new build beeping

[PRINCESSJOAN]

hi
I just put together my first computer, I have tried to start it up, the fans come on the lights
but it beeps 4 times and the monitor has no signal.
i used a intel classic dg313 pr board
intel duo e2180 processor
350 w power supply
wd 160gb 3.5 sata 7200 rpm
msoem vista home basic
corsair 2x1gb xms2 ddr2-800 cas
samsoem sam 20x dvdrw sata no s
thermalta m9 mid tower

i have triple check my connections
 

[stevejohnson1958]

Can you describe the beeps?  Short?  Long?

Have you looked here:  http://www.computerhope.com/beep.htm

Sounds like it's hardware related, but we'll have to narrow it down.

Onboard video...or video card attached?

[Broni]

According to Intel: http://www.intel.com/support/motherboards/desktop/sb/cs-010249.htm

You are getting 4 beeps indicating a timer not operational:

    * Check for foreign objects such as screws that may ground the motherboard and make sure that screws that hold the motherboard are not too tight.
    * Swap the motherboard.