Recently my computer has started crashing applications (mostly games) when loading into them and sometimes giving me a BSOD with multiple error codes such as "Memory Management", "Page_Fault_In_Nonpaged_Area" and "pfn_List_Corrupt", I only built this computer around a year ago and it ran smoothly until now, nothing has changed inside the computer and I just started getting errors out of the blue, on some games ill get in and play for a little bit but get extreme stutters and sometimes just freeze completely, I noticed sometimes windows makes the USB disconnecting noise and after some messing around when I tap the side of my computer case it keeps disconnecting something from windows (specifically when tapping near the PSU), im unsure what this could be and don't want to go spending hundreds getting parts I don't need, any help will be appreciated thanks!