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12 Posts

02-15-2016

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P50 and ThinkPad Thunderbolt 3 Dock

2017-10-01, 13:14 PM

Is the new ThinkPad Thunderbolt 3 Dock compatible with P50?

 

Dock details page (https://pcsupport.lenovo.com/cz/en/solutions/acc100356) only list P51s, but not P50. But P50 claims support for Thunderbold 3.

 

If yes,  can I connect Ethernet LAN over the dock? And what driver I need to install?

 

 

 

 

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12 Posts

02-15-2016

CZ

26 Signins

202 Page Views

  • Posts: 12
  • Registered: ‎02-15-2016
  • Location: CZ
  • Views: 202
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Re: P50 and ThinkPad Thunderbolt 3 Dock

2017-11-28, 8:40 AM

I found out that the ThinkPad Thunderbolt 3 Dock is not able to power or charge ThinkPad P50 otherwise it works :-( Lenovo this is shame.

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3486 Posts

12-02-2007

US

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Re: P50 and ThinkPad Thunderbolt 3 Dock

2017-11-28, 9:22 AM

Hello,


The ThinkPad P50 uses either a 170 Watt or a 230 Watt adapter.  The Thunderbolt port actually makes use of USB Power Delivery, and that supplies a maximum of 100 Watts of power.

 

If you want a ThinkPad that charges over its Thunderbolt 3/USB Type-C connector, you should look at one of the models like the P51s or P40 Yoga, which use a 65 Watt power supply. 

If you want a ThinkPad which uses Intel Xeon CPUs, has four SO-DIMM modules for up to 64GB of RAM, multiple drive bays, etc., you'll need to purchase a model from the P50/P51 or P70/P71 series, and those use 170 or 230 watts, respectively.

 

Lenovo does a lot of cool stuff with power supplies, battery energy density, cooling systems and so forth, but, unfortunately, this is limitation of the USB Power Delivery specification itself.  It's possible that the USB Implementers Forum will update the standard in the future, but that is a standard which has to be ratified by them; Lenovo just can't make a non-compatible device and still sell it as being Thunderbolt or USB compatible.

 

Regards,

 

Aryeh Goretsky

 



I am a volunteer and neither a Lenovo nor a Microsoft employee.

L380 YogaP72 (20MB-*)P50 (20EN-*)S230u (3347-4HU)T23 (2648-LU7)T42 (2378-R4U)T43p (2678-H7U)T61p (6459-CTO)W510 (4318-CTO)W530 (2441-4R3)W530 (2441-4R3)X100e (3508-CTO)X120e (0596-CTO)X220 (4286-CTO)X250 (20CM-*)Yoga 370

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