[ltp] Re: WARNING: Lenovo ThinkPads and 65W power supplies

Pedro Ribeiro linux-thinkpad@linux-thinkpad.org
Sat, 6 Nov 2010 14:39:37 +0000


2010/11/6 Csillag Tamas <cstamas@digitus.itk.ppke.hu>:
> On Fri, Nov 05, 2010 at 01:42:45PM -0700, Mario Theodoridis wrote:
>> On Friday, 5. 11 2010 07:18:15 Ben Pfaff wrote:
>> > Laurent <pumpkin@gmx.de> writes:
>> > >> This is a warning to owners of any Lenovo ThinkPads that own 65W AC
>> > >> power adaptors.
>> > >
>> > > Some new intel-GPU thinkpads come with a 65W PSU by default. Are you=
 sure
>> > > the problems (lower max. frequency w/o batt) applies to them as well=
?
>> >
>> > My X201 is labeled 20V, 3.25V - 4.5V. =A0Multiplying, that's 65W - 90W=
.
>> > It came with only a 65W power supply. =A0If it can really consume 90W,
>> > then the 65W power supply is inadequate for that.
>>
>> The 90W supply that came with my W500 claims 20V 4.5A
>
> It is the same for T500. It is also clearly labelled as 90W on the
> first line.
>
> Regards,
> =A0cstamas
> --
> CSILLAG Tamas (cstamas) - http://digitus.itk.ppke.hu/~cstamas
>
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My T400 (P8400 and intel GPU) came with a 65W power adapter.

It never draws more than 45W in full load. But I guess if I'm charging
the battery and working at full load it can probably go over 65W.

Thanks for the warning. The only problem with this is that 90W power
supplies seem to be unrealiable...

Regards,
Pedro