IOH:
X58: 24.1 W
MCH:
X48: 26.5 W, 12.3 W idle, with 333 MHz FSB
P45: 22 W, 9 W idle, with 333 MHz FSB
G45: 24 W, 9 W idle, with 333 MHz FSB
P43: 22 W, 9 W idle, with 333 MHz FSB
G43: 24 W, 9 W idle, with 333 MHz FSB
X38: 26.5 W, 12.3 W idle, with 333 MHz FSB
P35: 16 W, 5.9 W idle, with 333 MHz FSB
G35: 28 W, 11 W idle, with 333 MHz FSB
Q35: 15 W, 6.5 W idle, with 333 MHz FSB
G33: 14.5 W, 5.75 W, with 333 MHz FSB
P31: 15.5 W, 7.6 W idle, with 266 MHz FSB
G31: 15.5 W, 7.4 W idle, with 266 MHz FSB
G965: 28 W, 13 W idle
Q963: 28 W, 13 W idle
Q965: 28 W, 11 W idle
P965: 19 W, 10 W idle
975X: 13.5 W
955X: 13.5 W
945G: 22.2 W
945GZ: 22.2 W
945P: 15.2 W
945PL: 15.2 W
925XE: 13.3 W
925X: 12.3 W
915G: 16.3 W
915GV: 16.3 W
915GL: 16.3 W
910GL: 16.3 W
875P: 10.1 W
865G: 12.9 W
865GV: 12.6 W
865PE: 11.3 W
865P: 10.3 W
845GE: 6.3 W
845PE: 5.6 W
ICH:
ICH10: 4.5 W
ICH9: 4.0 W
ICH8: 4.1 W
ICH7: 3.3 W
ICH6: 3.8 W
ICH5: 2.4 W
ICH4: 2.2 W