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Roy
Token Ring
Posts: 191
Location: Israel
Views: 3,424
Message 1 of 20

T420s shuts down unexpectedly

My T420S suddenly has turned of (no warning or BSOD).

No recorded for this in the Windows Event Viewer.

Should I ask for a motherboard replacement? (my dad's T400 once suffered from this issue and it was resolved with a motherboard replacement).

BTW: the temperature of the cpu is normall and SMART record of the Seagate HDD is normal.

___________________________________________________________
Lenovo Thinkpad T420s
lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Location: Australia, Melbourne
Views: 3,420
Message 2 of 20

Re: T420s shuts down unexpectedly

does this occur repeatedly?
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
Roy
Token Ring
Posts: 191
Location: Israel
Views: 3,415
Message 3 of 20

Re: T420s shuts down unexpectedly

It happen once before, after I re-imaged the OS (the Bluetooth driver wipeout).

Now it is the second time it happened.

There is no specific scenario for it. 

___________________________________________________________
Lenovo Thinkpad T420s
Guru
Posts: 9,598
Location: CA
Views: 3,410
Message 4 of 20

Re: T420s shuts down unexpectedly

Shut down, and not restart, right? Windows didn't throw an unexpected shutdown warning at boot, did it?

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Location: Australia, Melbourne
Views: 3,408
Message 5 of 20

Re: T420s shuts down unexpectedly

hum that is strange, maybe you should call up Lenovo and see. But this sort of fault are pretty hard to test for in the depot. Lenovo warranty may offer you a motherboard replacement, but you would need to provide a detail description of possible events that may trigger this.
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
Roy
Token Ring
Posts: 191
Location: Israel
Views: 3,407
Message 6 of 20

Re: T420s shuts down unexpectedly


@ColonelONeill wrote:
Shut down, and not restart, right? Windows didn't throw an unexpected shutdown warning at boot, did it?

No restart, immidiate shutdown. No error.

No event that triggered this, the computer was idle, I didn't even touched it.

___________________________________________________________
Lenovo Thinkpad T420s
Guru
Posts: 9,598
Location: CA
Views: 3,397
Message 7 of 20

Re: T420s shuts down unexpectedly

I meant on the boot after it shutdown.

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
Roy
Token Ring
Posts: 191
Location: Israel
Views: 3,395
Message 8 of 20

Re: T420s shuts down unexpectedly


@ColonelONeill wrote:
I meant on the boot after it shutdown.

No error on the boot screen except from the usual "your computer has shutdown unexpectedly..." and I chose to start windows normally.

___________________________________________________________
Lenovo Thinkpad T420s
Roy
Token Ring
Posts: 191
Location: Israel
Views: 3,362
Message 9 of 20

Re: T420s shuts down unexpectedly

No one encountered this problem before on the new TX20 thinkpads?

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Lenovo Thinkpad T420s
Guru
Posts: 9,598
Location: CA
Views: 3,342
Message 10 of 20

Re: T420s shuts down unexpectedly

Is it still happening?

It's sounding a bit like the issue that plagued the T410s.

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
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