There are a lot of things that can cause the laptop to not boot or display properly.
Are you getting any beeping sounds or flashing LEDs when you turn on the computer? The beeps or flashing LEDs indicate an error, beeps will repeat a pattern 3 beeps pause 3 beeps pause or similar. Do the keyboard Caps lock, Numb lock and Scroll lock lights flash shortly after booting? Does the fan run, is it running normal or loud? Does a message show up on the screen?
5 
1 
There are a lot of things that can cause the laptop to not boot or display properly.
Are you getting any beeping sounds or flashing LEDs when you turn on the computer? The beeps or flashing LEDs indicate an error, beeps will repeat a pattern 3 beeps pause 3 beeps pause or similar. Do the keyboard Caps lock, Numb lock and Scroll lock lights flash shortly after booting? Does the fan run, is it running normal or loud? Does a message show up on the screen?
DrGlowire さんによる