New PSU install - Moniter receiving no connection

Hi there,

I have just installed a new power supply and now my monitor is receiving no connection.

I fear that on my mobo there is an ATX12v slot that my old PSU connected to but my new one has no cable to connect to it.

Do you think this is the problem???

My machine turns on but nothing happens on screen apart from a no connection display.

Specs:

MOBO - ASUS P5G41T-M LX2
PSU - Corsair 500W CX V2
CPU - intel core 2 quad 2.5Ghz Q8300

Cheers for any help guys...