Laptops can not be switched Troubleshooting
Click the "Power" button, the computer screen is not bright, will sound ber ber ber ber, the impact on the ten sound does not ring, found that the power light is extinguished.
Find solutions online, suspect a memory problem.
Practical solutions:
Open notebook cover (if cover screw is screwed down, would not have screwed up, you can open the back cover direct debit), then unplug the memory stick in the press again, to see whether the normal boot,
Unplug and then a reboot to see if normal, then pulls it slot, then turn to see if normal,
I found after the actual test, there should be a bad memory. Another memory can be individually taken down after work.