if I turn on the computer i get no output on the screen/Black Screen and i get a beep code continously in a 2-3 seconds interval i am using a 300 watts power supply ATX and my motherboard is asus cuv4x-c
Remove the RAM modules and see if there is a change in beep. If there is no change then its your RAM. If you have more than one module try each one separately.
The BIOS is giving you a beep code for memory. You may have a stick that is not seated properly in the DIMM slot, or in the wrong slot, or you have some bad memory. The only way to know if you have bad memory is to run MEMTEST 86+.
two or three beeps indicate memory problems. one continuous beep would indicate either a memory problem or your video solution. first, try to re seat your memory and if you have one, your video card. also if your video card has a power connector, make sure it is connected. if that doesn't work, replace your memory one stick at a time.then get a new video card and try that....good luck