Last night, i pressed the sleep button on the keyboard to see what it would do. i got logged out and the screen said either preparing to standby or preparing to sleep. i booted it back up (it booted normally; didn't go to the welcome screen), and did it again. it was blinking like it was on standby. this time, i didn't care to turn it back on and went to sleep.The next morning there was no light blinking and when i turned on my computer, there is no display and no power to the keyboard and mouse. only the motherboard gets powered. So Please help how can i wake up this computer from sleep?