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What's DOS?
Posts: 1
Registered: ‎10-12-2015
Location: Orem, UT
Views: 3,062
Message 1 of 2

T450S will not power on



Brand new T450S. It will not power on. As I plug in the AC adapter, the power button blinks green light three times.  Also on the outside of the ThinkPad, the red light simulaneously blinks three times...then nothing.


I have removed the battery and unplugged the AC.

I have also tried the reset button on the bottom of the ThinkPad.


Nothing seems to work.  Is there any significance in the red and green lights blinking only 3 times?


Please, someone help me!!!

Community SeniorMod
Community SeniorMod
Posts: 6,885
Registered: ‎01-13-2008
Location: US
Views: 2,995
Message 2 of 2

Re: T450S will not power on

Hello and welcome,


The "three blinks" isn't an error indication.  From (English) User Guide - ThinkPad T450s


Blinks for three times: The computer is initially connected to power.


Sorry I don't have anything more useful to offer.  If the reset hole and holding down the power button for several seconds don't do anything, it's probably time to call support:


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Good luck, Z.

The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc.

The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored - questions and answers belong in the forum so that others may contribute and benefit. ... GeezBlog


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