So yesterday I helped my friend install a new graphics card in his prebuilt Dell XPS and at first it went fine, we pulled out his old card (GT 635) and replaced it with a new GTX 970 as well as adding in a new PSU (630 watt). The PC booted and we got the proper drivers, he shut down the PC and now it gets stuck in a bootloop and doesn't post. We removed the new card and used the onboard graphics to uninstall the nvidia drivers and the PC still wouldn't post with the 970. We also tried putting in the old card (which does work) and reinstalling those drivers before putting in the 970, nothing. So today he put the old back in and says his mouse clicks don't register and some other things were going wrong. Help
Side note he has a 5400RPM 1Tb HDD that makes some awful noises but he said it always did that, and he was on Windows 7 but moved to Windows 10
Side note he has a 5400RPM 1Tb HDD that makes some awful noises but he said it always did that, and he was on Windows 7 but moved to Windows 10