English Community

ThinkPad NotebooksThinkPad: T400 / T500 and newer T series Laptops
All Forum Topics
Options

3 Posts

09-15-2020

AR

3 Signins

15 Page Views

  • Posts: 3
  • Registered: ‎09-15-2020
  • Location: AR
  • Views: 15
  • Message 1 of 4

Lenovo T430 only Turns on after BIOS reset (CMOS battery removed)

2020-09-15, 2:18 AM

Hi all!

I have a T430 who only boot if i clear the BIOS,

Steps i do:

 

1) Disconnect CMOS battery for a few seconds. Connect again.
2) Computer turns ON, ask me for configure date/time and the OS starts normally.


I can use the computer without problem until i turn it off.


When i turn it off, the computer wont turn ON again until i disconnect the AC adapter, and repeat the step 1 of disconnecting CMOS battery.

 

What i decide to do temporary is to remove permanently the CMOS battery so i dont have to disconnect/connect this every time i need to turn on the computer.

 

NOTE: Without the CMOS battery, when i turn the computer off, and i try to turn it ON, the computer dont turn ON. I have to unplug the AC adapter, plug again and then the computer

starts without any problem until i turn it off and i have to repeat this.

 

Looks like the computer only turns ON when the BIOS is erased (because of the lack of CMOS battery and disconecting the AC Adapter).

 

Any ideas?

Reply
Options

1016 Posts

03-11-2020

NO

122 Signins

5656 Page Views

  • Posts: 1016
  • Registered: ‎03-11-2020
  • Location: NO
  • Views: 5656
  • Message 2 of 4

Re:Lenovo T430 Turn on after CMOS Battery removal just 1 time.

2020-09-15, 9:23 AM

Hi javsregz,

 

 

"After setting again Bios settings, the OS starts normally."

 

What BIOS settings are you changing ?

 

Regards

 

Voithos



Did someone help you today? Press the thumbs-up icon below to thank them with a Kudos!!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.

Please don't ask me questions by Personal Message; questions belong in the forums.

Reply
Options

3 Posts

09-15-2020

AR

3 Signins

15 Page Views

  • Posts: 3
  • Registered: ‎09-15-2020
  • Location: AR
  • Views: 15
  • Message 3 of 4

Re:Lenovo T430 Turn on after CMOS Battery removal just 1 time.

2020-09-15, 10:17 AM

Hi! Just basics like Time and Date.

 

Cheers!

Reply
Options

3 Posts

09-15-2020

AR

3 Signins

15 Page Views

  • Posts: 3
  • Registered: ‎09-15-2020
  • Location: AR
  • Views: 15
  • Message 4 of 4

Re:Lenovo T430 only Turns on after BIOS reset (CMOS battery removed)

2020-09-16, 0:37 AM

I edit the initial message with a more clear description of what happens and the steps i do. Thanks.

Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save

X

Delete