[ltp] T61 power connector (male part): where to get?

James Knott linux-thinkpad@linux-thinkpad.org
Sat, 20 Jun 2009 16:36:08 -0400


Yves Dorfsman wrote:
> Richard Neill wrote:
>>
>>
>> P.S. Does anyone know why the new supplies are higher voltage than
>> the older ones? I thought that the newer CPUs ran on *lower* voltages.
>>
>
> I don't know for a fact, but I have assumed that since they are
> drawing more power (overall wattage), bumping up the voltage enabled
> them not to increase the size of the cable.
>
It's to increase the overall efficiency of the power system.  Lower
voltage means more current and resistance losses.  It also reduces the
efficiency of the DC - DC converters.