i have had an hp computer installed with xp for many years now and about over a year ago it would shut off or reboot unexpectedly with no warning messages or anything. At times like last night and this morning when i try to turn it on it would sound like everything is working but nothing ever shows up on screen no loading screen or anything and the computer beeps continuously when on and the monitor goes to sleep right away. im using it right now but who knows when it will go, it also doesn't beep while its actually working.
please help