T410 doesn't power on

[gnguyen102]

My machine: T410 Windows 7, up-to-date will all windows update as of May 2012, i5, 2 years no-issues,

The issue: when I press the power button like usual, it won't start (nothing happens). When I remove the power/battery, press the power button repeatedly, it powers on and asked to update time (F1), i update the time and it goes into Windows repair mode for about 10 seconds then powers down. This entire fix/auto-power-down happens each time I try to fix by pressing power button with power/battery removed. 

Please help let me know what I should do. 

Best,

[richk]

First, many of these came with 3-year warranty.  Check here:

http://support.lenovo.com/en_US/product-service/warranty-status/default.page?

[gnguyen102]

Thanks Richk, my warranty expired 1 year ago :-(

[richk]

One thing I would try is the cmos battery because it loses date-time.  If the cmos battery is shorted (not very likely) it can act like that.  I would also try ac only.  (main battery removed)

[tripplec]

Yep, CMOS problem and likely the battery. Why, they should last at least 5-10 years. More than most people would use them.