This is probably going to sound paranoid, but the last time I changed out one Nvidia card for another in the same system (X58 mobo, GTX 670 --> GTX 770), I inadvertently fried my motherboard (though the GPU cards were none the worse for wear, oddly, and worked in other systems fine.) Prior to that I've never had a single issue changing GPUs, but all it takes is once... First the easy: Should I wipe the GPU drivers first from Windows 10 Pro (even though both GPUs are Nvidia?) Is there a recommendation on a specific tool to wipe the drivers, or is it the same as a clean install of the latest Nvidia driver package? Should I disconnect the PSU and remove the motherboard entirely first? (I heard a very small electrical "click" last time I first seated the new card when I burnt out my old X58 mobo, though the PSU was turned off and its power cord had been removed. No power cords were attached to either card when this happened). What are the "best practices" (most reliable for positive outcome) in removing one video card from the PCIe x16 slot and replacing it with another (of the same make, if that even matters)? Apologies for asking such basic stuff. I've been putting together PCs since 1999 and I thought I knew WTF I was doing by now. Thanks for any advice!