If you do not see the banner screen within 10 to 15 seconds after you turn on the power:
Check the power LED at the front of the system to see if it is lit.
Make sure the AC power cord is securely attached to both the power supply and the AC wall outlet.
Be sure the AC wall outlet has power.
Check to see that the keyboard cables are firmly connected.
Try pressing the power key again.
You should hear a beep as the machine comes on.
If the machine does not come on, try pressing the power switch on the rear panel.
See Figure 2-3.
If the power still does not come on, call your Sun sales office or a service provider.