Motherboard Alarm?

[kdlklm]

I have a ASUS P5N-EM motherboard, it was working fine for a couple months and now when I try to start it up the motherboard alarm goes off. It won't even bring up the BIOS. Any suggestions

 

[MaDMagik]

Whats the "alarm" sound pattern?

 

[kdlklm]

it is constant

 

[kdlklm]

I tried a video card to see if the onboard card might've been the problem. But it didn't work. I was told adding a separate video card would override the onboard video. I'm not sure if that's true or not, but it was worth a try. No successful.

 

[kdlklm]

Resetting the CMOS change the tone from constant to hi low hi low continuously.

 

[mamw93]

RAM could be bad which wouldn't allow POST. Could also be Conficker worm, which corrupted either the RAM or BIOS chip on your motherboard.