ECS B75H2-M3 Manual

Chapter 2
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B75H2-M3 USER MANUAL
Hard Drive Activity LED
Connecting pins 1 and 3 to a front panel mounted LED provides visual indication that
data is being read from or written to the hard drive. For the LED to function properly,
an IDE drive should be connected to the onboard IDE interface. The LED will also
show activity for devices connected to the SCSI (hard drive activity LED) connector.
Power/Sleep/Message waiting LED
Connecting pins 2 and 4 to a single or dual-color, front panel mounted LED provides
power on/off, sleep, and message waiting indication.
Reset Switch
Supporting the reset function requires connecting pin 5 and 7 to a momentary-con-
tact switch that is normally open. When the switch is closed, the board resets and
runs POST.
Power Switch
Supporting the power on/off function requires connecting pins 6 and 8 to a momen-
tary-contact switch that is normally open. The switch should maintain contact for at
least 50 ms to signal the power supply to switch on or off. The time requirement is
due to internal de-bounce circuitry. After receiving a power on/off signal, at least
two seconds elapses before the power supply recognizes another on/off signal.
4. Front Panel Header
The front panel header (F_PANEL) provides a standard set of switch and LED headers
commonly found on ATX or Micro ATX cases. Refer to the table below for information:

ECS B75H2-M3 Specifications

General

Internal memory	16 GB
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	2
Supported memory types	DDR3-SDRAM
Supported memory clock speeds	1066, 1333, 1600 MHz
Processor socket	LGA 1155 (Socket H2)
Processor manufacturer	Intel
Compatible processor series	Intel Celeron, Intel Pentium
USB 2.0 connectors	4
Power fan connector	Yes
Number of COM connectors	1
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.
Component for	PC
Power source type	ATX
Motherboard chipset	Intel B75
Audio output channels	6.1 channels
Motherboard form factor	micro ATX
RAID levels	0, 1, 10
Supported storage drive interfaces	SATA
On-board graphics card	No
Ethernet interface type	Gigabit Ethernet
Sustainability certificates	ENERGY STAR
BIOS type	AMI
BIOS memory size	64 Mbit

Weight and Dimensions

Depth	210 mm
Width	244 mm