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Old 08-30-10, 07:54 PM   #3
Malichite
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Join Date: Oct 2003
Posts: 48
Default Re: GeForce GTX 285 and nvFlash will not change device ID?

I am not sure that is entirely true that the whole deviceID is unchangeable, but I do agree that the simple hack of dumping the ROM, changing the deviceID in nibitor, and reflashing doesn't work. I found a few cases when someone RMAd a GTX280 and instead got a GTX285 as a replacement, which disabled SLI enable due to different deviceIDs. Their final solution was to flash a GTX280 bios over the top of the GTX285 and it appears to have worked as it enabled SLI again. That is far more risky that I would attempt since there is a chance for issue with the timings and VRM section, but at least that suggest there is another place the deviceID is found in the bios if their attempt changed the deviceID from 05E3 (GTX285) to 05E1 (GTX280). I also found some info on a site trying to hack a GTX to a Quadro and they seem to suggest that the last digit of the deviceID was modifiable, but given 0x05E1 for the GeForce GTX 280 and 0x05FD for the Quadro FX 5800 nVidia protected itself from the soft strap methods to enable the professional version.
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