Gigabyte GA-P55M-UD4 (rev. 1.0) Realtek Audio Driver 2.51

CPU    
1. Support for an Intel Core i7 series processor/Intel Core i5 series processor in the LGA1156 package
2. L3 cache varies with CPU

Chipset
1. Intel P55 Express Chipset

Memory    
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 2200/1600/1333/1066/800 MHz memory modules
4. Support for non-ECC memory modules
5. Support for Extreme Memory Profile (XMP) memory modules

Audio    
1. Realtek ALC889A codec
2. High Definition Audio
3. 2/4/5.1/7.1-channel
4. Support for Dolby Home Theater
5. Support for S/PDIF In/Out
6. Support for CD In

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

Expansion Slots    
1. 1 x PCI Express x16 slot, running at x16 (PCIEX16)
2. 1 x PCI Express x16 slot, running at x8 (PCIEX8) (The PCIEX16 and PCIEX8 slots conform to PCI Express 2.0 standard.)
3. 1 x PCI Express x4 slot
4. 1 x PCI slot

Multi-Graphics Technology
1. Support for ATI CrossFireX/NVIDIA SLI technology (The PCIEX16 and PCIEX8 slots only.)

Storage Interface
Intel P55 Express Chipset:
1. 5 x SATA 3Gb/s connectors (SATA2_0, SATA2_1, SATA2_2, SATA2_3, SATA2_4) supporting up to 5 SATA 3Gb/s devices
2. 1 x eSATA 3Gb/s connector (eSATA/USB Combo) on the back panel supporting up to 1 SATA 3Gb/s device
3. Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10

GIGABYTE SATA2 chip:
1. 1 x IDE connector supporting ATA-133/100/66/33 and up to 2 IDE devices
2. 2 x SATA 3Gb/s connectors (GSATA2_0, GSATA2_1) supporting up to 2 SATA 3Gb/s devices
3. Support for SATA RAID 0, RAID 1, and JBOD

iTE IT8720 chip:
1. 1 x floppy disk drive connector supporting up to 1 floppy disk drive

USB    
1. Integrated in the Chipset
2. Up to 14 USB 2.0/1.1 ports (10 on the back panel, including 1 eSATA/USB Combo, 4 via the USB brackets connected to the internal USB headers)

IEEE 1394
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)

Internal I/O Connectors    
1. 1 x 24-pin ATX main power connector
2. 1 x 8-pin ATX 12V power connector
3. 1 x floppy disk drive connector
4. 1 x IDE connector
5. 7 x SATA 3Gb/s connectors
6. 1 x CPU fan header
7. 2 x system fan headers
8. 1 x power fan header
9. 1 x front panel header
10. 1 x front panel audio header
11. 1 x CD In connector
12. 1 x S/PDIF In header
13. 1 x S/PDIF Out header
14. 2 x USB 2.0/1.1 headers
15. 1 x IEEE 1394a header
16. 1 x power button
17. 1 x clearing CMOS button
18. 1 x reset button

Back Panel Connectors    
1. 1 x PS/2 keyboard or PS/2 mouse port
2. 1 x coaxial S/PDIF Out connector
3. 1 x optical S/PDIF Out connector
4. 9 x USB 2.0/1.1 ports
5. 1 x eSATA/USB Combo connector
6. 1 x IEEE 1394a port
7. 1 x RJ-45 port
8. 6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/ Side Speaker Out/Line In/Line Out/Microphone)

I/O Controller    
1. iTE IT8720 chip

H/W Monitoring    
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

BIOS    
1. 2 x 16 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

Unique Features    
1. Support for @BIOS
2. Support for Q-Flash
3. Support for Xpress BIOS Rescue
4. Support for Download Center
5. Support for Xpress Install
6. Support for Xpress Recovery2
7. Support for EasyTune
8. Support for Dynamic Energy Saver 2
9. Support for Smart 6
10. Support for Q-Share

Bundle Software    
1. Norton Internet Security (OEM version)

Form Factor    
1. Micro ATX Form Factor; 24.4cm x 24.4cm
Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.