Edit VGA BIOS on OEM card

[tcsenter]

I snagged a couple Radeon HD 7570 cards made for DELL, that shipped with select DELL systems. It's just a rebadged HD 6x70 "Turks" GPU with 480 SP, with lower clocks than 'retail' cards and probably (G)DDR3 instead of GDDR5.

It has a DELL (OEM) specific HW ID for DEV and SUBSYS, which is not included or supported in AMD's 'public release' Catalyst. And of course, DELL doesn't have a driver build for it newer than January 2013. Even the "new" driver package supposedly released August 2015 on DELL's server is actually just the older driver build from 2013 but with some modifications to the installer and manifests.

I know I can edit the driver INF but there are good reasons not to do it that way (driving signing check for boot devices on 64-bit versions of Windows and all that). I'd like to change the HW ID in the VGA ROM reported to the system, so that Windows and the AMD driver don't know any better.

Is this still possible on newer cards (e.g. Radeon HD 6000 and later)? I have no interest in overclocking, changing voltages, etc.

 

[naukkis]

Yes, I edited my hd6570's bios with radeon bios editor. I overclocked and changed power profiles but you also can change device id with it.

 

[tcsenter]

Yes, I edited my hd6570's bios with radeon bios editor. I overclocked and changed power profiles but you also can change device id with it.

Awesome, good to know. I *might* want to change frequencies to underclock it a little (so the cooling fan never needs to ramp to max), not overclock. Thanks!

 

[tcsenter]

Well I got the card installed (just received it today) and I was wrong. Even though it has OEM ID for DELL, it actually is supported by both recent AMD driver available from Windows Update (build date July 2015) but also the AMD Catalyst 'public' release. The AMD Catalyst does not have this particular SUBSYS string but it has an entry for the VEN and DEV (no subsys specified) and correctly reports HD 7570 or HD 7500 Series.

SWEET!