Lenovo laptop won't turn on - Canadian TV, Computing and Home Theatre Forums
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post #1 of 20 (permalink) Old 2009-03-13, 08:58 PM Thread Starter
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Lenovo laptop won't turn on

Battery drained by accident. After the laptop won't power on. Tried another battery and tried without a battery with same result. The laptop will turn on for a second then shut off.

Any ideas?
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post #2 of 20 (permalink) Old 2009-03-13, 10:32 PM
 
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The Bios battery might be very low. Have you tried to just leave it plugged in for 30 mins to 1 hour?

Might be worth a call to Lenovo to see what they can tell you.
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post #3 of 20 (permalink) Old 2009-03-14, 09:25 AM
 
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Sounds to me this may be a system board problem.
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post #4 of 20 (permalink) Old 2009-03-14, 11:12 AM Thread Starter
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I think you might be right about the system board. My first thought was the battery, but it doesn't work even with the battery out and plugged in.

Now I can get a little life to it, but the screen is dark and it just sits there. I have removed the hard drive and I am now backing it up using an enclosure I just bought. Next step is to bring it in. I am hoping it is just the bios that got screwed up and not the mother board.
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post #5 of 20 (permalink) Old 2009-03-14, 12:24 PM
 
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System (Bios battery)

Larry:

Did you check the system battery (bios battery) as mentioned above?

Not totally certain about laptops, but on every desktop motherboard is a little coin-sized battery used to facilitate the startup process. It may have died if the laptop is older or having weird problems.
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post #6 of 20 (permalink) Old 2009-03-15, 12:16 AM
 
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Even if the cmos battery was dead It would not prevent the system from turning on or posting. It would just not keep the time or hardware configuration. I would suspect the System board as well. You could also try and clear the cmos to default settings, Let me know what the model type is and I can look it up for you.

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post #7 of 20 (permalink) Old 2009-03-15, 12:58 AM Thread Starter
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The laptop is a T43. I gave it in to Ottawa Laptops for diagnosis - they don't charge - only if they fix it. If it is the motherboard, I wonder if it pays to fix it or buy a refurbished model - or even a new laptop altogether.
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post #8 of 20 (permalink) Old 2009-03-15, 10:44 AM
 
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Hi Larry

I should have been more clear with the Model type, With IBM and Lenovo to look up anything you need the exact (model type) its on a sticker on the bottom of the laptop. from my Experience If its the MB its not worth fixing as most of there service parts are ridiculously priced.

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post #9 of 20 (permalink) Old 2009-04-04, 06:28 PM Thread Starter
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The model type is 2668-72U

How do you reset the CMOS settings?
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post #10 of 20 (permalink) Old 2009-04-04, 10:13 PM
 
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Larry send me a private msg with your email address and I will send you the hardware maintenance Manual for the T43.

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post #11 of 20 (permalink) Old 2009-04-05, 02:16 PM
 
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I fix Thinkpads every day...take out the battery, leave the AC adapter unplugged, open the lid, hold down the power button for 30 seconds....plug in the AC (doesn't matter if the battery is in) and try and start it...if it does not start, it is the systemboard or AC/DC convertor....

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post #12 of 20 (permalink) Old 2009-04-05, 03:38 PM Thread Starter
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Thanks, but I think it is fried. Before, when I plugged it in, with or without the battery, some lights would come and it would make some funny sounds. Now, nothing happens. Only when I plug in the a/c adapter - I see the battery light flash ever so slightly. Other than that, I can't get it to respond at all.
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post #13 of 20 (permalink) Old 2009-04-06, 11:44 PM Thread Starter
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Ok, now this is strange. After leaving the laptop unplugged and no battery for a few days, I decided to try again. Plugged it in (no battery) and it started up. I had removed the hard drive - so I shut it down, inserted the hard drive and now it won't start up again. What is going on with this thing?
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post #14 of 20 (permalink) Old 2009-04-07, 02:06 PM
 
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Try to Isolate what is causing the system from posting, remove the Hdd and the battery and see if it turns on again ? if it does then the Hdd or the connector on system board may be causing your issue.

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post #15 of 20 (permalink) Old 2009-04-07, 06:11 PM Thread Starter
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I'm convinced this laptop is haunted. From not doing anything it is now working completely. It boots and runs normally. When it first started working the fan was making a horrible sound and it would come up with FAN FAIL and shut off. After a few tried it would boot. Now the fan has stopped making the noise and seems to be running smoothly.

I'm sitting here scratching my head.
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