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varunix
Paper Tape
Posts: 5
Registered: ‎09-15-2009
Location: India
Views: 2,068
Message 1 of 10

T400 BLANK | Doesn't TURN ON

I was working on my Thinkpad T400 for almost 2 hours and then I shut it down and put on AC power for charging...

 After an hour I opened the LID and pressed power button but IT NEVER CAME UP... FOLLOWING ARE THE OBSERVATIONS: 

 

  • BATTERY LED GLOWS GREEN
  • z LED, LEFT TO BATTERY LED GLOWS GREEN
  • HARDDISK LED DOESN'T GLOW
  • BUT NO PROCESSING SOUND OR FAN SOUND COMES FROM LAPTOP
  • SCREEN BLANK and LAPTOP SILENT
  • ALSO TRIED BOOTING FROM CD BUT IT DETECTS CD DRIVE, AND STAYS BLANK AND SILENT
Please HELP 
Man Sad

 

lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Registered: ‎12-19-2008
Location: Australia, Melbourne
Views: 2,067
Message 2 of 10

Re: HELP Needed! T400 BLANK | Doesn't TURN ON

take the battery out and ac adapter off. Now press the start button ten times, each time at 30 secs interval. If that don't work, try to take the ram under the palmrest and start the laptop with the ram.

 

 

Regards,

Jin Li

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

I am a volunteer, and not a paid staff of Lenovo or Microsoft
varunix
Paper Tape
Posts: 5
Registered: ‎09-15-2009
Location: India
Views: 2,042
Message 3 of 10

Re: HELP Needed! T400 BLANK | Doesn't TURN ON

I tried as you said, took out the battery and adapter off... pressed start/power button 10 times at around 30 sec intervals but still the same problem... No difference...

I also tried turning on the laptop without RAM, with RAM and with RAM in different slots..

I have also tried turning it on, without Hard disk drive...

But nothing helps... Still the same problem, it doesn't come up... Smiley Sad

 

Laptop is silent with Blank screen and with Battery indicator + z indicator (very next left to battery indicator) glowing.. NO PROCESSING SEEMS To be going on..

lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Registered: ‎12-19-2008
Location: Australia, Melbourne
Views: 2,016
Message 4 of 10

Re: HELP Needed! T400 BLANK | Doesn't TURN ON

southbridge/northbridge or GPU could be acting up. Do you have warranty still?

Regards,

Jin Li

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

I am a volunteer, and not a paid staff of Lenovo or Microsoft
varunix
Paper Tape
Posts: 5
Registered: ‎09-15-2009
Location: India
Views: 1,990
Message 5 of 10

Re: HELP Needed! T400 BLANK | Doesn't TURN ON

Yes it is under warranty as of now.. but not sure about the International one...

lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Registered: ‎12-19-2008
Location: Australia, Melbourne
Views: 1,985
Message 6 of 10

Re: HELP Needed! T400 BLANK | Doesn't TURN ON

http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=LOOK-WARNTY#sw

 

check your warranty status and your international warranty coverage.

 

http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=LOOK-IWS#sw

 

international warranty coverage depends on the model number. 

Regards,

Jin Li

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

I am a volunteer, and not a paid staff of Lenovo or Microsoft
varunix
Paper Tape
Posts: 5
Registered: ‎09-15-2009
Location: India
Views: 1,977
Message 7 of 10

Re: HELP Needed! T400 BLANK | Doesn't TURN ON

Thanks!..

 

Laptop is under warranty and also with International warranty... but its carry-in warranty...

Contacted Customer care, and they have given me the complaint number and have to take the laptop to the service center... 

 

Lets see what they will do.. but it's hard to manage on working days to carry in the laptop to service center... and Service center opens only on working days and same office timings that we have... Man Sad...

 

lead_org Microsoft MVP Contributor
Microsoft MVP Contributor
Posts: 21,009
Registered: ‎12-19-2008
Location: Australia, Melbourne
Views: 1,974
Message 8 of 10

Re: HELP Needed! T400 BLANK | Doesn't TURN ON

maybe ask the depot whether you can courier the laptop to the service depot. 

Regards,

Jin Li

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

I am a volunteer, and not a paid staff of Lenovo or Microsoft
Devon523
What's DOS?
Posts: 1
Registered: ‎08-22-2010
Location: New Jersey
Views: 1,324
Message 9 of 10

Re: HELP Needed! T400 BLANK | Doesn't TURN ON

May i ask what ended up happening with your labtop? Mine is doing the exact same thing and was wondering what your outcome was.

 

Thanks

varunix
Paper Tape
Posts: 5
Registered: ‎09-15-2009
Location: India
Views: 1,311
Message 10 of 10

Re: HELP Needed! T400 BLANK | Doesn't TURN ON

Very strange thing happened with the laptop, I couldn't take it to the service center due to busy schedule. For  almost 2 weeks I didn't touch it and laptop was blank dead, and a day my younger brother was playing around and all of a sudden pressed power button, and it worked...

It's an accident or magic or something wiered, no idea... later I opened the laptop case to check RAM, HDD connection, battery, or any loose connection but found everything fine...

Its working very fine after that...

What has happened to the laptop is still a mystery?

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