Newly Built PC No Signal to Monitor

[JAdaken]

Components:
Motherboard-Foxconn C51XEM2AA- 8EKRS2H Socket AM2 NVIDIA nForce 590 SLI MCP ATX AMD Motherboard

Processor-AMD Athlon 64 3800+ Orleans 2.4GHz 512KB L2 Cache Socket AM2 Processor

RAM-Patriot eXtreme Performance 1GB 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Desktop Memory

Video Card-XFX PVT71PUDE3 Geforce 7900GS 256MB 256-bit GDDR3 PCI Express x16 XT Edition

HDD-Western Digital Caviar SE16 WD3200KS 320GB 7200 RPM 16MB Cache SATA 3.0Gb/s Hard Drive

Case/PSU-APEVIA (ASPIRE) X-Pider ATXA2XPW-AL/500 Silver Aluminum ATX Mid Tower Computer Case ATX 500W Daul12V (V2.03) Power Supply

I built a computer for someone and after installing everything I hooked it up and turned it on. Everything turned on but there is no signal to the monitor (monitor works fine) I returned a 7600GS video card after hearing that they weren't supported by the mobo. I took everything apart and put it back together again with no success.

Also there doesn't appear to be a place to plug in the chassis speaker on the mobo, the blueprints shows where its supposed to plug in but there are no pins there. So I have no idea if it posts. There is an onboard LED light that is supposedly suppose to show error numbers but all it shows is -- instead of numbers or letters.

Any help would be greatly appreciated.

[Cricket]

Having problems with a new build? Try this. (http://forum.pcmech.com/showthread.php?t=12753)

:) Cricket

[JAdaken]

Sorry I meant to say that I did try that to no effect.

[Alaron]

If the bare minimum parts outside of the case will not boot up, you need to try parts substitution. I would start with the power supply. Aspires are not quality units. Check our list: http://forum.pcmech.com/showthread.php?t=131195

[newbuilder14]

Check to make sure you have the ATX12v Rail (2x2 square) connector that connects next to the CPU socket.