Keeps beeping when on

Beeps and blinking lights tell the technician what is wrong with the computer. Count the beeps and the pattern of the beeps (3 long beeps, 1 long beep followed by 2 short beeps, etc).

Most times it's something related to the motherboard such as memory or video card.

Did you see anything post on the screen during the boot process?

Check your memory.

Remove the Power Cord, Open the Case and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.