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Radeon HD 5750 recognized as Radeon R9 280X after reformat

Question asked by treasurecat on Sep 4, 2016
Latest reply on Sep 12, 2016 by kingfish

I recently reformatted my desktop because it had been a couple years and was running poorly. I was running Windows 7 HP x64 previously and installed it again afterward, so it's the same OS as I was using before the format.


Since the reformat, Windows doesn't detect my ATI Radeon HD 5750. It defaults to a Standard VGA Grahpics Adaptor. I don't know if the VGA is coming from my motherboard (ASUS M4A78LT-M) or the graphics card itself, but I think it's the card, since I can use GPU-Z to identify it (see below).


Every attempt to identify my card returns the same wrong result. Windows Update, Catalyst, AMD autodetect, and GPU-Z all wrongly identify my card as a Radeon R9 280x (specifically, in the case of GPU-Z, as the XFX Double D R9 280X). Because ATI only allows drivers to be installed via the autodetect utility in Catalyst, I've been unable to find and manually install 5750 drivers. Allowing the system to install the 280x drivers predictably causes Windows to lock up on reboot and requires a trip to safe mode to clean them back out.


I've gone through and installed the most current drivers for my motherboard. I'm also aware that my card is no longer supported by ATI, and have been using the Non-GCN Legacy version of Catalyst (though I've also tried the most current Catalyst as well as older versions from 2010 and 2011). My video card was working fine before I reformatted (running Overwatch, for example) and I haven't so much as opened my case, so it's not a question of having my hardware connected/seated/powered correctly. It also seems very unlikely that either the card or my mobo would just happen to fail alongside a reformat.


I'm at my wits end on this and don't know what else to try. Any help would be greatly appreciated. Thanks!