Asus Z87-WS User Guide - Page 53

9. EATX power connectors (24-pin EATXPWR; 8-pin EATX12V1, 8-pin EATX12V; 6-pin EATX12V_1) These connectors are for ATX power supply plugs. The power supply plugs are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit. • 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 350 W. • DO NOT forget to connect the 4-pin/8-pin EATX12 V power plug. Otherwise, the system will not boot. • We recommend you use an EATX12V power connector to increase power efficiency when you overclock the CPU. • We recommend that you use a PSU with a higher power output 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 want to use two or more high-end PCI Express x16 cards, use a PSU with 1000W power or above to ensure the system stability. • We recommend you connect an EATX 12V_1 cable to increase power efficiency when you plug in high-end PCI Express x16 cards. • 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=enus ASUS Z87-WS 1-37 Chapter 1