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- Jan 31, 2016
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In my mission to reduce the wii's power consumption to the absolute minimum, I have done some tests as to the absolute minimum voltage that the wii can run on when using custom regulators. The hope is testing these chips at different voltages will show what voltage yields the highest efficiency.
The circumstances:
RVL 40 board with stock regulators removed, and 3.3v and standby lines shorted together
Variable output linear benchtop power supplies hooked up to the 3.3v, 1v and 1.15v lines
x1 1000uf capacitor attached to 3.3v line / gnd
x3 470uf capacitors attached to 1v / gnd
x1 2200uf capacitor attached to 1.15v / gnd
All stock chips are in place
composite video out
wifi and bluetooth modules present
disc drive NOT present
SD card in slot
gamecube controller connected to port 1
I have the console modded to auto-boot into wiiflow, as that seems to require just slightly more current than running actual games. This will not only show what works, but what could be potentially a "safe" voltage to run at.
3.3v Results:
Console cannot maintain voltages below 2.98. Will reboot
3.0v= .75a average, .765 max
3.3v= .76a average, .775 max
4.0v= .78a average, .795 max
The circumstances:
RVL 40 board with stock regulators removed, and 3.3v and standby lines shorted together
Variable output linear benchtop power supplies hooked up to the 3.3v, 1v and 1.15v lines
x1 1000uf capacitor attached to 3.3v line / gnd
x3 470uf capacitors attached to 1v / gnd
x1 2200uf capacitor attached to 1.15v / gnd
All stock chips are in place
composite video out
wifi and bluetooth modules present
disc drive NOT present
SD card in slot
gamecube controller connected to port 1
I have the console modded to auto-boot into wiiflow, as that seems to require just slightly more current than running actual games. This will not only show what works, but what could be potentially a "safe" voltage to run at.
3.3v Results:
Console cannot maintain voltages below 2.98. Will reboot
3.0v= .75a average, .765 max
3.3v= .76a average, .775 max
4.0v= .78a average, .795 max