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26 Posts

01-31-2009

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Re: T400s random shutdowns

2010-09-10, 14:53 PM

wrote:

just check the fru and go page 36 of this talk to see whether they owe you a replacement of your system board.


It looks like I have a "60..." board, so in theory, it should be fine.  Since changing around power settings, it's been running fine now for about 24 hours, but I know that doesn't in anyway prove anything one way or the other.

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6 Posts

04-21-2010

Toronto

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Re: T400s random shutdowns

2010-09-13, 16:14 PM
new issue of shutdown

2 weeks ago I updated PM to the latest version, I set up the system to be in sleep after 20 mins as power is on. but it always shutdown instead of sleep.

how to fix the problem?
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37 Posts

03-13-2010

China

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Re: T400s random shutdowns

2010-09-16, 12:56 PM
there are two panels to manage power settings, though power manager of lenovo and though power settings of microsoft. check both to decide whether to ask for service.
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26 Posts

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Re: T400s random shutdowns

2010-09-23, 21:28 PM

My "60..." board is being replaced under onsite warranty by a "63..." board.  Hopefully that solves the problem.   This time when I called, the tech knew exactly the problem and the solution. The previous two techs knew nothing about this problem and the MB replacement.

 

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37 Posts

03-13-2010

China

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Re: T400s random shutdowns

2010-09-25, 6:22 AM

you guys are lucky.

i am not.

the first time my pad was sent, they opened it and refused to do the replacement. and when i received it, i found that they did not connect the system board to the system board. cool! the second time they did the replacement by using a 55y one. and when i received it i found that they did not connect the wire controller to the system board. how pro!

i really hope lenovo to hire some guys who really know how computers work, instead of arrogant ignorant Mr. know-alls.

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26 Posts

01-31-2009

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Re: T400s random shutdowns

2010-09-27, 22:05 PM

Just an update, IBM arrived today to replace the "60" system board with a "63" board.  This was done, and the machine would not start up.  The tech has ordered another new system board and will be back tomorrow.   :x

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8095 Posts

11-19-2007

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Re: T400s random shutdowns

2010-09-28, 15:14 PM

mpcook,

 

Sorry that you your experience with service reflected inconsistent levels of knowledge / awareness of the issue here.  If you could send me a PM with your service case number and model / serial number I'd like to look into that.

 

Also, could you tell us a bit more about how the new board didn't work?  No power?  No display?  Or would not boot properly?    Please let us know the outcome of the follow up service.

 

Best regards,

 

Mark

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29 Posts

09-28-2010

Atlanta, GA

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Re: T400s random shutdowns

2010-09-28, 19:10 PM

So as it is nearly October, 2010, this issue *still* hasn't been resolved?

 

I have a ~2 month old machine which does this, and my only solution is to have Lenovo swap the system board?

 

Does anyone at Lenovo have an idea of what the root cause is?  Could a BIOS patch fix it?

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26 Posts

01-31-2009

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Re: T400s random shutdowns

2010-09-28, 23:25 PM

Thanks Mark for your reply.  I will PM you with details.  The tech arrived today and put in another new board.  So far, all is fine, although I will have to wait and see if I get a random shut down.  The defective new board he installed yesterday would not boot all the way up.  Windows would hang, and only after reseating battery and charger would it even power up again, then it would hang again.  Most times, pressing the power button multiple times would do nothing.  This was so different from the symptoms I started with, it was obviously a new problem, either the board or the installation.  Today, the new board went in and the machine started right up in a normal way.  I will hope for the best now.  I noted that this was the first T400s board the tech has had to replace.

 

I do still have a sneaking suspicion that this could be a Windows 7 problem, only because (a) I had a newer system board to start (60...) which I understood was not a "problem board" and (b) because the problem only started after upgrading to 7 from XP a few weeks ago, the machine running fine for the 9 months prior.  Hopefully I am wrong and the new board solves my issue.

 

Mike

 

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26 Posts

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Re: T400s random shutdowns

2010-09-29, 10:28 AM

I had another shutdown over night.   This is very discouraging.  I was running diagnostics via TVT unattended.

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