Another possibility is the main power switch on the back of the computer may be switched off which would override the power button on the front of the computer. Computer just beeps when you first turn it on and nothing happens. The most common reason for this is that your monitor cable is not plugged in or it has come loose. Check your monitor cable and make sure it fits snug with your video card on the back of the computer. Beeping sounds could also be a sign of defective memory chips installed in the computer.
Computer turns on but gets stuck at the screen where it counts the memory.
For one, someone may have gone into the system setup and changed your hard drive settings preventing the computer from finding your hard drive. In this case, get in contact with us. If this still doesn't work, some other device may be preventing it from getting past that screen. Please contact us for assistance. Computer gets no power whatsoever.