Lenovo X61s sudden shut down

[Guest]

Hello,
My Lenovo X61s suddenly shuts down, it happens in a split second, dead. Happened occasionally past few weeks, but now frequently, several times today only, please help

 

[o1die]

Could be the power supply is going out; can't recommend any for lenova. Check ebay and decide if it's worth trying. If it's the motherboard, they are very expensive even used.