We purchased recently the following components, the case was ordered earlier. After putting it together the computer will only run for 5 seconds and shut down.
The programs do not get loaded. We have a new power supply with 650 W
After we reassembled everything again the computer starts with the start button led off and the reset led on. It stays on, but nothing get's loaded.
The only way to shut the computer down is by pressing the start button. We do hear very slight beep coming from the hard drive.

I look forward to your answer,

ASUS Blu-Ray Combo Black SATA Model BC-1205PT -Item #: N82E16827135158

Intel Core 2 Duo E6750 Conroe 2.66GHz LGA 775 65W Dual-Core Processor Model BX80557E6750 -
Creative Sound Blaster X-Fi XtremeGamer 7.1 Channels PCI Interface Sound Card - Retai
Western Digital Raptor WD1500ADFD 150GB 10000 RPM SATA 1.5Gb/s Hard Drive - OEM

ASUS P5N-E SLI LGA 775 NVIDIA nForce 650i SLI ATX Intel Motherboard - Retail
Item #: N82E16813131142

EVGA 512-P3-N802-AR GeForce 8800GT Superclocked 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail
Item #: N82E16814130319

CORSAIR XMS2 2GB 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Desktop Memory Model CM2X2048-6400C5 - Retail

Sounds like you didn't properly paste and attach your cpu.

http://www.arcticsilver.com/arctic_silver_instructions.htm