I did not use a physical power meter, but I typed the command show environment on two VG350 and thats what you might be looking for:
SYSTEM POWER
===============
Motherboard Components Power consumption = 110.9 WPower consumption =
NM/SM slot 2 40.7 WPower consumption =
NM/SM slot 4 42.0 W
Total System Power consumption is: 193.6 W
SYSTEM POWER
===============
Motherboard Components Power consumption = 138.7 WPower consumption =
NM/SM slot 2 40.3 WPower consumption =
NM/SM slot 4 39.5 W
Total System Power consumption is: 218.5 W