First, plugged in the new card - BSOD. Started up in safe mode, updated the driver from MX420 (Microsoft) to the NVidia driver from 162.62.
Computer boots, and MX420 is the primary. Can't find the FX3450 anywhere. Device manager shows an exclamation mark, device was unable to start.
Installed 162.67 drivers with both cards in.. nothing.
I "uninstalled" the MX420 from Control Panel... rebooted... the FX was now driving the main display.. yet the MX420 worked as a second monitor, but in control panel all it has was MX420..
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