i bought a new mobo a month ago. i installed everything myself. the computer started fine nd was running fine till yesterday when it all crashed. yesterday i pressed the power button nd moved to other room for nearly 10 mintes. When i came back the monitor was showing something very weird. Like some codes or signs or symbol which were blinking randomly. vibrating in a similar way it vibrate when we see screen with a video camera. I quickly pressed the reset button. Nd from then my system isn't taking boot. It gives continous short beep which is a power error according to mobo mannual. processor fan spins normally. Power nd hd lead glows constantly. Now according to mobo mannual a psu of 500w of more is recommended but i have a psu of 450w. Is my psu creating problem? If it is psu that causing problem then why my pc worked fine for a month? ---------- Post added at 05:47 PM ---------- Previous post was at 05:19 PM ---------- when i start my pic without ram it gives 9 long beep.