Check cable connection first

if you need help in recognizing cables and connections, click on the above link.

• Look in the back of the computer and push th cables in very gently. Sometimes it helps to actually unplug them from the computer and then re plug. you could short out the motherboard by plugging in some cables while your system is running. shut down the machine before re plugging your mouse, keyboard and other cables.
• if you have TV link or other hardware connected to the computer, check those cable connections also.
• look at the back of the monitor and gently push the cable.
• check your power strip connection. is it unplugged in the wall? is the power indicator power lit?
• if these doesn't work then call your help desk.