Basically my problem was for whatever reason – at random – when I boot my PC, occasionally I will get a BSOD at startup (before Windows starts to load). If it happens once, it will normally do it a few times consecutively before it starts up like normal.
When I went into BIOS and put my settings back to 'Default', the issue stopped. But of course now my PC is considerably slower at stock speeds.
For whatever reason it's tricky to overclock this Asus P5B motherboard, because certain combinations of Ram Speed, Voltage etc will either give me a 16x link width or a 1x link width.
I don't know why that happens, but the last time I was able to OC over a 4.0 GHZ CPU speed and it kept the 16x link width, I stayed with it - but of course BSOD issues started happening. Other times I tried to OC, I would end up with a 1x link width, and my PC was very slow...even though it was saying the CPU was over 4.0GHZ.
Id like to get my CPU back up to speed and stable, so any help is appreciated!
The BSOD has different errors - sometimes I get a PAGE FAULT error. Here is a screenshot of the BSOD I am getting: