Hi, I had a problem with my desktop where it would turn on but nothing would appear on the screen. The HDD would not spin. After replacing the graphics card and other parts, I realised that it was the CPU so I bought a new motherboard: Gigabyte GA-78LMT-S2P and a new CPU: AMD Phenon II combo. Now, the machine starts up but as soon the Windows logo (Win7) starts to form, the machine freezes on it for a split second and then reboots. I have reset the CMOS using the motherboard jumpers. I have gone into Windows' diagnostic and restored windows to a previous restore point as well as even restoring Windows back to the factory settings (per the HP tools) but I continue to run into the same problem of the machine restarting at the Windows logo. Does anyone have any ideas what is going on here?