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20 Posts

11-04-2009

California

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  • Message 1 of 6

Battery charging noise and lcd

2009-11-09, 5:29 AM

Hi,

 

I have a T400 and I have 3 quick question:

 

1. everytime i plug in the charger, it makes a loud beep noise...is there a way to turn this feature off? it gets annoying in library when all of a sudden it becomes loud

 

2. is it possible to tell if my screen is LED or a CCFL? I bought my laptop off a gentleman on craigs...but its brand new, never open with warranty. So I am not sure if its LED or not. 

 

3. Who makes the screen on the T400? Mine computer was manufactured on 09/09 if that helps.

 

 

Thanks! 

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21115 Posts

12-20-2008

Australia, Melbourne

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Re: Battery charging noise and lcd

2009-11-09, 5:51 AM

1. Go into your bios, under config -> alarm, you can switch off the beeps by disabling each one of them.

 

2. download everest and it should tell you the p/n of your screen, then google the p/n and it should tell you whether it is LED or CCFL.

 

3. Everest should tell you that, it is usually LG or Samsung...

Regards,

Jin Li

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

I am a volunteer, and not a paid staff of Lenovo or Microsoft
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21115 Posts

12-20-2008

Australia, Melbourne

20622 Signins

444194 Page Views

  • Posts: 21115
  • Registered: ‎12-20-2008
  • Location: Australia, Melbourne
  • Views: 444194
  • Message 2 of 6

Re: Battery charging noise and lcd

2009-11-09, 5:51 AM

1. Go into your bios, under config -> alarm, you can switch off the beeps by disabling each one of them.

 

2. download everest and it should tell you the p/n of your screen, then google the p/n and it should tell you whether it is LED or CCFL.

 

3. Everest should tell you that, it is usually LG or Samsung...

Regards,

Jin Li

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

I am a volunteer, and not a paid staff of Lenovo or Microsoft

0 person found this solution to be helpful.

This helped me too

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20 Posts

11-04-2009

California

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  • Posts: 20
  • Registered: ‎11-04-2009
  • Location: California
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  • Message 3 of 6

Re: Battery charging noise and lcd

2009-11-09, 7:23 AM

thanks for the info.

 

apparently, my screen isnt LG or Samsung...its a company called AUO.

 

my screen name is :  

 

B141EW05 V3

 

and the Monitor ID is LEN4035.

 

How is AUO? I never heard of them..

 

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21 Posts

11-06-2009

Edmonton, Alberta, Canada

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  • Location: Edmonton, Alberta, Canada
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  • Message 4 of 6

Re: Battery charging noise and lcd

2009-11-09, 8:58 AM

AU Optronics Corp. (AUO) is the largest and a global leading manufacturer of thin film transistor liquid crystal display panels (TFT-LCD) in Taiwan, China.

As I know, their panels may be not as good as those from Samsung. However, a Samsung monitor does not mean it is produced from their own factory.

Anyway, AUO should be not bad.

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20 Posts

11-04-2009

California

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  • Posts: 20
  • Registered: ‎11-04-2009
  • Location: California
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  • Message 5 of 6

Re: Battery charging noise and lcd

2009-11-09, 16:03 PM

thanks!

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1 Posts

03-12-2010

united kingdom

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  • Message 6 of 6

Re: Battery charging noise and lcd

2010-03-12, 22:29 PM

Hi, I have a new Lenovo G550 and when it is charging the battery light flickers and it also makes a faint clicking sound in time with the light. Can you shed any light on if this is normal?

 

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