Asus H81M-K User Manual

1-16
Chapter 1: Product introduction
3. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN)
Connect the fan cables to the fan connectors on the motherboard, ensuring that the
black wire of each cable matches the ground pin of the connector.
Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside
the system may damage the motherboard components. These are not jumpers! Do not
place jumper caps on the fan connectors! The CPU_FAN connector supports a CPU fan of
maximum 1A (12 W) fan power.
CPU_FAN
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
H81M-K
H81M-K CPU fan connector
CHA_FAN
VCC
CHA FAN IN
CHA FAN PWR
GND
4. USB 2.0 connectors (10-1 pin USB78, USB56)
These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with USB 2.0 specications and supports up to
480Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
H81M-K
USB78
PIN 1
USB+5V USB_P7- USB_P7+ GND NC
USB+5V
USB_P8-
USB_P8+
GND
USB56
PIN 1
USB+5V USB_P5- USB_P5+ GND NC
USB+5V
USB_P6-
USB_P6+
GND
H81M-K USB2.0 connectors
Only the 4-pin CPU fan support the ASUS Fan Xpert feature.

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