You don't need to reinstall the OS when you change your graphics card, particularly on Windows because of the PnP issue.
It just detects the new hardware when you start up and installs the generic one, then you install the one from the disk (which I recommend you don't lose sight of) or the one from the nVidia website.
As for the memory issue, well, the "memory remap" used to activate it regardless of the RAM installed during the assembly (they told me to do it that way and I got into the habit), so first make sure whether it's activated or not, in case it's not, you have to change it and reinstall. This function allows a 64-bit OS to access all the installed memory.
Hello!!!
In fact now that the memory has arrived, I've checked that the BIOS won't even let you use all 4GB without the MEMORY REMAP.
That said, the computer is a bullet, I'd dare to say that when it comes to booting up, it takes less time than the I5 hehe
Thanks for the recommendations and help
BEST REGARDS!!!
