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23 Posts

07-22-2010

United Kingdom

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X201t Win7 64 has started spontaneously rebooting

2010-12-14, 15:40 PM

Since a November's round of Lenovo updates, I've been occasionally coming back to my X201t after walking away for a few minutes to find it waiting at the Windows logon screen having rebooted. Windows is NOT set to reboot on failure, so these are presumably not bluescreen crashes.

 

The event log only shows that Windows rebooted unexpectedly ("The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly."). Timings are 03/11/2010 16:48, 07/11/2010 15:24 and 18:24, and again today at 14/12/2010 15:09, so there's not much of a pattern.

 

Every Lenovo update except the recent sound one which removes functionality is installed; likewise Windows and MSE are up to date. In all cases the system has been on mains power with a charged battery.

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4685 Posts

01-22-2010

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Re: X201t Win7 64 has started spontaneously rebooting

2010-12-17, 12:15 PM

i'm a firm believer of, if it ain't broke, don't fix it.  if your system is running good, then you don't necessarily have to have every update that comes along.  if you are going to do updates, then install one at a time and let it run for awhile before you do the next one. doing them all at once and then getting a problem makes it very hard to determine which one is screwing up.  if it's actually an update that's screwing up.

 

ok, to your problem.  when you walk away is anything running on your machine?  or do you just have the desktop showing?  when you come back to a reboot, check the battery status. is it still showing as charged?   is the ac adapter running hot?  from the bios you could do a memory test and make sure the ram chips are ok.  is the laptop running hot?  do you use a fan base?  i'm inclined to think that this is a heat issue or a power issue rather than an update issue.  what virus protection are you running?  i know this sounds like a lot of questions but we need to know all this, sorry.   

 

 


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23 Posts

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Re: X201t Win7 64 has started spontaneously rebooting

2010-12-20, 13:07 PM
It's not a thermal or power issue; the laptop (and its power adapter) is running cool and battery reporting remains high after a reboot. I did a memory test within the last few months and may do so again, but from past experience I'd expect that kind of problem to manifest itself more reliably under heavy load. There's usually but not always a few unpriviledged processes running, e.g. Cygwin mintty. I have no reason to suspect them as the cause. Virus protection is Microsoft Security Essentials and I am reasonably confident it hasn't been exposed to anything.
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19 Posts

12-12-2010

Wichita, KS

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Re: X201t Win7 64 has started spontaneously rebooting

2010-12-20, 17:33 PM

Which firewall are you using?

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23 Posts

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Re: X201t Win7 64 has started spontaneously rebooting

2010-12-21, 14:29 PM

Standard Windows one. The machine also lives behind a router doing NAT with no ports forwarded to it.

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Re: X201t Win7 64 has started spontaneously rebooting

2010-12-21, 23:45 PM

how about sleep settings or hibernate settings. also screen saver.  are they set for different times? or all set to go at the same time.  it would be nice if you were right there when it does it so you could see exactly what it does.   


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23 Posts

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Re: X201t Win7 64 has started spontaneously rebooting

2010-12-21, 23:47 PM

Sleep, hibernate, and screensavers are all off, both mains and battery.

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  • Message 8 of 15

Re: X201t Win7 64 has started spontaneously rebooting

2010-12-22, 1:46 AM

when you looked in the event log, which one did you look in. the one in system tools or the one in  administrative tools?  

control panel, administrative tools,  computer management, event viewer,  under the summary there should be listed something under critical. if you click on each one it should say at the bottom of the page what happened in detail and give an error number.


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23 Posts

07-22-2010

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Re: X201t Win7 64 has started spontaneously rebooting

2010-12-22, 13:22 PM

See the original post. The event viewer gives no additional details.

 

Since it's been over 7 days it no longer shows in the summary, but hunting down the event under the Windows Logs > System category shows it as being event ID 6008, which is sure enough "unexpected shutdown". There are no informative events before this; just boot noise, and then normal running system noise.

 

Hmm. I do have a load of SideBySide errors in the Application log just before then, though. All manifest errors ("Invalid XML syntax", although from past experience Microsoft's library loader has a bad habit of reporting that as a general-purpose error), from C:\Program Files (x86)\Lenovo\Access Connections\AcCryptHlpr.dll, c:\program files (x86)\microsoft\search enhancement pack\search box extension\SRCHBXEX.DLL, and c:\program files (x86)\microsoft\search enhancement pack\search helper\SearchHelper.dll, repeatedly. I'm seeing only the search ones on the 3rd, and none of them on the 7th.

 

Did a full filesystem check only yesterday, so I guess I'll set this blasted thing running memtest86 later in case the search indexer is agitating an issue somewhere high in memory that the Lenovo tools failed to diagnose. :/

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23 Posts

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  • Message 10 of 15

Re: X201t Win7 64 has started spontaneously rebooting

2010-12-22, 15:14 PM

Right, both memtest86 and previously the Lenovo diagnostics tool are happy that the memory is fine.

 

Since there haven't been any other people reporting this issue here I'll assume it's not X201T-specific. The only other candidate that comes to is ReadyBoost glitching even though the SD card tests OK given a rare intermittent disk fault on that device in the log, and that's nontrivial to experimentally test given the long period between these reboots, not to mention too useful to want to turn off.

 

Thanks anyway.

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