User Guide

ASUS MAXIMUS VIII EXTREME
1-43
Chapter 1
• For a fully congured system, we recommend that you use a power supply unit
(PSU) that complies with ATX 12 V Specication 2.0 (or later version) and provides a
minimum power of 350 W.
• Do not forget to connect the 4-pin/8-pin EATX12 V power plug. Otherwise, the system
will not boot.
• Connect the 4-pin EZ_PLUG power plugs to ensure sufcient power when you install
multiple graphics cards.
• We recommend that you use a PSU with a higher power output when conguring a
system with more power-consuming devices. The system may become unstable or
may not boot up if the power is inadequate.
• If you want to use two or more high-end PCIe x16 cards, use a PSU with 1000W
power or above to ensure the system stability.
• 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.
8. ATX power connectors (24-pin EATXPWR; 8-pin EATX12V_1; 4-pin EATX12V_2;
4-pin EZ_PLUG)
These connectors are for ATX power supply plugs. The power supply plugs are
designed to t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.