P55H-AK (V1.0)

ECS Ultimate Gaming motherboard
ECS P55H-AK is ECS most high-end motherboard designed for Intel LGA1156 K series unlock CPU to reach the optimum system performance. It has NVIDIA NF200 with 32 PCIe lanes for 3 x PCIe16X GEN 2.0 graphic interface to support 3-Way NVIDIA SLI / ATi CrossfireX technology. Also, ECS unique M.I.B X interface makes a simple, fast and safe O.C operation in BIOS. With its exclusive Rapid 333 feature, P55H-AK provides USB 3.0, SATA 6Gb/s and eSATA 6Gb/s high data transfer rate to fulfill the most speed-demanding gamers.

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"ECS brushed away the flaws the P55 chipset has really as they simply went nuts while designing this motherboard. Spared no expense we spot two NEC USB 3.0 controllers, we get to play around with SATA 3 6G thanks to an additional Marvell controller, they added an extra PLX chip and tied it in to the DMI interface for a 4 extra PCIe lanes covering the bandwidth needs of the new fast interconnects over USB 3.0 and SATA 6G and then added an NVIDIA NF2100 chip which functions as x16 PCie lane switch chip in-between the x16 PCIe graphics slots, enabling 3-way SLI as an option in a 16:8:8 configuration.

The P55H-AK is very nice motherboard that offers excellent baseline performance, and heaps of features for any purpose. ECS is trying to govern the competition with a more feature-rich solution that is reasonably priced if you bare in mind what you receive. The P55H-AK is attractive to look at. It certainly is impressive and amongst the fastest performing P55 motherboard we've tested to date."

--Quoted from Guru3D in Netherlands - “Recommended” award

ECS P55H-AK "Overclock to 5GHz under air cooling"

 Durathon Technology - Motherboard quality you can trust.

When it comes to the quality and durability of your motherboard, ECS goes above and beyond industry standards to ensure that you have a motherboard that will last long and always continue to out perform the competition. Trust only motherboards built with Durathon Technology. Click " Durathon microsite" for more details.

 ATI CrossFireX™ Technology Ready

Combining multi-GPU to deliver users a highest image quality and screen resolutions.

 Qooltech III Silent Colling Solution

ECS Qooltech III comes with dual heat pipe design to enhance cooling efficiency for PWM (reduce 15~20 degrees C in temperature).
 15u Gold Contact - 3 Times Extra Protection

It offers 3 times extra anti-oxidation, temperature resistant and scrape protection to ensure motherboards longest lifespan, better reliability and excellent contact.

 Applied Solid Capacitor

Better conductivity and heat resistance can be expected as well thus the system stability can be assured under critical conditions.

 Speedy Storage Interface - SATA 6G

Double the transfer speed of SATA 3.0 Gb/s, running at speed up to amazing 6.0Gb/s.

 Full Duplex Operation Support - USB 3.0

Ten times the transfer speed of USB2.0, running at speed up to amazing 4.9Gb/s.

 Motherboard Intelligent BIOS X (M.I.B X - Ultimate BIOS O.C interface)

Providing the most intelligent and convenient way to adjust the clock/ voltage settings of CPU and memory and get the extra performance in advanced.
ECS O.C profile offers 3 sets of O.C values for CPU and DRAM to reach higher performances in a quick, simple and safe way. It keeps users’ preferable BIOS settings to regain your last successful O.C configuration to create the most convenient O.C experience.

CPUº LGA1156 socket for latest Intel Core i7 / Core i5 / Core i3 high-end desktop processors
º Supports Unlocked Intel® Core™ i7 / Core™ i5 Processors
º Supports Hyper-Threading Technology CPU
º Supports Intel® Turbo Boost Technology
º Supports Intel® Smart Cache
Extra Chipsº NVIDIA nForce® 200 PCI Express switch chip with extra 32 PCIe lanes
    • Programming support for NVIDIA® SLI™ technology
    • Full 64-bit addressing
    • Supports the PCI Express power management capability
º PLX PEX 8608 PCIe Gen 2 switch
    • Offers 8 PCI Express Gen2 (5.0GT/s) lanes
    • Supports Read Pacing™ Technology
    • Supports packet cut-thru with the industry’s lowest latency of 140ns (x4 to x1)
MEMORYº Dual-channel DDR3 memory architecture
º 4 x 240-pin DDR3 DIMM socket support up to 16GB
º Supports DDR3 2400 (OC) / 2200 (OC) / 2000 (OC) /1800 (OC) /1600 (OC) / 1333 /1066 DDR3 SDRAM
º Supports Intel® Extreme Memory Profile (XMP)
Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 32-bit OS.
For Windows® 64-bit OS with 64-bit CPU, there is no such limitation

EXPANSION SLOTº 3 x PCI Express Gen 2.0 x16 slots
º 2 x PCI Express x1 slots
º 1 x PCI slot
º PCIE16X_1/PCIE16X_2 /PCIE16X_3 runs at x16/x8/x8 speed.
STORAGEº Support by Intel® P55
    • 6 x Serial ATA 3.0Gb/s devices
    • RAID0, RAID1, RAID5, RAID 10 configuration
º Support by Marvell 9128
    • 2 x eSATA 6.0Gb/s ports supporting external SATA 6.0Gb/s devices
    • 2 x Serial ATA 6.0Gb/s ports supporting 2 x SATA 6.0Gb/s device
    • Supports SATA RAID 0 and 1
AUDIOº Realtek RTL889 8-Ch High Definition audio CODEC
º Capability for “full rate” BluRay / DVD / HD DVD support.
LANº Dual RealTek RTL8111E Gigabit Fast Ethernet Controllers with Teaming
REAR PANEL I/Oº 1 x PS/2 keyboard/mouse combo port
º 2 x RJ45 LAN connectors
º 1 x Audio port (Line-in, Line-out, Mic-in)
º 1 x SPDIF port
º 1 x Clear_CMOS button
º 2 x eSATA 6.0Gb/s ports
º 2 x USB 3.0 ports compatible to both USB 3.0/2.0 devices (blue)
º 8 x USB 2.0 ports
INTERNAL I/O CONNECTORS & HEADERSº 1 x 24-pin ATX Power Supply connector
º 1 x 8-pin ATX 12V Power Connector
º 1 x 4-pin power connector for VGA card
º 1 x 4-pin CPU_FAN connector
º 1 x 3-pin PWR_FAN connector
º 1 x 3-pin SYS_FAN connector
º 1 x Power on button
º 1 x Reset button
º 1 x Speaker header
º 1 x Front panel switch/LED header
º 1 x Front panel audio header
º 1 x SPDIF out header
º 1 x Clear CMOS header
º 1 x Serial Header(COM)
º 6 x Serial ATA 3Gb/s connectors
º 2 x SATA 6Gb/s connectors
º 1 x USB 3.0 header supports additional 2 USB 3.0 Ports
º 2 x USB 2.0 headers support additional 4 USB 2.0 Ports
º Supports Plug and Play, STR (S3) / STD (S4) , Hardware monitor, Multi Boot
º Supports ACPI & DMI
º Support over-clocking
º Audio, LAN, can be disabled in BIOS
º F11 hot key for boot up devices option
º Support ECS M.I.B X Utility
    • CPU voltage adjustable
    • Memory voltage adjustable
    • NB Chipset Voltage Adjustable
    • SB Chipset Voltage Adjustable
    • HT Voltage Adjustable
    • External Clock Adjustable
FORM FACTORº ATX Size, 305mm*244mm

 Driver Download

Please read the notes carefully before updating BIOS.
1.Do not update the BIOS if the system is running fine. Unsuccessful BIOS flash may cause the system fails to boot up. The manufacturer is not responsible for any BIOS flash failure.
2.Make sure your M/B PCB version number first, and then read the updated description & special note carefully to check if the new BIOS version patch pertain to your current problem.
(How to recognize the M/B PCB version)
3.Please DO NOT reboot system,unplug power supply and remove battery during BIOS update process.
4.It is recommended to use the updated flash utility included in each BIOS download package.
(How to use flash utility).
OS ID NOProduct Line
Windows 7 32 bit1414646Motherboard

System reports 8GB(3.99GB usable) at 64bit OS with 8GB(2GB*4pcs)memory installed. And "Memory Remap Feature" is "enabled" under Advance Chipset of BIOS. 

Please make sure that you exact follow the instruction of the manual for plugging the memory modules in order first as defined by Intel.

The possible reasons may cause the memory size half reduction are, 
Memory Remap Feature need to be enabled for 64bit OS.
2.  Memory module not well installed on DIMM slot. 

* means validated by ECS at time of writing. Changes to component or CPU may produce a different outcome. The result shown is for reference only and is subject to change w/o notification.

SocketFamilyProcessorWattageFrequencyCacheSteppingSince BIOS
LGA1156Intel Core™ i7860 (B1) (95W)N/A2.80 GHz8MBN/A09/30/2010
LGA1156Intel Core™ i7860s (B1) (82W)N/A2.53 GHz8MBN/A09/30/2010
LGA1156Intel Core™ i7870 (B1) (95W)N/A2.93 GHz8MBN/A09/30/2010
LGA1156Intel Core™ i7870s (B1) (82W)N/A2.66 GHz8MBN/A09/30/2010
LGA1156Intel Core™ i7875K(B1)(95W)N/A2.93GHz8MBN/A09/30/2010
LGA1156Intel Core™ i7880(B1)(95W)N/A3.06GHz8MBN/A09/30/2010
LGA1156Intel Core™ i5650 (C2) (73W)N/A3.20 GHz4MBN/A09/30/2010
LGA1156Intel Core™ i5650 (K0) (73W)N/A3.20GHz4MBN/A09/30/2010
LGA1156Intel Core™ i5655K(K0)(73W)N/A3.20GHz4MBN/A09/30/2010
LGA1156Intel Core™ i5660 (C2) (73W)N/A3.33 GHz4MBN/A09/30/2010
LGA1156Intel Core™ i5660 (K0) (73W)N/A3.33GHz4MBN/A09/30/2010
LGA1156Intel Core™ i5661 (C2) (87W)N/A3.33 GHz4MBN/A09/30/2010
LGA1156Intel Core™ i5661 (K0) (87W)N/A3.33GHz4MBN/A09/30/2010
LGA1156Intel Core™ i5670 (C2) (73W)N/A3.46 GHz4MBN/A09/30/2010
LGA1156Intel Core™ i5670 (K0) (73W)N/A3.46GHz4MBN/A09/30/2010
LGA1156Intel Core™ i5680(K0)(73W)N/A3.60GHz4MBN/A09/30/2010
LGA1156Intel Core™ i5750 (B1) (95W)N/A2.66 GHz8MBN/A09/30/2010
LGA1156Intel Core™ i5750s (B1) (82W)N/A2.40 GHz8MBN/A09/30/2010
LGA1156Intel Core™ i5760 (B1) (95W)N/A2.80GHz8MBN/A09/30/2010
LGA1156Intel Core™ i3530 (C2) (73W)N/A2.93 GHz4MBN/A09/30/2010
LGA1156Intel Core™ i3530 (K0) (73W)N/A2.93GHz4MBN/A09/30/2010
LGA1156Intel Core™ i3540 (C2) (73W)N/A3.06 GHz4MBN/A09/30/2010
LGA1156Intel Core™ i3540 (K0) (73W)N/A3.06GHz4MBN/A09/30/2010
LGA1156Intel Core™ i3550(K0)(73W)N/A3.20GHz4MBN/A09/30/2010
LGA1156Intel Core™ i3560(K0)(73W)N/A3.33 GHz4MBN/A09/30/2010
LGA1156Intel PentiumG6950 (C2) (73W)N/A2.80 GHz3MBN/A09/30/2010

Driver NameCyberLink PowerDVD 11 Downloader 
Release Date2011/08/17 
Update Description 
Special Note30 days trial 
File Size352KB 
Support O.SWindows XP 32bit edition ; Windows XP 64bit edition ; Windows Vista 64bit ; Windows Vista 32bit ; Windows 7 32bit ; Windows 7 64bit 

Driver NameCyberLink Power2Go 7 
Release Date2011/07/27 
Update Description30 days trial 
Special Note 
File Size139MB 
Support O.SWindows XP 32bit edition ; Windows XP 64bit edition ; Windows Vista 64bit ; Windows Vista 32bit ; Windows 7 32bit ; Windows 7 64bit 

Driver NameCyberLink PowerDirector 9 Downloader 
Release Date2011/07/19 
Update Description30 days trial 
Special Note 
File Size316KB 
Support O.SWindows XP 32bit edition ; Windows XP 64bit edition ; Windows Vista 64bit ; Windows Vista 32bit ; Windows 7 32bit ; Windows 7 64bit 

All memory modules on Qualified Vendors List (QVL) have been tested and qualified for use with this motherboard.
Click to download QVL
Model: P55H-AK
PCB Version: V1.0