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21 Posts

10-22-2009

San Diego

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Re: T400s random shutdowns

2010-02-13, 3:51 AM

 


wrote:

Can someone who's had their mobo replaced explain the quality of the repair?

 


I called Lenovo customer support to get a case number, which they quickly provided me. I took my T400s to my local Lenovo-authorized depot repair, the same one I went to in the fall of 2009 when the problem first arised. They were able to replace my motherboard over last weekend while I was traveling. As far as I can tell, the quality of the repair was high. I have no issues with how they did it.  I will of course monitor for any more random shutdowns, but since I have the new motherboard (I had someone else pick it up so I didn't get the serial number) I am assuming the bad problem is behind me. If not, I'll post to this board.

 

 

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28 Posts

09-28-2009

SoCal, USA

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Re: T400s random shutdowns

2010-02-14, 3:22 AM

wrote:

As I sit here contemplating whether or not to call for service on this MB issue, and probably go through a 2+ hour song and dance on why it needs to be replaced,  if anyone has just done a low level format and a clean install of Win 7.  I'd be tempted to just let Win 7 find the drivers, and forget all the other Lenovo crap, unless I ran into a major hurdle.

 

Anyway, just curious if anyone has done this yet. 


 

Yes, twice - and tried other OS - XP Professional, Vista and Windows 7 - with and without their extra stuff and it still shutdown.

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162 Posts

10-21-2009

Netherlands, Hilversum

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Re: T400s random shutdowns

2010-02-14, 8:32 AM

Please can we stop this endless discussion now. Everything has already been tried. The cause and solution is also well known by now. So why again ask the same questions about did you try this or that?

 

To fix this problem simply follow Marks advice. Have your MB replaced by a FRU NB 60xxxx or higher. It's the *only* way it can be fixed!!

 

--

jan

--- Lenovo Thinkpad t440p (20AN-CT01WW) + SAMSUNG MZ7TD512HAGM-000L1 SSD + 16G SDRAM + 14.0FHD 1920x1080 ---
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332 Posts

12-01-2009

Czech Republic

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Re: T400s random shutdowns

2010-02-14, 14:31 PM
well i have asked mb to be replaced, so i have in my T400s new mb, motherboard serial number is now VQ12501H1UJ (previous was VQ0SN96C05M). But i cannot see in anny diagnostic tool the P/N, that is discussed here. Is it really visible only physicly (so to check i have to look inside my laptop) or it can be checked by some diagnostic tool. Thanks.
----------------------------------------------------
Lenovo T440s, 20AQ0067MC, Windows 8.1 Pro x64 UEFI, Samsung 840 EVO SSD 250 GB, 8 GB RAM
Lenovo T430s, 2356LQG, Windows 8.1 Pro x64 UEFI, Intel 520 SSD 180 GB, 8 GB RAM
Lenovo T420s, 4171-6SG, Windows 8 Pro x64 UEFI, Intel 320 SSD 120 GB, 8 GB RAM
Lenovo T400s, 2808-CYG, Windows 7 Ultimate x64
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22 Posts

02-01-2010

San Clemente, CA

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  • Message 435 of 613

Re: T400s random shutdowns

2010-02-14, 15:13 PM

Did I miss a thread/post where someone wrote in that the MB replacement fixed the problem????

 

All I have seen are posts that a handful of people have had the MB replaced.  I've also seen Mark_Lenovo state that the 60Y and 63Y boards may solve the problem.  There is nothing official from Lenovo on this on the support site, and there is no tested/verified fix at the moment.

 

So yes Jan, we are still going to post stuff on this thread!

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27 Posts

12-14-2009

Florida

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Re: T400s random shutdowns

2010-02-14, 15:39 PM

Yes, you missed it. Mark has reported the official diagnosis, and solution.

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162 Posts

10-21-2009

Netherlands, Hilversum

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Re: T400s random shutdowns

2010-02-14, 16:13 PM

Mark explicitly confirmed that MB FRU PN 60 and greater (yes you can only check visibly via the stickers on the MB itself), that the components have changed that caused these shutdowns. With older MB (FRU P/N 43) the problem exists! Only it differs in the frequency this happens to customers (some will *never* have this while others have it several times a week or day; I had it ony once in a month or so). With MB FRU PN 43 also the combination of BIOS, drivers etc. being used had some intfluence on this frequency. WIth MB FRU PN 60 and greater no further reports have been posted.

 

It *is* the official solution within Lenovo btw. The way this has been communicated within Lenovo internally is another issue. Not all local service organizations are already aware of this solution. It seems to have been communicated via certain channels but not all support engineers seem to be aware already. But i think this is also being addressed.

 

So it 's really not of any additional value to question if driver X or Y or OS X or Y will help. Because MB FRU PN 60 or higher is the only structural solution. I have 60 now and can confirm it's working rock stable.

 

--

jan

--- Lenovo Thinkpad t440p (20AN-CT01WW) + SAMSUNG MZ7TD512HAGM-000L1 SSD + 16G SDRAM + 14.0FHD 1920x1080 ---
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26 Posts

10-27-2009

Atlanta

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  • Message 438 of 613

Re: T400s random shutdowns

2010-02-14, 16:58 PM

As I reported above, my T-400s MB was replaced on Friday with a MB with a planar p/n beginning 60Y.

 

It is now about 40 hours since that replacement.

 

During that interval, I've just had my third total keyboard lockup.  No keys function.  The mouse continues to function normally.  The only "solution" is to reboot.  This never occurred previously during my ownership of this machine.

 

Has anyone else experienced this?  Is it likely a result of damage by the tech in installing the new MB?

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162 Posts

10-21-2009

Netherlands, Hilversum

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Re: T400s random shutdowns

2010-02-14, 17:09 PM

Maybe you should open a new thread. Even better, call Lenovo tech-support. My MB has been replaced by 60Y as well. No problems whatsoever.Something else went wrong? However strange things is that it works again after a reboot, which would almost indicate a software error. But not necessarily. Power off/on can also initialize the keyboard again which causes it to work again. Call tech-support i would say. And mention you didn't have this problem before the MB replacement.

 

--

jan

--- Lenovo Thinkpad t440p (20AN-CT01WW) + SAMSUNG MZ7TD512HAGM-000L1 SSD + 16G SDRAM + 14.0FHD 1920x1080 ---
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26 Posts

10-27-2009

Atlanta

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  • Message 440 of 613

Re: T400s random shutdowns

2010-02-14, 18:21 PM

Jan - I did call tech support, opened a new case, and they are sending a tech with a replacement keyboard.

 

I agree that if it's more than damage caused by the tech in replacing the MB it should be a separate thread. 

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