Power Supply Requirements - Asus MAXIMUS EXTREME User Manual

• For a fully configured system, we recommend that you use a power supply
unit (PSU) that complies with ATX 12 V Specification 2.0 (or later version)
and provides a minimum power of 550 W.
• Do not forget to connect the 4-pin/8pin EATX12V power plug; otherwise,
the system will not boot.
• Use of a PSU with a higher power output is recommended when
configuring a system with more power-consuming devices. The system
may become unstable or may not boot up if the power is inadequate.
• If you are uncertain about the minimum power supply requirement for your
system, refer to the Recommended Power Supply Wattage Calculator
at http://support.asus.com/PowerSupplyCalculator/PSCalculator.
aspx?SLanguage=en-us for details.
• If you want to use two high-end PCI Express x16 cards, use a PSU with
500W to 600W power or above to ensure the system stability.

Power supply requirements

Heavy Loading
CPU SMF 3.2XE
DDR533 256MB*4
PCI-E VGA Nvidia 7950GTX*2
SATA-HD 6
ESATA-HD 2
IDE-HD 1
CD-ROM 1
USB 2
PCI-E 1X 0
PCI 0
+12V-
V2
(4 PIN)
Io_max 17
(A)
Io_rms 12.35
(A)
Vout (V) 11.93
Po_max 202.81
(W)
ASUS Maximus Extreme
+12V- +5V +3.3V
V1
(24PIN)
11.4 5.66 9.18
7.68 4.42 8.52
11.9 5.022 3.316
135.66 28.42 30.44
(continued on the next page)
VGA HDD HDD
+12V +12V +5V
15.76 7.6 7.96
10.74 3.32 5.26
11.42 11.95
179.98 90.82 4.993 5.054 678.18
Total
PSU
Po_
0.548
max
(W)
0.413
2-35