x220 random shutoff - thermal ?

[rsutoratosu]

I have a user coming to me with a fairly new x220 with random shutdown (power off) issues. So far in event log, I see a lot of acpi thermal trip. Laptop is from may of this year.. still looks newish, nothing blocking the vents.

I dont hear anything wrong with the fan, i plan to run this through the pc doctor or whatever it has now for 3-4 days 24/7 to see if I encounter it. Last but not least, reimage the pc also.

This is first x220 out of 25 thats having this "thermal" issue. Anyone else have similar problem before ?

[no_man]

My X220: 4286-CTO, i7, 8GB, 120GB SSD, WIN7-Ultimate-64. Ordered/arrived in June 2011.
I run this X220 on battery power in many environments and in stationary positions. No problems.

However,
At home with the X220 on my lap in a chair, on some occasions Windows randomly powers it off. This happens when it is in motion as I get out of the chair. I then power on and Windows 'resumes processing the system' without incident.
I am usually in my home office and the chair thing is rare, so it may not be the thermal thing.

[rsutoratosu]

this sounds like it... so i been running the lenovo toolbox stress test while shaking the pc.. its ssd so it can take it but still, i couldn't get it to shutdown

[ceb]

Is this when running on mains or battery? The x220 is prone to loose battery syndrome which will cause shutdowns.

[rsutoratosu]

running on battery, right its like slight movement the thing turns off.. weird thing is i had it run the stress test and i have a tech shake it every few minutes and its not turning off, so its hard to say, do i need to lean the computer in a certain direction to turn it off.. sad