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piapia1991
Paper Tape
Posts: 1
Registered: ‎11-01-2017
Location: DE
Views: 732
Message 1 of 13

My new T470p is often restarting when lifting it up

Since about 3 weeks I have the problem that sometimes when I lift up  my T470p from the desk, it restarts immediately without a reason.

Does anyone know what could be the reason for that?

My guess would be loose battery contacts or something like that, but if I am trying to move the battery, nothing happens. 

 

Before anyone asks, I have already installed the latest updates, as well as the Bios. 

Thanks in advance for any clues how to solve this.

 

Regards,

Pia

sqet
Paper Tape
Posts: 5
Registered: ‎01-27-2018
Location: PL
Views: 578
Message 2 of 13

Re: My new T470p is often restarting when lifting it up

Have you done something with this problem? I'm stuck with the same issue.
pvsada
What's DOS?
Posts: 2
Registered: ‎04-24-2018
Location: IN
Views: 475
Message 3 of 13

Re: My new T470p is often restarting when lifting it up

I have the same problem with my T470P Lenovo thinkpad. It happens almost always when i lift my laptop

Muyleng
What's DOS?
Posts: 1
Registered: ‎06-30-2018
Location: GB
Views: 392
Message 4 of 13

Re: My new T470p is often restarting when lifting it up

Hi, do you have a solution on this? i also have the same problem.

gfits
Paper Tape
Posts: 2
Registered: ‎07-01-2018
Location: NO
Views: 368
Message 5 of 13

Re: My new T470p is often restarting when lifting it up

I have had have the same problem. I've had a feeling it has something to do with static charges. But now it seems to happen more often when I am resting both my palms down for writing, then reposition the computer with that same grip. Something must be shorting. I have to unplug and remove the battery to get started again.

 

I have already gotten it serviced once. And after that, it was good for almost a month, now back to same issues.

 

Thankfully it's covered with 3 year on-site warranty.

pvsada
What's DOS?
Posts: 2
Registered: ‎04-24-2018
Location: IN
Views: 359
Message 6 of 13

Re: My new T470p is often restarting when lifting it up

Problem still exists for me even after service. It is more often seen when the device gets used for a long time. I generally see after using the device for more than 1hr of usage on battery only. I think it could be related to heating of device.

gfits
Paper Tape
Posts: 2
Registered: ‎07-01-2018
Location: NO
Views: 349
Message 7 of 13

Re: My new T470p is often restarting when lifting it up

To be clear, problem exists for me as well, even after they changed the motherboard.

I think you might be on to something with the overheating issue. When I restart it quickly after I've lost power I am getting thermal warnings in the Linux boot sequence. However, it will never power off by itself. It seems to always want a human touch.

sqet
Paper Tape
Posts: 5
Registered: ‎01-27-2018
Location: PL
Views: 230
Message 8 of 13

Re: My new T470p is often restarting when lifting it up

Motherboard replaced and everything works well

jeremyshaw
802.11n
Posts: 119
Registered: ‎07-13-2018
Location: US
Views: 213
Message 9 of 13

Re: My new T470p is often restarting when lifting it up

Unrelated, I have a Dell Latitude E5450 that did the same thing, powered off when lifted. It ended up being a lot of loose screws, that allowed the chassis and mobo the flex enough to trigger a power cutoff. I noticed the HMM has a page on the proper tightness of screws (I don't remember if it includes torque specs, but I don't think it does). Perhaps that is why some mobo replacements fixed the issue and some didn't?

DCengineer
Paper Tape
Posts: 2
Registered: ‎09-02-2017
Location: US
Views: 161
Message 10 of 13

Re: My new T470p is often restarting when lifting it up

I experience the same issue intermittently. My theory is that it is caused by a combination of high temperature and slightly bending the motherboard.

  • It tends to be more sensitive when being lifted from the right side, especially around the power switch and near the ThinkPad sticker.
  • When the system fails to power on, unscrewing the bottom shell and screwing it back on again seems to fix the issue. However, this could be due to cooling.
  • I don't think the issue is ESD or capacitance-related, since I've only had issues after lifting the machine. If this were an issue, the problem would occur after placing your hand close to the wrong area.

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