For the first few times when i switch on my computer every day,
after 1 or 2 minutes, the monitor showed "no signal"
then i tried to unplug the monitor and replug again
sometimes that will work, sometimes it wont
while the monitor is not working, i tried to reboot the computer
it will hv a wired "bip sound" it is like a long bip + a short bip
just for ur additional information,
recently i hv a ram that is malfunction but i have removed it already
and becoz of the construction work of my house
i hv unplug all the wire and move the computer to another position
thx