Gigabyte GA-Z77X-UD3H User Manual

- 22 -Hardware Installation
1-8 Onboard Buttons, Switches, and LEDs
Quick Buttons
This motherboard has 3 quick buttons: power button, reset button and clearing CMOS button. The power button
and reset button allow users to quickly turn on/off or reset the computer in an open-case environment when they
want to change hardware components or conduct hardware testing. Use this button to clear the CMOS values

PW_SW: Power button
RST_SW: Reset button
CMOS_SW: Clear CMOS Button
Always turn off your computer and unplug the power cord from the power outlet before clearing •
the CMOS values.
After system restart, go to BIOS Setup to load factory defaults (select • Load Optimized
Defaults

BIOS Switch and BIOS LED Indicators
The BIOS switch (SW4) allows users to easily select a different BIOS for boot up or overclocking, helping to reduce
BIOS failure during overclocking. The LED indicator (MBIOS_LED/BBIOS_LED) shows which BIOS is active.
BIOS Switch:
MBIOS_LED (The main BIOS is active)
BBIOS_LED (The backup BIOS is active)
BIOS LED Indicators:
SW4
3: Backup BIOS (Boot from the backup BIOS)
1: Main BIOS (Boot from the main BIOS)

Gigabyte GA-Z77X-UD3H Specifications

General

ECC	No
Non-ECC	Yes
Memory voltage	1.5 V
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	4
Supported memory types	DDR3-SDRAM
Maximum internal memory	32 GB
Supported memory clock speeds	1066, 1333, 1600 MHz
Supported memory module capacities	16GB, 1GB, 2GB, 4GB, 8GB
System bus rate	5 GT/s
Processor socket	LGA 1155 (Socket H2)
Processor manufacturer	Intel
Compatible processor series	Intel Core i3, Intel Core i5, Intel Core i7
Maximum number of SMP processors	1
USB 2.0 connectors	3
Number of SATA III connectors	2
Number of Parallel ATA connectors	0
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	6
Audio chip	VIA VT2021
Cooling type	Passive
Component for	PC
Motherboard chipset	Intel Z77
PC health monitoring	CPU, FAN, Temperature
Audio output channels	7.1 channels
Motherboard form factor	ATX
Compatible operating systems	Windows 7/XP
RAID levels	0, 1, 5, 10
Supported storage drive interfaces	SATA II, SATA III
Cables included	SATA
Graphics card	HD Graphics
OpenGL version	3.2
DirectX version	11
Maximum graphics card memory	1696 MB
Parallel processing technology support	2-Way CrossFireX, 2-Way SLI, LucidLogix Virtu
PCI Express slots version	2.0, 3.0
PCI Express configurations	1x4, 1x8, 1x16
Controller 2nd interface type	Marvell 88SE9172
LAN controller	-
Wi-Fi standards	Not supported
Networking features	10/100/1000 Mbit/sec
Ethernet interface type	Gigabit Ethernet
BIOS type	EFI AMI
ACPI version	2.0a
BIOS memory size	64 Mbit

Weight and Dimensions

Depth	244 mm
Width	305 mm