Asus A55BM-K User Manual

1-16
Chapter 1: Product introduction
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 ATX +12V 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.
A55BM-K
A55BM-K 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

Asus A55BM-K Specifications

General

Non-ECC	Yes
Memory channels	Dual-channel
Memory slots type	DIMM
Supported memory types	DDR3-SDRAM
Maximum internal memory	32 GB
Supported memory clock speeds	1333, 1600, 1866, 2133, 2400 MHz
Processor socket	Socket FM2+
Processor manufacturer	AMD
Compatible processor series	AMD A
USB 2.0 connectors	2
Number of COM connectors	1
Number of SATA II connectors	4
USB 3.2 Gen 1 (3.1 Gen 1) connectors	0
RAID levels	0, 1, 10, JBOD
Supported storage drive interfaces	SATA II, SATA III
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
LAN controller	Realtek 8111G
Ethernet interface type	Gigabit Ethernet
Audio chip	Realtek ALC887-VD
Component for	-
Power source type	ATX
Motherboard chipset	AMD A55 FCH
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Maximum resolution	2560 x 1600 pixels
Maximum graphics card memory	2048 MB
BIOS type	UEFI AMI
ACPI version	4.0a
BIOS memory size	64 Mbit
Cables included	SATA

Weight and Dimensions

Depth	183 mm
Width	226 mm