1. Check all the power cables. Power outlet to extension outlet(s) to AVR (Automatic Voltage Regular) to UPS (Uninterruptible Power Supply) to CPU Power Supply (the bold italic word is optional).
2. Press the CPU power button. Don't get confuse with the smaller RESET button. This light up the power indicator and the blinking red process indicator.
3. The monitor should be showing some text behind the black background. If not it's probably off. Verify if the monitor power indicator blue or green light is on. Usually the power button is just beside the power indicator light. Turn the monitor on if it's off.
4. In this stage the monitor should be showing texts the are moving upward indicating that the computer is booting or presenting a prompt asking for password. Enter the password.
5. If all is well the booting would resume will lead you to a more desirable Windows GUI.
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