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35 Posts

06-02-2010

USA

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X201 Yellow USB Port?

2010-06-02, 2:21 AM

Hi, I recently purchased a new x201 and noticed that one of my three USB ports is colored with yellow plastic (like the yellow surrounding the power plug).  Can someone please tell me what this special coloring indicates?  I can't find any literature explaining the port's special color...

 

Thanks.

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492 Posts

05-03-2010

Italy

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Re: X201 Yellow USB Port?

2010-06-02, 2:29 AM

You can charge a cellphone even with the pc turned off, trough the yellow connector.

0 person found this solution to be helpful.

This helped me too

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35 Posts

06-02-2010

USA

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Re: X201 Yellow USB Port?

2010-06-02, 2:38 AM

Nice, that makes the yellow power indicator make sense.... thanks for the quick answer.

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49 Posts

04-18-2012

US

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Re: X201 Yellow USB Port?

2012-05-23, 16:17 PM

it is not true that smartphones is charge while the pc is turned off. it is chargeing only when pc is in sleeping state.

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21115 Posts

12-20-2008

Australia, Melbourne

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Re: X201 Yellow USB Port?

2012-05-23, 16:43 PM
the smartphone can charge while it is off, but you got to select the right setting within the bios menu under config and usb.
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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1 Posts

02-07-2013

USA

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Re: X201 Yellow USB Port?

2013-02-07, 18:26 PM
I have a T420S and I changed the BIOS setting Config--> USB-->'Always ON USB Charge in Off Mode' to 'Enabled'.

After this, when I connect my smart phone on the yellow USB port (laptop powered off), it charges but, requires the laptop to be connected to power source (charging adapter).

Is there a way to charge the smart phone on yellow USB port even when the laptop is not connected to a power source?

 

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1 Posts

03-11-2014

中国

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Re: X201 Yellow USB Port?

2014-03-11, 2:05 AM

Here is the BIOS's USB setup info: The USB ports can charge external devices during low power states(standby, hibernate or power-off). If the system is using a battery, this works only in standby state. Seems no way.

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21115 Posts

12-20-2008

Australia, Melbourne

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Re: X201 Yellow USB Port?

2014-03-11, 12:19 PM
your laptop has to be connected to the AC supply or On, in order for the yellow usb port to provide power.
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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2 Posts

03-21-2014

Czech republic

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Re: X201 Yellow USB Port?

2014-03-21, 9:58 AM

But is this really a problem? The laptop can stay in sleep mode for days, even maybe longer. I never shut off my T530, it just stays in sleep mode and it does not even lose noticeable charge overnight.

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2 Posts

06-09-2018

US

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  • Message 10 of 10

Re: T420 Yellow USB Port? It does more than just charge.....

2018-06-09, 1:21 AM

Hi!

I came looking to find out the significance of the yellow USB port because I had to set up a USB to RS2322 adaptor today, and the only USB port on my T420 that would set up the supposed "plug-n-play" was the yellow port on the back.

 

So what is there about this port that differentiates it from the others, besides its charging capability/

 

Thanks in advance.

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