Motherboard problems

[dacia]

i, I need a bit of advice here. I have an Asus P5K motherboard, and I'm not getting a signal from the graphics card when I switch the power on. The drives fire up (there's no OS installed yet) and the LEDs light up and the fans spin, but that's all. The reason I thought this might be a motherboard problem is that it does not make the beeps that it is supposed to in the event of a problem, with one exception. With no RAM installed, it makes the appropriate beeping sound as described in the manual, but with RAM in there it doesn't sound for lack of keyboard, or (trying without the Geforce card) lack of VGA, both of which it should do. I've tried all I can think of, including clearing the RTC RAM and I'm out of ideas. I just want to make sure this is likely a motherboard failure (or could it be CPU or something?) before I buy another.

Asus P5K motherboard
Geforce 8800GTS
Intel Core 2 Duo E6850
2x2 gb DDR2
250gb IDE HDD
400w PSU
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DACIA

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[Jg Maximum]

What type of cable are you using, If dvi try using vga cable in stead. Make sure monitor is set to apropiate settings, dvi rgb, vga ,analong etc. However seems like the cpu 4 pin power cable is not pluged in. Be sure to double check that plug is seated and pins in molex from psu are not coming out. I have found some preetyy crappy connectors on some psu.