P55A-G55

Intel® P55-based motherboard

• Support USB 3.0 & SATA 6Gb/s
• APS (Active Phase Switching) offers more than 93% power saving
• Winki 2.0 provides an easy-to-use internet environment

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All Solid Capacitors

Capacitors are the most important component for electronic product's power supply. The quality of the capacitors can impact the stability of the entire system and risk of product failure. Currently there are two types of capacitors, electrolytic capacitors and solid capacitors. Compared to electrolytic capacitors, solid capacitors have a longer lifespan, and provide a more stable power under high temperatures. More importantly, solid capacitors do not have any liquid materials inside, and thus will not suffer a leak which would infringe upon the product’s stability. With such benefits is it no wonder that solid capacitors are very important for product quality's improvement.
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APS (Active Phase Switching)

Active Phase Switching, APS, technology is an intelligent design that helps to save energy on MSI’s motherboards. The underlying idea is to switch off the power supply as soon as no electricity is needed, and when the system needs more resources again, APS will automatically adjust electricity supply accordingly. APS will automatically detect your processor’s loading at any given time and save energy accordingly. This is only possible by means of a very advanced power controlling technology. Other than software-based solutions, APS technology stands out from MSI's own research. The specially developed IC chip can operate automatically depending on the demands of the power supply, which is to reduce the total power usage. 
 

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ATI CrossFireX

ATI CrossFireX™ is the ultimate multi-GPU performance gaming platform. Enabling game-dominating power, ATI CrossFireX technology enables two or more discrete graphics processors to work together to improve graphics performance. ATI CrossFireX technology allows you to expand your system’s graphics capabilities. It allows you the ability to scale your system’s graphics horsepower as you need it, supporting up to four ATI Radeon™ HD graphics cards, making it the most scalable gaming platform ever. With an ATI CrossFireX gaming technology, the traditional graphics limitation exists no more, allowing you to enjoy higher performance as well as visual experience.

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Lossless 24-bit/192KHz HD Audio

Onboard PC audio gets better! MSI is the first to implement the most high-end HD Audio codecs available. Don’t be fooled by other inferior audio solutions onboard (sometimes you can’t even find the driver!) Only MSI offers the Loss-less 24-bit/192KHz HD Audio function with an incredible 109 SNR dB value to provide the most clear & vivid HD audio quality and support 7.1 channels surround sound playback with a 2-channel independent stereo output (multiple streaming) through the front panel 3.5 inch phone jack.




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Easy OC Switch

Every user desires more performance.  MSI has special Easy OC Switches to provide that accessibility to all users. This great technology makes it easier to tweak the core clock settings. There's no need to have a detailed understanding; with just a few simple steps, everyone is able to get the most out of their motherboards. With a single click, the whole system will increase by 5%-20% performance, making overclocking a very easy thing to do.

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USB 3.0

Compared to the 480Mbps provided by traditional USB 2.0, the all-new USB 3.0's 5Gb/s offers 10 times the transfer bandwidth, so transferring a Blu-ray movie takes less than one minute.

Features
- 10X Faster Than USB 2.0
- Up to 5Gb/s Data Transfer Bandwidth
- Boost Transfer Rate Between Your PC and External Storage Devices

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SATA 6Gb/s

SATA 6Gb/s provides double the bandwidth of traditional SATA 3Gb/s, and increases the data transfer rate between your motherboard and internal storage devices, such as 7200RPM HDDs, 10000RPM HDDs and SSDs. It's also the current trend for upcoming high-speed internal storage devices to to break the existing bottleneck of a PC's performance.

Features
- 2X Faster Than SATA 3Gb/s
- Up to 6Gb/s Data Transfer Bandwidth
- Unleash True Performance of New HDDs/SSDs

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3TB+ Infinity

3TB+ Infinity is not only breaking through the limit of traditional BIOS, but also enhancing the utilization of hard drives efficiently. In addition to supporting the latest 3TB hard drives, MSI 3TB+ Infinity technology can use the 3TB hard drive as boot disk when installing a 64-bit operating system. Compared to competitors, MSI 3TB+ Infinity is an industry-leading technology which substantially presents an advantage of development and application in the future.

Features
- All the latest 3TB hard drivers on the market can be supported
- Make the 3TB hard drive as boot disk when installing a 64-bit operating system

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Live Update 5

MSI Live Update 5 is a powerful and useful application for updating the latest BIOS and Drivers, saving you time and lowers the risk of updating. End-users can install and run the Live Update 5 software on their computers with the companion CD or downloading the app from the MSI website.

Features
- Automatically Detect the BIOS/Driver/VGA/Utility Update
- Support Microsoft Windows XP/Vista/7 32/64bit

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M-Flash

Compared to common motherboard which need extra BIOS chips, MSI’s M-Flash has a double advantage which doesn’t need extra components and secondly, all your BIOS data will be saved in the USB drive. The stored data does not only have backup and upgrade function, moreover it can also be seen as a portable BIOS chip which is actually able to boot up your PC.

Features
- Backup/Restore Your BIOS to/from Any USB Flash Disk
- Avoid Unnecessary Repair Due to Accident Failures During The Upgrading Process
- Earn more BIOS Lifespan by Reducing Unnecessary Rewriting Process

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USB Safeguard

USB Safeguard can prevent motherboards and USB devices from being damaged by short-circuit and ESD (Electro-Static Discharge) with Anti-ESD chips built-into the motherboards. Additionally, the safeguard can protect against such dangers multiple times, and greatly improves product lifespan.

Features
- All MSI motherboards use USB Safeguard’s anti-ESD chip for thorough protection against ESD damage
- USB Safeguard is protected against a short circuit and/or ESD without the need for a fuse. It also supports stand-by power supply

 

MSI Reminds You...

  1. The specifications may differ from areas and we keep the right to change without notice. Please check the specific Specification with your local dealers.
  2. The color of the product might be affected by photography and the monitor's setting, which might be different from the real product.

 

  • Socket
    1156
  • CPU (Max Support)
    i3/i5/i7
  • Baseclock/Hyper Transport
    6.4GT/s
  • Chipset
    Intel® P55
  • DDR3 Memory
    DDR3 1066/1333/1600*/1800*/2000*/2133* (OC)
  • Memory Channel
    Dual
  • DIMM Slots
    4
  • Max Memory (GB)
    16
  • PCI-Ex16
    2
  • PCI-E Gen
    Gen2 (1x16, 1x8)
  • PCI-Ex1
    2
  • PCI
    3
  • IDE
    1
  • SATAIII
    2
  • SATAII
    6
  • RAID
    0/1/5/10
  • TPM (header)
    1
  • LAN
    10/100/1000*1
  • USB 3.0 ports (Rear)
    2
  • USB 2.0 ports (Rear)
    8
  • Audio ports (Rear)
    6+Optical SPDIF
  • Form Factor
    ATX
  • APS
    Y
  • CrossFire
    Y

 

  1. 1. The specifications may differ from areas and we keep the right to change without notice. Please check the specific specification with your local dealers.
  2. 2. The color of the product might be affected by photography and the monitor's setting, which might be different from the real product.

 


CPU

• Supports Intel® i3 / i5 / i7 based processors in LGA1156 package.
Please refer to CPU Support for compatible CPU; the above description is for reference only.


Chipset

• Intel® P55 Chipset
- Supports QPI up to 6.4GT/s
- Hi-Speed USB (USB2.0) controller, 480Mb/sec.
- 6 SATAII ports with transfer rate up to 3Gb/s.
- PCI Master v2.3, I/O APIC.
- ACPI 2.0 compliant.
- Serial ATA RAID 0/1/5/10.
- Integrated AHCI controller.


Main Memory

• Supports four unbuffered DIMM of 1.5 Volt DDR3 1066/1333/1600*/1800*/2000*/2133* (OC) DRAM, 16GB Max
- Supports 1Gb/ 2Gb/ 4Gb DRAM size
- Supports Dual channel mode


Slots

• 2 PCI Express gen2 x16 slots
- If two graphics cards are installed at PCI_E1 & PCI_E4 slots, these two PCIE x16 lanes will auto arrange from x16/ x0 to x8/ x8 
- supports ATI® Crossfire™
• 2 PCI Express gen2 x1 slots
• 3 PCI slots, support 3.3V/ 5V PCI bus Interface


On-Board IDE/SATA


One Ultra DMA 66/100/133 IDE controller integrated in Marvell® 88SE9128B1.
- Supports PIO, Bus Master operation modes.
- Can connect up to two Ultra ATA drives.

SATAII /SATAIII controller integrated in Intel P55/Marvell® 88SE9128B1 chipsets
- Supports six SATAII ports by P55
- Supports two SATAIII ports by Marvell 88SE9128B1, up to 6Gb/s, support SATA RAID 0/1.
- Supports AHCI controller with AHCI / SATA RAID 0/1/5/10 by P55.

MSI Reminds You...
• The RAID setup floppy disk is optional depending on the districts. You can download the files from the website to make the setup disk.


Audio

• Chipset integrated by Realtek® ALC892
- Flexible 8-channel audio with jack sensing
- Compliant with Azalia 1.0 Spec
- Meet Microsoft Vista Premium spec


LAN

• Supports One LAN PCI-E Gb LAN controller by Realtek 8111DL.


Internal I/O Connectors

- ATX 24-Pin power connector
- 8-pin ATX 12V power connector 
- CPU x1 / System x2 FAN connectors
- CD-in connector
- Front panel audio connector
- Front panel connector
- 1 x chasis intrusion connector
- 2 x USB 2.0 connectors
- 6 x Serial ATAII connectors
- 2 x Serial ATAIII connectors
- 1 x ATA133 connector
- 1 x Power Button
- 1 x Clear CMOS jumper
- 1 x SPDIF-out connector
- 1 x TPM module connector
- 1 x Serial port connector
- 1 x Parallel port connector
- 1 x Easy OC Switch

MSI Reminds You...
• The floppy disk cable will be optional.

Back Panel I/O Ports

- 1 x Optical SPDIF-out
- 1 x PS/2 Keyboard/Mouse port
- 8 x USB 2.0 ports
- 2 x USB 3.0 ports
- 1 x RJ45 LAN Jack
- 1 x 6 in 1 audio jack 


BIOS

• The motherboard BIOS provides "Plug & Play" BIOS which detects the peripheral devices and expansion cards of the board automatically.
• The motherboard provides a Desktop Management Interface(DMI) function which records your motherboard specifications.


Dimension

• 30.5cm(L) x 23.0cm(W) ATX Form Factor

Mounting

• 6 mounting holes.


Product Accessories

 
MSI Reminds You...
• The accessories will probably be different according to the different selling areas of product models. For details of accessories, please refer to the descriptions on the product package.

 

  1. 1. The specifications may differ from areas and we keep the right to change without notice. Please check the specific specification with your local dealers.
  2. 2. The color of the product might be affected by photography and the monitor's setting, which might be different from the real product.

 

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