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ThinkPad NotebooksThinkPad; T61 and prior T series plus Other Legacy ThinkPads
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4 Posts

11-30-2008

Cary, NC

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T43 No power - no lights -nothing

2008-11-30, 15:30 PM
T43 was working fine.  Took on trip and never got it out of computer bag.  Brought back home after 4 days and plugged in.  No power.  Lights are not coming on showing power source.  I have tried removing and reinstalling battery and different power cords to different outlets.  Any ideas?
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7651 Posts

11-24-2007

USA

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Re: T43 No power - no lights -nothing

2008-11-30, 15:46 PM

Welcome to the forum!

 

Let's try this: remove the battery, hard and media drives, unplug the AC adapter. Press the "power" button 10 times in a row, holding it down for 10 seconds each time and 30 seconds the last time around.

 

Plug the AC adapter back in and try to power on.

 

Good luck and keep us posted.

Cheers,

George




In daily use: R60F, R500F, T61, T410

Collecting dust: T60

Enjoying retirement: A31p, T42p,

Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W




Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.
.
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4 Posts

11-30-2008

Cary, NC

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Re: T43 No power - no lights -nothing

2008-12-01, 14:27 PM

I tried those steps with no success.  If you can think of anything else, please let me know.  Thanks.

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7651 Posts

11-24-2007

USA

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Re: T43 No power - no lights -nothing

2008-12-01, 18:30 PM

If the machine is still under warranty, send it in. If not, you're likely looking at motherboard replacement.

 

Good luck.

Cheers,

George




In daily use: R60F, R500F, T61, T410

Collecting dust: T60

Enjoying retirement: A31p, T42p,

Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W




Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.
.
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17 Posts

09-12-2008

Framingham (Boston) Massachusetts

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  • Message 5 of 12

Re: T43 No power - no lights -nothing

2008-12-03, 1:11 AM

Have you ascertained that you have voltage at the power adapter connector to the TP?

 

Also, if you have a dock or port replicator, have you tried powering the TP through that and using the dock's power button?

Dave

T42 2373-K1U

Windows XP Pro
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1 Posts

12-03-2008

Brooklyn

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Re: T43 No power - no lights -nothing

2008-12-03, 7:21 AM

i have a T40 with the same problem, i tried your solution and it work, but the problem is now its acting up again i tried your method again and nothing the battery charging light comes on when i connect the charger

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27 Posts

09-08-2008

Ontario

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  • Message 7 of 12

Re: T43 No power - no lights -nothing

2008-12-03, 14:56 PM

If you leave it off for a day or two and it starts up, then fails to startup after sleep/reboot, you are probably suffering from the same system board failure that has been plaguing the T4* series. Lenovo will ask for $1370 (when I asked a few months ago) so you are better to look on Craigslist or eBay (or similar) for a replacement.

 

As an aside, look for a replacement system board with integrated Intel graphics if you can. The problem seems to be with the discreet GPU. Also, don't limit yourself to just T4* series - I got a compatible R-series system board and it's working fine.

 

Sorry for your luck. For what it's worth, you are very much not alone.

 

Madi

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4 Posts

11-30-2008

Cary, NC

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Re: T43 No power - no lights -nothing

2008-12-04, 14:00 PM
I have had it checked out, and it needs a new motherboard!
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1 Posts

01-13-2009

WV

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  • Message 9 of 12

Re: T43 No power - no lights -nothing

2009-01-13, 2:04 AM

wrote:

Welcome to the forum!

 

Let's try this: remove the battery, hard and media drives, unplug the AC adapter. Press the "power" button 10 times in a row, holding it down for 10 seconds each time and 30 seconds the last time around.

 

Plug the AC adapter back in and try to power on.

 

Good luck and keep us posted.


George,

 

I did what you posted for my T61 when it would not power on and showed no signs of power. It worked

and has worked since. Mine is still under warranty so I am wondering should I be concerned that

it did this, or is it something that happens on these T61's???

 

What exactly did you procedure fix or reset??

 

Thanks,

 

Gary

 

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1 Posts

08-22-2009

Bethany Beach, DE

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  • Message 10 of 12

Re: T43 No power - no lights -nothing

2009-08-22, 21:44 PM

I just started having this very same problem on my T61.  I suddenly noted my battery was down to 2% (and I almost always use while plugged in), and poof, it was gone.  No lights, no nothing.  I hoped is was power cord gone bad.  However, I still have the same problem with new cord.  I removed the hard drive, battery, and power and proceeded to press the power key as suggested.  Still no power, no light, no nothing.

 

I have also tried pressing power button 15 times as suggested in another forum.  Nothing.  Unfortunately, mine is no longer under warranty.  Any suggestions?  Could it be the power supply at the computer?  Should I send it back to Lenovo or take it to my local computer repair shop?  Help!!!

 

Gary

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