Silent Power Supplies Really Bad Power Supply New Custom Built Computer Fires Up, No Beep, No Monitor Input Signal. See Details.?

New custom built computer fires up, no beep, no monitor input signal. See details.? - silent power supplies really bad power supply

Custom Orders ibuypower.com. The specifications are as follows:
Power (600 Watts - Power Supply SLI-Ready)
Processor ([== Quad Core ==] AMD Phenom ™ X4 Black Edition II 940 Dual-Core CPU w / HyperTransport Technology)
Processor cooling ([=== Silent ===] AVC Silent AMD CPU heatsink and fan Quiet & Overclocking Proof)
Motherboard ([SLI] Asus M3N72-D NVIDIA nForce 750a SLI with 7.1 Sound, GB LAN, S-ATA RAID, IEEE 1394, USB 2.0, Dual PCI-E/HDMI MB)
(8 GB [2 GB X4] DDR2-800 Memory Module PC6400
NVIDIA GeForce 9800 GTX + 1GB w / DVI + TV Out Video

I have it now reads. No signal. Fans running, lights, fans working on the graphics card. Mobo is a light in the green. Unable to read LCD monitor input. I had two converters outpout VGA video card, not helped. VGA cable installed on the MOBO itself, and still no help.

IBP called and asked me to erase the memory, etc., in vain. They say it looks like a faulty video card. What are some thoughhts monitor mechanical equipmentout there? Possible bad Mobo?