Just a quick check/second opinion; have I completely broken my computer. The basic problem is that it will not boot, or even turn on. Spec CPU - AMD Phenom II X4 950 I think MB - MSI 790FX-GD70 GPU - XFX 9800GX2 RAM - 8GB Corsair PSU – Corsair HX1000 Background The computer was up and running and I was overclocking it (pushing it quite hard). Set my settings, rebooted to windows, and started stressing it, then BSOD, waited for it to reboot, but although the fans were running, nothing else happened. So I turned it off manually and back on, and then nothing was running, not even the fans. Fixes I have tried Tried re-setting the CMOS (via the button on the motherboard), tried one stick of RAM, tried disconnecting everything but the essentials, still no joy. Tried disconnecting the 8 pin CPU power supply, this caused the fans to start spinning, but nothing booted. Re-connected the 8 pin CPU power supply, and again noting starts. Everything seems to be attached correctly, and nothing appears damaged. So have I destroyed my motherboard and CPU, or have I missed something?