The solution to the failure to resume startup of series Fn+F4 such as Thinkpad X200 after pressing the power button after standby

Many friends responded to the Thinkpad series, especially the X200, after installing the XP themselves, the drivers were also installed. After pressing the Fn+F4 standby function combination key, there was a problem that the standby button did not respond and could not wake up. They began to suspect that it was the driver problem, and later updated, there was still a problem. Feel that there is a problem with the power management or BIOS settings, so go to the BIOS to find the reason.

Inadvertently, I saw an option called "Security" in BIOS, in which there was an option called "Security Chip". The default state was "Inactive", so I changed it to "Active". As a result, I entered the system again and found that the problem that the standby could not be restored was solved. It's really strange. Later, when I was idle, I changed the state of the Security Chip from Active to Inactive. As a result, the machine could still recover normally after standby. I completely fainted.

However, after the change, it has no effect on the machine. So if there are friends who can't wait to recover, let's try it. Basically all of them can be solved.