Gigabyte GA-P55A-UD6 User Manual

- 13 - Hardware Installation
1-3 Installing the CPU and CPU Cooler
1-3-1 Installing the CPU
A. Locate the alignment keys on the motherboard CPU socket and the notches on the CPU.
NotchNotch
Alignment Key
Alignment Key
LGA1156 CPU
LGA1156 CPU Socket
Pin One Corner of the CPU Socket
Triangle Pin One Marking on the CPU
Read the following guidelines before you begin to install the CPU:
• Make sure that the motherboard supports the CPU.
(Go to GIGABYTE's website for the latest CPU support list.)
• Always turn off the computer and unplug the power cord from the power outlet before installing
the CPU to prevent hardware damage.
• Locate the pin one of the CPU. The CPU cannot be inserted if oriented incorrectly. (Or you may
locate the notches on both sides of the CPU and alignment keys on the CPU socket.)
• Apply an even and thin layer of thermal grease on the surface of the CPU.
• Do not turn on the computer if the CPU cooler is not installed, otherwise overheating and dam-
age of the CPU may occur.
• Set the CPU host frequency in accordance with the CPU specications. It is not recommended
that the system bus frequency be set beyond hardware specications since it does not meet the
standard requirements for the peripherals. If you wish to set the frequency beyond the standard
specications, please do so according to your hardware specications including the CPU, graph-
ics card, memory, hard drive, etc.

Gigabyte GA-P55A-UD6 Specifications

General

Memory voltage	1.5 V
Number of memory slots	6
Maximum internal memory	16 GB
Processor socket	LGA 1156 (Socket H)
Processor manufacturer	Intel
USB 2.0 connectors	2
Power fan connector	Yes
Number of SATA connectors	8
AGP x8 slots	0
Special features	@BIOS Q-Flash Xpress BIOS Rescue Download Center Xpress Install Xpress Recovery2
Controller interface type	iTE IT8720
Controller 2nd interface type	ATA-133/100/66/33
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.
Audio chip	Realtek ALC889
Motherboard chipset	Intel® P55
Audio output channels	7.1 channels
Motherboard form factor	ATX
Compatible operating systems	Win XP, Vista, 7
PCI Express x16 slots	3
RAID levels	0, 1, 10
Bundled software	Norton Internet Security
Networking features	10/100/1000 Mbit
BIOS memory size	32 Mbit

Weight and Dimensions

Depth	244 mm
Width	305 mm