Asus H81M-K User Manual

ASUS H81M-K
1-17
• 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.
• 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.
5. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
These connectors are for ATX power supply plugs. The power supply plugs are
designed to t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.
H81M-K
H81M-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
6. Speaker connector (4-pin SPEAKER)
The 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.
H81M-K
H81M-K Speaker Out Connector
+5V GND GND Speaker Out
SPEAKER
PIN 1

Asus H81M-K Specifications

General

Non-ECC	Yes
Flash memory	64 MB
Memory channels	Dual-channel
Memory slots type	DIMM
Supported memory types	DDR3-SDRAM
Maximum internal memory	16 GB
Supported memory clock speeds	1066, 1333, 1600 MHz
Processor socket	LGA 1150 (Socket H3)
Processor manufacturer	Intel
Compatible processor series	Intel Celeron, Intel Pentium
USB 2.0 connectors	4
Number of EATX power connectors	1
USB 3.2 Gen 1 (3.1 Gen 1) connectors	0
Supported storage drive interfaces	SATA
USB 2.0 ports quantity	2
LAN controller	Realtek 8111G
Ethernet interface type	Gigabit Ethernet
Audio chip	Realtek ALC887
Component for	PC
Power source type	ATX
Motherboard chipset	Intel® H81
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Maximum resolution	1920 x 1200 pixels
Maximum graphics card memory	1024 MB
Parallel processing technology support	Not supported
BIOS type	UEFI AMI

Weight and Dimensions

Depth	175 mm
Width	226 mm