GA-P55-UD3 (rev. 1.0)

Intel®  P55 Chipset
  • Home theater quality 8-channel High Definition Audio
  • Compatible with Windows 7 that delivers the best operation experience
  • Patented GIGABYTE DualBIOS™ technology delivering highest level failure protection
  • Support Intel® Core™ i7/ Core™ i5 processors with LGA 1156 socket
  • Support ATI CrossFireX for ultimate graphics performance
  • 3X USB power delivery for greater compatibility and extra power for USB devices
  • Features high speed Gigabit Ethernet
  • AutoGreen technology Greening your PC via Bluetooth cellphone
  • Leading quality standard of Ultra Durable™ 3 technology with 2oz copper PCB design
  • Innovative Smart 6 technology for Smarter PC management
  • Dynamic Energy Saver™ 2 technology enables best energy efficiency
  • XHD technology accelerating hard drive performance with ease
  • Unique On/Off Charge delivers the best recharging capability to iPad, iPhone and iPod Touch
  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® P55 Express Chipset
  1. 4 x 1.5V DDR3 DIMM sockets supporting up to 16 GB of system memory
  2. Dual channel memory architecture
  3. DDR3 2200/1600/1333/1066/800 MHz
  4. Support for non-ECC memory modules
  5. Support for Extreme Memory Profile (XMP) memory modules
  1. Realtek ALC888 codec
  2. High Definition Audio
  3. 2/4/5.1/7.1-channel
  4. Support for CD In
  5. Support for SPDIF In/Out
  1. 1 x RTL8111D chip (10/100/1000 Mbit)
Expansion Slots
  1. 1 x PCI Express x16 slot, running at x4 (PCIEX4)
  2. 1 x PCI Express x16 slot, running at x16 (PCIEX16)

    (The PCIEX16 slot conforms to PCI Express 2.0 standard.)
  3. 2 x PCI Express x1
  4. 3 x PCI
Multi Graphics Technology
  1. Support for ATI CrossFireX™ technology
Storage Interface Intel® P55 Express Chipset:
  1. 6 x SATA 3Gb/s connectors (SATA2_0, SATA2_1, SATA2_2, SATA2_3, SATA2_4, SATA2_5) supporting up to 6 SATA 3Gb/s devices
  2. Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10
  1. 1 x IDE connector supporting ATA-133/100/66/33 and up to 2 IDE devices
  2. Support for SATA RAID 0, RAID 1 and JBOD
  3. 2 x SATA 3Gb/s connectors (GSATA2_0, GSATA2_1) supporting up to 2 SATA 3Gb/s devices
iTE IT8720 chip:
  1. 1 x floppy disk drive connector supporting up to 1 floppy disk drive
USB Chipset:
  1. Integrated in the Chipset
  1. Up to 14 USB 2.0/1.1 ports (10 on the back panel, 4 via the USB brackets connected to the internal USB headers)
Internal I/O Connectors
  1. 1 x LPT connector
  2. 2 x system fan headers
  3. 1 x front audio header
  4. 8 x SATA 3Gb/s
  5. 1 x clearing CMOS jumper
  6. 2 x USB 2.0/1.1
  7. 1 x COM
  8. 1 x CD in
  9. 1 x 24-pin ATX power connector
  10. 1 x SPDIF out
  11. 1 x floppy disk drive connector
  12. 1 x CPU fan connector
  13. 1 x front panel connector
  14. 1 x IDE
  15. 1 x power fan connector
  16. 1 x 8-pin ATX 12V power connector
  17. 1 x SPDIF in
Back Panel Connectors
  1. 10 x USB 2.0/1.1
  2. 1 x PS/2 mouse port
  3. 1 x PS/2 keyboard port
  4. 1 x RJ45 LAN
  5. 6 x audio ports (Line In / Line Out / MIC In / Surround Speaker Out(Rear Speaker Out) / Center/Subwoofer Speaker Out / Side Speaker Out)
  6. 1 x SPDIF out (coaxial)
  7. 1 x SPDIF out (optical)
I/O Controller
  1. iTE IT8720
H/W Monitoring
  1. CPU/System fan speed control
  2. CPU/System temperature detection
  3. System voltage detection
  4. CPU overheating warning
  5. CPU/System/Power fan speed detection
  6. CPU/System/Power fan failure warning
  1. Supports DualBIOS™
  2. PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b
  3. 2 x 16 Mbit flash ROM
  4. Award BIOS
Unique Features
  1. Support for Q-Share
  2. Support for Dynamic Energy Saver™ 2
  3. Support for Smart 6™
  4. Q-Flash™
  5. Download Center
  6. Xpress™ Install
  7. Xpress™ Recovery 2
  8. Supports EasyTune
  9. @BIOS™
  10. Xpress™ BIOS Rescue
Bundle Software
  1. Norton Internet Security (OEM version)
Operating System
  1. Support for Microsoft® Windows 7/Vista/XP
Form Factor
  1. ATX
  2. 305mm x 244mm
  1. Most hardware/software vendors may no longer offer drivers to support Win9X/ME/2000/XP. If drivers are available from the vendors, we will update them on the GIGABYTE website.
  2. Due to different Linux support condition provided by chipset vendors, please download Linux driver from chipset vendors' website or 3rd party website.
* The entire materials provided herein are for reference only. GIGABYTE reserves the right to modify or revise the content at anytime without prior notice.
* Advertised performance is based on maximum theoretical interface values from respective Chipset vendors or organization who defined the interface specification. Actual performance may vary by system configuration.
* All trademarks and logos are the properties of their respective holders.
* Due to standard PC architecture, a certain amount of memory is reserved for system usage and therefore the actual memory size is less than the stated amount.