Asus M4A78-E - Manual (Page 54)

2-34 Chapter 2: Hardware information
Chapter 2
• 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 600 W.
• Do not forget to connect the 4-pin EATX +12 V power plug. Otherwise, the system will
not boot.
• We recommend that you use a PSU with 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 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.
• The ATX 12 V Specification 2.0-compliant (1000W) PSU has been tested to support
the motherboard power requirements with the following configuration:
CPU: AMD Phenom 9950
Memory: 1024 MB DDR2 (x4)
Graphics card: PCI Express x16 Radeon 4870 X2 (x2)
Serial ATA device: SATA hard disk drive (x2)
Optical drive: DVD-RW (x1)
11. ATX power connectors (24-pin EATXPWR; 4-pin EATX12V)
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.