Asus M5A87 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 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.
M5A87 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
M5A87
Chapter 1: Product introduction1-22

Asus M5A87 Specifications

General

ECC	Yes
Number of memory slots	4
Supported memory types	DDR3-SDRAM
Maximum internal memory	16 GB
Supported memory clock speeds	1066, 1333, 1600, 2000 MHz
System bus rate	5.2 GT/s
Processor socket	Socket AM3
Processor manufacturer	AMD
Compatible processor series	AMD Phenom II X2, AMD Phenom II X3, AMD Phenom II X4, AMD Phenom II X6, AMD Phenom II X8
Number of SATA II connectors	6
Number of Parallel ATA connectors	0
Headphone outputs	3
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.
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Audio chip	Realtek ALC887
Component for	PC
Motherboard chipset	AMD 870 (RX881)
Audio output channels	7.1 channels
Motherboard form factor	ATX
RAID levels	0, 1, 5, 10, JBOD
Supported storage drive interfaces	SATA III
On-board graphics card	-
Parallel processing technology support	Not supported
PCI Express slots version	2.0
Controller interface type	AMD SB850
LAN controller	Realtek RTL8111E
Networking features	Gigabit Ethernet
Ethernet interface type	Fast Ethernet, Gigabit Ethernet
BIOS type	AMI
ACPI version	2.0a
BIOS memory size	16 Mbit

Weight and Dimensions

Depth	213 mm
Width	305 mm