Rx 6600 Graphics Card not working in Acer TC 780. when I plug the rx 6600 it freezes, never boots

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MassMortar
MassMortar Member Posts: 3 New User
edited January 26 in Legacy Desktops

Hello! I recently added a 600 watt power supply and a few other upgrades to my Acer TC 780 (Non A Model). Every time I plug the rx 6600 in and power my pc on, it gets the acer screen, freezes, and never boots. I have no idea what to do at this point. I saw another post similar to this about some sort of bios update I need, but every time I try and update the bios I get error code 8743, and there's very little documentation about it online, leaving me stuck. If anyone has any idea what to do it'd be greatly appreciated!

[Edited the thread to add issue detail]

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