Long story short; I have a bad processor (my fps is HORRIBLE during raids, ranging from 2-10 in 10mans to 1-4 in 25mans in combat), so I bought a new one, the new one wouldn't get enough power from my PSU because my mobo only has a 20pin atx connector on it, so I bought a new motherboard aswell.
CPU: AMD Phenom II X4 940 Black Edition
RAM: 4GB of Kingston DDR2 667MHz RAM
PSU: Corsair VX550W
Motherboard: Asus M4A78
Graphics Card: Sapphire HD4850 Toxic (Factory OC'd)
OS: WinXP Home 32bit
I used CPU-Z to check the RAM, and it said 1 set of 2 had an ECC correction (correction: ECC) and 1 didn't have any correction at all (correction: none), don't know about that though..
Now then, the problem I'm having:
I've installed the new components (the motherboard and the processor) into the chassis, and I push the power button on the front: The pc starts, but there's no video feed coming from the card to the monitor, no POST beeps (chassis speaker is plugged in correctly) and the GFX card has both of it's 2 leds, which indicate a power failure (D1601 - Over temp protection enabled, D1602 - EXT 12V fault), blinking. All fans keep spinning as if nothing out of the ordinary has happened, and nothing is being read from the HDD.
All of the above occurs only with the new mobo+processor, as the graphics card works fine with my current ALiveNF5-eSATA2+ mobo and AMD Athlon 64 x2 4400+ processor.
Any ideas on what might be wrong?