Gigabyte GA-P55-USB3

CPU
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.)
L3 cache varies with CPU
Chipset
Intel® P55 Express Chipset
Memory
4 x 1.5V DDR3 DIMM sockets supporting up to 16 GB of system memory (Note 1)
Dual channel memory architecture
Support for DDR3 2200/1333/1066/800 MHz memory modules
Support for non-ECC memory modules
Support for Extreme Memory Profile (XMP) memory modules
(Go to GIGABYTE's website for the latest memory support list.)
Audio
Realtek ALC888 codec
High Definition Audio
2/4/5.1/7.1-channel
Support for S/PDIF In/Out
Support for CD In
LAN
1 x RTL8111D chip (10/100/1000 Mbit)
Expansion Slots
1 x PCI Express x16 slot, running at x16 (PCIEX16) (Note 2) (The PCIEX16 slot conforms to PCI Express 2.0 standard.)
1 x PCI Express x16 slot, running at x4 (PCIEX4_X1) (Note 3)
2 x PCI Express x1 slots
3 x PCI slots
Multi-Graphics Technology
Support for ATI CrossFireX™ technology (Note 4)
Storage Interface
Chipset:
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
Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10
GIGABYTE SATA2 chip:
1 x IDE connector supporting ATA-133/100/66/33 and up to 2 IDE devices
2 x SATA 3Gb/s connectors (GSATA2_6, GSATA2_7) supporting up to 2 SATA 3Gb/s devices
Support for SATA RAID 0, RAID 1, and JBOD
iTE IT8720 chip:
1 x floppy disk drive connector supporting up to 1 floppy disk drive
USB
Chipset:
Up to 14 USB 2.0/1.1 ports (Note 5) (10 on the back panel, 4 via the USB brackets connected to the internal USB headers)
NEC chip:
Up to 2 USB 3.0 ports on the back panel
* USB 3.0 10x performance is a maximum theoretical value. Actual performance may vary by system configuration.
Internal I/O Connectors
1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
1 x floppy disk drive connector
1 x IDE connector
8 x SATA 3Gb/s connectors
1 x CPU fan header
2 x system fan headers
1 x power fan header
1 x front panel header
1 x front panel audio header
1 x CD In connector
1 x S/PDIF In header
1 x S/PDIF Out header
2 x USB 2.0/1.1 headers
1 x serial port header
1 x parallel port header
1 x clearing CMOS jumper
Back Panel Connectors
1 x PS/2 keyboard or PS/2 mouse port
1 x coaxial S/PDIF Out connector
1 x optical S/PDIF Out connector
8 x USB 2.0/1.1 ports
2 x USB 3.0/2.0 ports
1 x RJ-45 port
6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/ Side Speaker Out/Line In/Line Out/Microphone)
I/O Controller
iTE IT8720 chip
H/W Monitoring
System voltage detection
CPU/System temperature detection
CPU/System/Power fan speed detection
CPU overheating warning
CPU/System/Power fan fail warning
CPU/System fan speed control
BIOS
2 x 16 Mbit flash
Use of licensed AWARD BIOS
Support for DualBIOS™
PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b
Unique Features
Support for @BIOS
Support for Q-Flash
Support for Xpress BIOS Rescue
Support for Download Center
Support for Xpress Install
Support for Xpress Recovery2
Support for EasyTune
Support for Dynamic Energy Saver™ 2
Support for Smart 6™
Support for Auto Green
Support for eXtreme Hard Drive
Support for Q-Share
Bundled Software
Norton Internet Security (OEM version)
Operating System
Support for Microsoft® Windows 7/Vista/XP
Form Factor
ATX Form Factor; 30.5cm x 24.4cm
Note
(Note 1) Due to Windows 32-bit operating system limitation, when more than 4 GB of physical memory is installed, the actual memory size displayed will be less than 4 GB.
(Note 2) For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
(Note 3) When the PCIEX1_2 slot is populated with an expansion card, the PCIEX4_X1 slot will operate at up to x1 mode.
(Note 4) The PCIEX16 slot operates at up to x4 mode when ATI CrossFireX is enabled.
(Note 5) Two share the same ports with USB 3.0.