Gigabyte GA-H55M-UD2H Motherboard Review

1. Support for an Intel^®
   Core™ i7 series processor/Intel^®
   Core™ i5 series processor/ Intel^®
   Core™ i3 series processor in the LGA1156 package (Go to GIGABYTE's website for the latest CPU support list.)
2. L3 cache varies with CPU

1. Intel^® H55 Express Chipset

1. 4 x 1.5V DDR3 DIMM sockets supporting up to 16 GB of system memory
2. Dual channel memory architecture
3. Support for DDR3 2200+/1800/1600/1333/1066/800 MHz memory modules
4. Support for non-ECC memory modules
5. Support for Extreme Memory Profile (XMP) memory modules

* To reach DDR3 2200 MHz and above, you are required to use with Intel Core i7/Core i5 CPU without HD Graphics and install a discrete graphics card.

When using Intel Core i5/Core i3/ Pentium CPU with HD Graphics, the maximum memory speed supported is 1666 MHz

* Go to GIGABYTE's website for the latest memory support list.

1. 1 x D-Sub port (Note 2)
2. 1 x DVI-D port (Note 2) (Note 3) (Note 4)
3. 1 x HDMI port(Note 2) (Note 4)
4. 1 x DisplayPort (Note 2) (Note 4)

1. Realtek ALC889 codec
2. High Definition Audio
3. 2/4/5.1/7.1-channel
4. Support for S/PDIF In/Out
5. Support for CD In

1. 1 x RTL8111D chip (10/100/1000 Mbit)

1. *1 x PCI Express x16 slot, running at x16 (PCIEX16) (The PCIEX16 slot conforms to PCI Express 2.0 standard.)
2. *1 x PCI Express x16 slot, running at x4 (PCIEX4)
3. 2 x PCI slots

1. Support for ATI CrossFireX™ technology

1. 5 x SATA 3Gb/s connectors supporting up to 5 SATA 3Gb/s devices
2. 1 x eSATA 3Gb/s connector on the back panel supporting up to 1 SATA 3Gb/s device

JMicron JMB368 chip:

1. 1 x IDE connector supporting ATA-133/100/66/33 and up to 2 IDE devices

iTE IT8720 chip:

1. 1 x floppy disk drive connector supporting up to 1 floppy disk drive

1. Integrated in the Chipset
2. Up to 12 USB 2.0/1.1 ports (6 on the back panel, 6 via the USB brackets con- nected to the internal USB headers)

1. T.I. TSB43AB23 chip
2. Up to 2 IEEE 1394a ports (1 on the back panel, 1 via the IEEE 1394a bracket connected to the internal IEEE 1394a header)

1. 1 x 24-pin ATX main power connector
2. 1 x 4-pin ATX 12V power connector
3. 1 x floppy disk drive connector
4. 1 x IDE connector
5. 5 x SATA 3Gb/s connectors
6. 1 x CPU fan header
7. 1 x system fan headers
8. 1 x front panel header
9. 1 x front panel audio header
10. 1 x CD In connector
11. 1 x S/PDIF In header
12. 1 x S/PDIF Out header
13. 3 x USB 2.0/1.1 headers
14. 1 x IEEE 1394a header
15. 1 x serial port header
16. 1 x clearing CMOS jumper

1. 1 x PS/2 keyboard or PS/2 mouse port
2. 1 x D-Sub port
3. 1 x DVI-D port
4. 1 x HDMI port
5. 1 x DisplayPort
6. 1 x IEEE 1394a port
7. 1 x optical S/PDIF Out connector
8. 6 x USB 2.0/1.1 ports
9. 1 x eSATA 3Gb/s connector
10. 1 x RJ-45 port
11. 6 x audio jacks (Center/Subwoofer Speaker Out/Rear
    Speaker Out/ Side Speaker Out/Line In/Line Out/Microphone)

1. iTE IT8720 chip

1. System voltage detection
2. CPU/System temperature detection
3. CPU/System/Power fan speed detection
4. CPU overheating warning
5. CPU/System/Power fan fail warning
6. CPU/System fan speed control (Note 7)

1. 2 x 64 Mbit flash
2. Use of licensed AWARD BIOS
3. Support for DualBIOS™
4. PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b