ECS P55H-A Specification

Brand: ECS

Model: P55H-A

Category: Motherboards

Type: Specification

Preface

This publication, including all photographs, illustrations and software, is protected

any of the material contained herein, may be reproduced without written consent of

the author.

Version 1.0A

Disclaimer

The information in this document is subject to change without notice. The manufac-

turer makes no representations or warranties with respect to the contents hereof and

specifically disclaims any implied warranties of merchantability or fitness for any

particular purpose. The manufacturer reserves the right to revise this publication and

to make changes from time to time in the content hereof without obligation of the

manufacturer to notify any person of such revision or changes.

Trademark Recognition

Microsoft, MS-DOS and Windows are registered trademarks of Microsoft Corp.

MMX, Pentium, Pentium-II, Pentium-III, Celeron are registered trademarks of Intel

Corporation.

Other product names used in this manual are the properties of their respective

owners and are acknowledged.

Federal Communications Commission (FCC)

This equipment has been tested and found to comply with the limits for a Class B

digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interference in a residential installa-

tion. This equipment generates, uses, and can radiate radio frequency energy and, if

not installed and used in accordance with the instructions, may cause harmful inter-

ference to radio communications. However, there is no guarantee that interference

will not occur in a particular installation. If this equipment does cause harmful

interference to radio or television reception, which can be determined by turning the

equipment off and on, the user is encouraged to try to correct the interference by one

or more of the following measures:

• Reorient or relocate the receiving antenna

• Increase the separation between the equipment and the receiver

• Connect the equipment onto an outlet on a circuit different from that to

which the receiver is connected

• Consult the dealer or an experienced radio/TV technician for help

Shielded interconnect cables and a shielded AC power cable must be employed with

this equipment to ensure compliance with the pertinent RF emission limits governing

this device. Changes or modifications not expressly approved by the system’s manu-

facturer could void the user’s authority to operate the equipment.

Preface

Declaration of Conformity

This device complies with part 15 of the FCC rules. Operation is subject to the

following conditions:

• This device may not cause harmful interference, and

• This device must accept any interference received, including interfer-

ence that may cause undesired operation

Canadian Department of Communications

This class B digital apparatus meets all requirements of the Canadian Interference-

causing Equipment Regulations.

Cet appareil numérique de la classe B respecte toutes les exigences du Réglement sur

le matériel brouilieur du Canada.

About the Manual

The manual consists of the following:

Describes features of the

motherboard.

Go to

page 1

Describes installation of

motherboard components.

Go to

Provides information on us-

ing the BIOS Setup Utility.

Go to

page 27

Go to

Describes the ATI

Crossfire

Technology

page 49

Describes the motherboard

software

Go to

page 53

Chapter 2

Chapter 1

Introducing the Motherboard

Chapter 3

Using BIOS

Chapter 4

Using the Motherboard Software

Chapter 5

ATI Crossfire

Technology Support

Describes the Intel

Matrix

Storage Manager RAID Con-

figurations

Chapter 6

Intel

Matrix Storage Manager

RAID Configurations

Go to

page 57

Chapter 7

Setting Up eJIFFY

Describes the eJIFFY setting

Go to

page 63

page 7

Installing the Motherboard

chapter 8

Provides basic trouble shooting

Trouble Shooting

tips

page 81

Go to

iii

Chapter 2

7 7

Installing the Motherboard 7

Safety Precautions...........................................................................7

Choosing a Computer Case............................................................7

Installing the Motherboard in a Case...........................................7

Checking Jumper Settings..............................................................8

Setting Jumpers.......................................................................8

Checking Jumper Settings.......................................................9

Jumper Settings.......................................................................9

Installing Hardware...................................................................10

Installing the Processor.........................................................10

Installing Memory Modules...................................................12

Expansion Slots......................................................................16

Connecting Optional Devices.................................................18

Installing a Hard Disk Drive/CD-ROM/SATA Hard Drive...21

Connecting I/O Devices.................................................................22

Connecting Case Components.....................................................23

Front Panel Header...............................................................26

ABLE OF CONTENTSABLE OF CONTENTS

ABLE OF CONTENTS

Preface i

Chapter 1 1

Introducing the Motherboard 1

Introduction....................................................................................1

Feature.............................................................................................2

Specifications..................................................................................5

Motherboard Components............................................................6

Chapter 3 27

Using BIOS 27

About the Setup Utility........................ ......................................... 27

The Standard Configuration...................................................27

Entering the Setup Utility........................................................27

Resetting the Default CMOS Values.....................................28

Using BIOS......................................................................................29

Standard CMOS Setup..........................................................30

Advanced Setup.....................................................................32

Advanced Chipset Setup.........................................................34

Integrated Peripherals...........................................................34

Power Management Setup.....................................................36

PCI/PnP Setup.......................................................................37

PC Health Status...................................................................38

M.I.B (MB Intelligent BIOSII)...............................................42

Load Default Settings............................................................45

Supervisor Password............................................................45

User Password......................................................................46

Save & Exit Setup...................................................................46

Exit Without Saving.................................................................46

Updating the BIOS..................................................................47

Chapter 4

49 49

Using the Motherboard Software 49

About the Software DVD-ROM/CD-ROM..................................49

Auto-installing under Windows XP/Vista/7...............................49

Running Setup..........................................................................50

Manual Installation........................................................................52

Utility Software Reference........................................................52

Chapter 5

53 53

ATI CrossFire

Technology Support 53

Requirements..................................................................................53

Installing CrossFire

graphics cards.........................................53

The Catalyst

Control Center Dialog Box.................................55

View...........................................................................................55

To Enable CrossFire

..............................................................55

Chapter 6

57 57

Intel

Matrix Storage Manager RAID Configurations 57

Before creating a RAID set...........................................................57

Entering Intel

Matrix Storage Manager RAID BIOS utility....58

Creating a RAID set.......................................................................60

Deleting a RAID set.......................................................................61

Resetting disks to Non-RAID......................................................62

Exiting Setup...................................................................................62

Chapter 7

63 63

Setting Up eJIFFY 63

Introduction....................................................................................63

Installation and BIOS Setup.........................................................64

Entering eJIFFY

........................................................................................67

Features Icons

.........................................................................................68

Usage FAQ..............................................................................................69

Chapter 8

81 81

Trouble Shooting 81

Start up problems during assembly...................................................81

Start up problems after prolong use.................................................82

Maintenance and care tips.................................................................82

Basic Troubleshooting Flowchart....................................................83

POST Code Checkpoints

8585

Memo

Introducing the Motherboard

Chapter 1

Introducing the Motherboard

Introduction

Thank you for choosing the P55H-A motherboard. This motherboard is a high

performance, enhanced function motherboard designed to support the LGA1156

socket for Intel

Lynnfield processor for high-end business or personal desktop

markets.

This motherboard is based on Intel

P55 Express Chipset for best desktop platform

solution. P55 is a single-chip, highly integrated, high performance Hyper-Threading

peripheral controller, unmatched by any other single chip-device controller. This

motherboard supports up to 16 GB of system memory with dual channel DDR3

1333/1066 MHz. Two PCI slots are supported, fully compliant with PCI rev 2.3

specification at 33MHz. High resolution graphics via two PCI Express slots, in-

tended for Graphics Interface, is fully compliant to the PCI Express Base Specifica-

tion revision 2.0. Additionally, one PCI Express x4 slot is supported, fully compliant

to the PCI Express Base Specificaiton revision 2.0 as well. It implements an EHCI

compliant interface that provides fourteen USB 2.0 ports (eight USB ports and three

USB 2.0 headers support additional six USB ports). It supports the ATI CrossFire

Technology that allows you to install two GPU graphics cards. It also supports Intel

Matrix Storage Technology, providing both AHCI and RAID 0, 1, 5 and 10 configu-

ration.

The motherboard is equipped with advanced full set of I/O ports in the rear panel,

including PS/2 mouse and keyboard connectors, one CLR_CMOS button, one eSATA

ports, one LAN port, eight USB ports, one optical SPDIFO port and audio jacks for

microphone, line-in and 8-ch line-out.

In addition, this motherboard comes with an LED for debug, a power on button and

a reset button. The processor can be overclocked when CPU Over-clocking Func. is

set to Enabled in M.I.B.II (MB Intelligent BIOSII).

Introducing the Motherboard

Feature

• Accommodates Intel

Lynnfield processor

• Supports “Hyper-Threading” technology CPU

“Hyper-Threading” technology enables the operating system into thinking

it’s hooked up to two processors, allowing two threads to be run in parallel, both

on separate “logical” processors within the same physical processor.

The motherboard uses an LGA1156 type of socket that carries the following

features:

Processor

The Intel P55 Express Chipset is a single-chip with proven reliability and per-

formance.

Chipset

• Supports DDR3 1333/1066 DDR3 SDRAM with Dual-channel architec-

ture

• Accommodates four unbuffered DIMMs

• Up to 4 GB per DIMM with maximum memory size up to 16 GB

• Supports 1 Gb, 2 Gb and 4 Gb DDR3 DRAM technologies for x8 and x16

devices (It is not recommended to use 512 Mb DDR3 memory device on

this motherboard)

Memory

• Support Intel

Matrix Storage Technology, providing both AHCI and RAID

0, 1, 5 and 10 configuration.

• Two x16 PCI Express Gen2 ports each supporting up to 8 GB/s direc-

tion peak bandwidth

• An additional x4 PCI Express Gen2 port configuration to 2 x2 interface

• Compliant with PCI Rev 2.3 interface at 33 MHz

• Integrated SATA 3.0 Gb/s Host Controller

• Fourteen USB 2.0 ports supported

• Serial Peripheral Interface (SPI) support

• Enhanced DMA Controller, interrupt controller, and timer functions

Audio

• 7.1 + 2 channel High Definition Audio Codec

• All DACs Support 192k/96k/48k/44.1kHz DAC sample rate

• High –quality analog differential CD input

• Meets Microsoft WHQL/WLP 3.0 audio requirements

• Direct Sound 3D

compatible

Onboard LAN

• Supports PCI Express

1.1

• Integrated 10/100/1000 transceiver

• Wake-on-LAN and remote wake-up support

Introducing the Motherboard

The motherboard comes with the following expansion options:

• Two PCI Express x16 slots for Graphic Interface

• One PCI Express x4 slot

• One PCI Express x1 slots

• Two 32-bit PCI v2.3 compliant slot

• Six 7-pin SATA connectors

• One IDE connector supporting up to two IDE devices

Expansion Options

The motherboard has a full set of I/O ports and connectors:

Integrated I/O

• Two PS/2 ports for mouse and keyboard

• One CLR_CMOS button

• One eSATA port

• One LAN port

• Eight USB ports

• One optical SPDIFO port

• Audio jacks for microphone, line-in and 8-ch line-out

The firmware can also be used to set parameters for different processor clock

speeds.

• Power management

• Wake-up alarms

• CPU parameters

• CPU and memory timing

• ECS M.I.B.II BIOS

BIOS Firmware

This motherboard uses AMI BIOS that enables users to configure many system

features including the following:

1. Some hardware specifications and software items are subject to change

without prior notice.

2. Due to chipset limitation, we recommend that motherboard be operated

in the ambiance between 0 and 50 °C.

Introducing the Motherboard

Special Features

Intelligent Power Saving (IPS)

Equipped with IPS indicator to indicate advanced

power system that provides better energy ef-

ficiency for Intel

processors. The energy can

be greatly saved during idle operation or other

low load conditions which can be confirmed

through IPS indicator.

4E Innovation

4E innovation representing “Easy Attach”,

“Easy Button” “”Easy Clear” and “Easy

Debug”, P55H-A provides great convenience

for system installation and performance tweak-

ing that meets the demand from hardware ex-

tremists.

Introducing the Motherboard

• Intel P55 Express Chipset

• LGA1156 socket for latest Intel

Lynnfield processor

• Supports “Hyper-Threading” technology CPU

• Dual-channel DDR3 memory architecture

• 4 x 240-pin DDR3 DIMM sockets support up to 16 GB

• Supports DDR3 1333/1066 DDR3 SDRAM

• 2 x PCI Express Gen2 x16 slots

• 1 x PCI Express x1 slot

• 1 x PCI Express x4 slot

• 2 x PCI slot

• Supported by Intel P55 Express Chipset

• 6 x Serial ATA 3.0 Gb/s Host Controllers

• Supports RAID 0, 1, 5 and 10

• Support by JMicron

JMB361

• 1 x eSATA 3.0 Gb/s device

• Realtek ALC 888S supports 7.1 channel HD audio

• RTL8111DL PCIE GigaLAN Controller

• 1 x PS/2 keyboard & PS/2 mouse connector

• 1 x CLR_CMOS button

• 1 x eSATA port

• 8 x USB ports

• 1 x RJ45 LAN connector

• 1 x Audio port (Line in, microphone in, line out, and optical

SPDIF out)

• 1 x 24-pin ATX Power Supply connector, 8-pin 12V connec-

tor & ATX4P connector

• 6 x Serial ATA connectors

• 3 x USB 2.0 headers support additional 6 USB ports

• 1 x Clear CMOS header

• 1 x Front panel header

• 1 x PWR & RST button

• 1 x COM header

• 1 x SPDIF out header

• 1 x Front panel audio header

• 1 x CD_In header

• CPU_FAN/SYS_FAN/PWR_FAN/CASE_FAN connectors

Chipset

Memory

Expansion

Slots

Storage

Audio

Giga LAN

Rear Panel I/O

Internal I/O

Connectors &

Headers

• AMI BIOS with 16Mb SPI ROM

• Supports Plug and Play 1.0A, APM 1.2, Multi Boot, DMI

• Supports ACPI revision 1.0 specification

System BIOS

Form Factor • ATX Size, 305mm x 244mm

CPU

Specifications

Introducing the Motherboard

Motherboard Components

Table of Motherboard Components

LABEL COMPONENTS

1. CPU Socket

LGA1156 socket for Intel

Lynnfield processor

2. CPU_FAN CPU cooling fan connector

3. DDR3_1~4 240-pin DDR3 SDRAM slots

4. CASE_FAN Case cooling fan connector

5. ATX_POWER Standard 24-pin ATX power connector

6. SYS_FAN System cooling fan connector

7. CLR_CMOS Clear CMOS jumper

8. SATA1~6 Serial ATA connectors

9. PWR_BTN Power on button

10. RST_BTN Reset button

11. F_PANEL Front panel switch/LED header

12. F_USB1~3 Front panel USB headers

13. IDE Primary IDE connector

14. COM Onboard serial port header

15. SPDIFO SPDIF out header

16. CD_IN Analog audio input connector

17. F_AUDIO Front panel audio header

18. PCI1~2 32-bit add-on card slot

19. PCIE16X_1~2 PCI Express slots for graphics interface

20. PCIE4X1 PCI Express x4 slot

21. PCIE1 PCI Express x1 slot

22. ATX4P Auxiliary power connector for graphics card

23. PWR_FAN Power cooling fan connector

24. ATX12V 8-pin +12V power connector

This concludes Chapter 1. The next chapter explains how to install the motherboard.

Installing the Motherboard

Chapter 2

Installing the Motherboard

Safety Precautions

• Follow these safety precautions when installing the motherboard

• Wear a grounding strap attached to a grounded device to avoid dam-

age from static electricity

• Discharge static electricity by touching the metal case of a safely

grounded object before working on the motherboard

• Leave components in the static-proof bags they came in

• Hold all circuit boards by the edges. Do not bend circuit boards

Choosing a Computer Case

There are many types of computer cases on the market. The motherboard complies

with the specifications for the ATX system case. Some features on the motherboard

are implemented by cabling connectors on the motherboard to indicators and switches

on the system case. Make sure that your case supports all the features required.

Most cases have a choice of I/O templates in the rear panel. Make sure that the I/O

template in the case matches the I/O ports installed on the rear edge of the

motherboard.

This motherboard carries an ATX form factor of 305 x 244 mm. Choose a case that

accommodates this form factor.

Installing the Motherboard in a Case

Refer to the following illustration and instructions for installing the motherboard in

a case.

Most system cases have mounting brackets installed in the case, which correspond

the holes in the motherboard. Place the motherboard over the mounting brackets

and secure the motherboard onto the mounting brackets with screws.

Ensure that your case has an I/O template that supports the I/O ports and expansion

slots on your motherboard.

Installing the Motherboard

Checking Jumper Settings

This section explains how to set jumpers for correct configuration of the motherboard.

Setting Jumpers

Use the motherboard jumpers to set system configuration options. Jumpers with

more than one pin are numbered. When setting the jumpers, ensure that the jumper

caps are placed on the correct pins.

The illustrations show a 2-pin jumper. When

the jumper cap is placed on both pins, the

jumper is SHORT. If you remove the jumper

cap, or place the jumper cap on just one pin,

the jumper is OPEN.

This illustration shows a 3-pin jumper. Pins

1 and 2 are SHORT.

SHORT OPEN

Do not over-tighten the screws as this can stress the motherboard.

Installing the Motherboard

Checking Jumper Settings

The following illustration shows the location of the motherboard jumpers. Pin 1 is

labeled.

Jumper Settings

Jumper

Type

Description Setting (default)

CLR_CMOS

3-pin

Clear CMOS

1-2: NORMAL

2-3: CLEAR CMOS

Before clearing the

CMOS, make sure to

turn off the system.

CLR_CMOS

To avoid the system unstability after clearing CMOS, we recommend users

to enter the main BIOS setting page to “Load Default Settings” and then

“Save and Exit Setup”.

Installing the Motherboard

Installing Hardware

Installing the Processor

Caution: When installing a CPU heatsink and cooling fan make sure that

you DO NOT scratch the motherboard or any of the surface-mount resis-

tors with the clip of the cooling fan. If the clip of the cooling fan scrapes

across the motherboard, you may cause serious damage to the motherboard

or its components.

On most motherboards, there are small surface-mount resistors near the

processor socket, which may be damaged if the cooling fan is carelessly

installed.

Avoid using cooling fans with sharp edges on the fan casing and the clips.

Also, install the cooling fan in a well-lit work area so that you can clearly

see the motherboard and processor socket.

Before installing the Processor

This motherboard automatically determines the CPU clock frequency and system bus

frequency for the processor. You may be able to change the settings in the system

Setup Utility. We strongly recommend that you do not over-clock processors or

other components to run faster than their rated speed.

This motherboard has an LGA1156 socket. When choosing a processor, consider the

performance requirements of the system. Performance is based on the processor

design, the clock speed and system bus frequency of the processor, and the quantity

of internal cache memory and external cache memory.

Warning:

1. Over-clocking components can adversely affect the reliability of the

system and introduce errors into your system. Over-clocking can perma-

nently damage the motherboard by generating excess heat in components

that are run beyond the rated limits.

2. Always remove the AC power by unplugging the power cord from the

power outlet before installing or removing the motherboard or other

hardware components.

Fail-Safe Procedures for Over-clocking

When end-users encounter failure after attempting over-clocking, please take the

following steps to recover from it.

1. Shut down the computer.

2. Press and hold the “Page Up Key (PgUp)” of the keyboard, and then boot the PC

up.

3. Two seconds after the PC boots up, release the “Page Up Key (PgUp)”.

4. The BIOS returns to the default setting by itself.

Installing the Motherboard

A. Opening of the Load Plate

· Put your thumb on the tail of the load

plate and press the tail down.

· Rotate the load plate to fully open

position.

B. Disengaging of the Load Lever

· Hold the hook of lever and pull it to the

left side to clear retention tab.

· Rotate the load lever to fully open

position.

C. Removing the Cap

· Be careful not to touch the contact at

any time.

D. Inserting the Package

· Grasp the package. Ensure to grasp on

the edge of the substrate.

· Make sure pin 1 indicator is on your

bottom-left side.

· Aim at the socket and place the package

carefully into the socket by purely

vertical motion.

E. Closing the Load Plate

· Rotate the load plate onto the package

IHS (Intergraded Heat Spreader).

· Engage the load lever while pressing

down lightly onto the load plate.

· Secure the load lever with the hook

under retention tab.

F. Fasten the cooling fan supporting base

onto the CPU socket on the motherboard.

G. Make sure the CPU fan is plugged to the

CPU fan connector. Please refer to the

CPU cooling fan user’s manual for more

detail installation procedure.

CPU Installation Procedure

The following illustration shows CPU installation components.

Installing the Motherboard

Installing Memory Modules

This motherboard accommodates four memory modules. It can support four 240-pin

DDR3 1333/1066. The total memory capacity is 16 GB.

You must install at least one module in any of the four slots. Total memory capacity

is 16 GB.

DDR3 SDRAM memory module table

Memory module Memory Bus

DDR3 1066 533 MHz

DDR3 1333 667 MHz

Channel A: DDR3_1, DDR3_2

Channel B: DDR3_3, DDR3_4

The four DDR3 memory sockets (DDR3_1, DDR3_2, DDR3_3 and DDR3_4) are

divided into two channels and each channel has two memory sockets as following:

1. To achieve better airflow rates and heat dissipation, we suggest that

you use a high quality fan with 3800 rpm at least. CPU fan and

heatsink installation procedures may vary with the type of CPU fan/

heatsink supplied. The form and size of fan/heatsink may also vary.

2. DO NOT remove the CPU cap from the socket before installing a

CPU.

3. Return Material Authorization (RMA) requests will be accepted

only if the motherboard comes with the cap on the LGA1156 socket.

Due to Intel CPU spec definition, the system will not boot if only one

DIMM is installed in DDR3_1 or DDR3_3. Follow the table above for

recommended memory configuration.

DDR3_1 DDR3_2 DDR3_3 DDR3_4

2 DIMMs - Populated - Populated

3 DIMMs Populated Populated Populated

4 DIMMs Populated Populated Populated Populated

Mode

Sockets

Recommend memory configuration

Installing the Motherboard

Do not remove any memory module from its antistatic packaging

until you are ready to install it on the motherboard. Handle the

modules only by their edges. Do not touch the components or metal

parts. Always wear a grounding strap when you handle the modules.

Installation Procedure

Refer to the following to install the memory modules.

1 This motherboard supports unbuffered DDR3 SDRAM .

2 Push the latches on each side of the DIMM slot down.

3 Align the memory module with the slot. The DIMM slots are keyed with

notches and the DIMMs are keyed with cutouts so that they can only be

installed correctly.

4 Check that the cutouts on the DIMM module edge connector match the

notches in the DIMM slot.

5 Install the DIMM module into the slot and press it firmly down until it

seats correctly. The slot latches are levered upwards and latch on to

the edges of the DIMM.

6 Install any remaining DIMM modules.

1. For best performance and compatibility, we recommend that users

give priority to the yellow DIMMs (DDR3_2/DDR3_4) when install-

ing DIMMs.

2. We suggest users not mix memory type. It is recommended to use

the same brand and type memory on this motherboard.

Installing the Motherboard

Table A: DDR3 (memory module) QVL (Qualified Vendor List)

Type

Size Vendor Module Name

ELPIDA

PC3-8500U-7-00-AP

Hynix

HYMT164U64ZNF8-G8 AA

Mic r on

MT4JTF6464AY-1G1B1

A-data M3OSS3H3I3120B5Z

Aeneon

AEH760UD00-10FA98X

Corsair CM3X1024-1066C7

Hynix

HMT112U6AFP8C-G7N0 AA

Kingston

KVR1066D3N7/1G

MT8JTF12864AY-1G1D1

MT8JTF12864AZ-1G1F1

IMSH1GU03A1F1C-10G

B2S81427034

IMSH1GU03A1F1C-10F

B2S81427023

Samsung

Golden Bar M378B2873DZ1-CF8

0818

Unif osa

GU502202EP0200

Elix ir

M2Y2G64CB8HA9N-BE 0922.TW

Hynix

HMT125U6AFP8C-G7N0 AA

MT16JTF25664AY-1G1D1

MT16JTF25664AZ-1G1F1

B3S81427044

B3S81528005

Samsung

M378B5673DZ1-CF8 0842

Unif osa

GU512302EP0200

4 GB Kingston

KVR1066D3N7/4G 9905403-

028.A00LF

A-data AD31333001GOU(AD63I1A08)

Apacer

78.01GC6.9L0

Hynix

HMT112U6AFP8C-H9N0 AA

Kingston

KVR1333D3N9/1G

MT8JTF12864AY-1G4D1

MT8JTF12864AZ-1G4F1

Qimonda

IMSH1GU13A1F1C-13H

M378B2873DZ1-CH9

M378B2873EH1-CH9

Unif osa

GU502203EP0200

DDR3 1333

Mic r on

1 GB

2 GB

Mic r on

Samsung

DDR3 1066

512 MB

Qimonda

Mic r on

Qimonda

1 GB

The following DDR3 1800/1600/1333/1066 memory modules have been tested and

qualified for use with this motherboard.

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ECS P55H-A Specification

Brand: ECS

Model: P55H-A

Category: Motherboards

Type: Specification

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ECS P55H-A Specification

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