Asus M4A78LT-M LX User Manual

2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
These connectors are for an ATX power supply. The plugs from the power supply are
designed to t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.
• We recommend that you use an ATX 12V Specication 2.0-compliant power supply unit
(PSU) with a minimum of 300W power rating. This PSU type has 24-pin and 4-pin power
plugs.
• If you intend to use a PSU with 20-pin and 4-pin power plugs, ensure that the 20-pin
power plug can provide at least 15 A on +12 V and that the PSU has a minimum power
rating of 300W. The system may become unstable or may not boot up if the power is
inadequate.
• DO NOT forget to connect the 4-pin ATX12V power plug. Otherwise, the system will not
boot up.
• We recommend that you use a PSU with higher power output when conguring a
system with more power-consuming devices or when you intend to install additional
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.
M4A78LT-M LX
M4A78LT-M LX ATX power connectors
EATXPWR
PIN 1
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
GND
+5 Volts
GND
+3 Volts
+3 Volts
ATX12V
PIN 1
+12V DC +12V DC
GND GND
Chapter 1: Product introduction1-22

Asus M4A78LT-M LX Specifications

General

ECC	Yes
Memory channels	Dual-channel
Number of memory slots	2
Maximum internal memory	8 GB
Supported memory clock speeds	1066, 1333, 1600, 1866 MHz
Processor socket	Socket AM3
Processor manufacturer	AMD
Compatible processor series	AMD Phenom II X2, AMD Phenom II X4, AMD Phenom II X6
USB 2.0 connectors	3
Number of SATA connectors	6
Number of Parallel ATA connectors	0
USB 2.0 ports quantity	4
Audio chip	Realtek ALC887
Component for	PC
Power source type	ATX
Motherboard chipset	AMD 760G
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Motherboard southbridge	AMD SB710
Compatible operating systems	DOS Windows XP Windows XP 64bit Windows Vista 32bit Wnindows Vista 64bit Windows 7 Windows 7 64bit
Graphics card	Radeon 3000
Maximum graphics card memory	1024 MB
Parallel processing technology support	Hybrid CrossFireX
RAID levels	0, 1, 10, JBOD
Controller interface type	SATA 3.0 Gb/s
Cables included	SATA
Bundled software	ASUS PC Probe II ASUS Update
Ethernet interface type	Gigabit Ethernet
BIOS type	AMI
ACPI version	2.0a
BIOS memory size	64 Mbit

Weight and Dimensions

Depth	203 mm
Width	244 mm