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Installing the Motherboard

Checking Jumper Settings

The following illustration shows the location of the motherboard jumpers. Pin 1 is

labeled.

Jumper Settings

To avoid the system instability after clearing CMOS, we recommend

users to enter the main BIOS setting page to “Load Default Settings”

and then “Save and Exit Setup”.

Jumper

Type

Description Setting (default)

CLR_CMOS

3-pin

Clear CMOS

1-2: NORMAL

2-3: CLEAR

Before clearing the

CMOS, make sure to

turn off the system.

CLR_CMOS

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ECS H55H-M Specifications

General

Number of memory slots	2
Maximum internal memory	8 GB
Processor socket	LGA 1156 (Socket H)
Processor manufacturer	Intel
S/PDIF out connector	Yes
Number of SATA connectors	6
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.
Ethernet LAN (RJ-45) ports	1
Firewire (IEEE 1394) ports	0
Audio chip	VIA VT1705
Power source type	ATX
Audio output channels	5.1 channels
Motherboard form factor	micro ATX
LAN controller	Atheros AR8131M
Networking features	Gigabit Ethernet
ACPI version	3.0
BIOS memory size	16 Mbit