that is not working.
I would like to update the BIOS of this card as the installed BIOS was not the good one.
I've searched the web but can't find this exact model : ASUS Radeon HD 4650 Low Profile with (I think) 128 bit memory bus.

Here are some pictures of the card :

If someone has this card, it would be nice to make a BIOS dump !
Thanks for your help 😀

EDIT - First off, did you check the TechPowerUp BIOS library at https://www.techpowerup.com/vgabios/?architec … memSize=&since=

I have a couple NIB that seems like the card your looking for

If no-one else has a copy immediately to hand I can probably dump the BIOS with GPU-Z in the next few days, though I've no idea if this would be the "good one" or not - can you explain a bit more or quote 'good & bad' version numbers.

Hello and thank you for your answers !

THanks for the tools but right now, my EEPROM is empty and have tested some BIOSES from techpowerup with no success.
It looks like this card as ASYNT memory and I can't find a compatible bios.

PC Hoarder Patrol, yes, this is this card, same memory so a GPU-Z DUMP would be perfect ! Thank you so much ! 😀

Does GPU-Z dump from SPI, from the pci bar, or from 0xC:0000?

SPI is not likely, as i REed it from scratch a few years ago, and almost no-one picked up on it.

As for the PCI BAR: ATI, in its infinite wisdom, disabled reading from the PCI BAR through some magic register (that ATI of course did not tell us about), during ASICInit (the main initialization of ATOMBIOS -- which we got to bisect to find this). At least on the R500 and R600, since this card is likely an R(v)7xx it probably still does the same. We ran into this issue as restarting X is a common thing, while reloading a windows display driver without a reboot is notsocommon.

Dumping from the C segment means dumping from a RAM copy of the BIOS, and some VGA BIOSes are known to edit themselves in place.

If GPU-Z does the pci bar routine, then the easiest way is to boot this card as a secondary VGA device and to not initialize any drivers for it.

parhelia512 wrote on 2021-08-07, 11:05:

Hello and thank you for your answers ! […]
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Hello and thank you for your answers !

THanks for the tools but right now, my EEPROM is empty and have tested some BIOSES from techpowerup with no success.
It looks like this card as ASYNT memory and I can't find a compatible bios.

PC Hoarder Patrol, yes, this is this card, same memory so a GPU-Z DUMP would be perfect ! Thank you so much ! 😀

Had a bit of time today so thought I'd get it done - checked each card in case they were different BIOS revisions but no, both the same. Hope the attached helps

Thank you PC Hoarder Patrol, I will try this this afternoon !

Thanks for your help 😀

Hi all

Sorry for my late answer.
No luck...It seems the problem of my card is not BIOS related...The card isn't even recognized in the system properties when booting with another card.

Thanks for your precious help !