H55H-I (V1.0A)

Featuress LGA1156 socket for Intel Core i5/Core i3 Clarkdale new generation desktop processors in a Mini-ITX 170x170 mm form factor
H55H-I is the ECS Mini-ITX form factor motherboard, featuring onboard HDMI/DVI connectors for High Definition display and S/PDIF optical and coaxial ports for high quality digital sound output. Perfect for setting up your personal Home Theater PC (HTPC) to enjoy Blu-ray playback in Full HD 1080P multimedia home entertainment.

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 Durathon2 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.

 4K Video Output

4K video output affords you the most vivid display and an experience of visual clarity and details that meet the needs of entertainments.

eJIFFY Rapid Access Utility

Rapid accesses to OS within 8 seconds and enjoy web browsing, photo reviewing, on-line chat and etc.
  LGA 1156 Core i5
Supports the Intel Core i5 Processors in the LGA1156 package. Accelerating in response to demanding tasks, such as playing games and editing photos with intelligent performance, and moving faster when you do.
  LGA 1156 Core i3
Supports the Intel Core i3 Processors in the LGA1156 package. This family equipped with Intel® HD Graphics is the perfect entry point for a fast, responsive PC experience.
  LGA 1156
Supports LGA 1156 CPU-socket interface in the single chipset structure and will supersede LGA775 in the high-end and performance desktop segments. It can tune your system for extra performance and feed your need for speed.
The exceptionally increased interconnect bit rate from 2.5GT/s up to 5.0GT/s would effectively eliminates the bottle neck of the system performance and brings the most terrific computing experience from the present to the future.
S/PDIF (Sony/Philips Digital Interface) is a convenient connectivity and standard audio transfer format. It allows the transfer of audio from one file to another without the conversion to and from an analog format, and keeps the optical connector the best.
  8 Channel High Definition Audio
Integrated 8-channel HD Audio CODEC delivering advanced multi-channel audio and bringing you the experience of home theater-quality sound.
  Gigabit LAN
Delivers transfer speed ten times faster than conventional 10/ 100 Ethernet connections, supporting a high transfer rate up to Gigabit/s. Gigabit LAN is the networking standards for the future and is ideal for handing large amount of data such as video, audio, and voice.
  HDMI Output
The interface supports existing high-definition video formats(720p, 1080i, and even 1080p), plus multi-channel digital audio on a single cable. Combination with HDCP, provides a secure audio/video interface that meets the security requirements of content providers and systems operators.
  DVI Output
A video interface standard designed to maximize the visual quality of digital display devices such as flat panel LCD computer displays and digital projectors. DVI transmits a digital signal from a digital location in the graphics card to a digital location on the display screen. So you get the full clarity and stability of liquid crystal technology — with sharp, clear pixels.
  eSATA 3Gb/s
The signal quality and the Max cable length is 2x longer than the conventional one. It also supports external HDD hot plug and keyed connector end for fool-proof.
ECS eJIFFY is a Linux based interface for a fast boot application which is compressed in a CD to install on the hard drive.Within 8 seconds after the computer boots up, eJIFFY is ready to provide users the total enjoyment for web browsing, photo reviewing and on-line chat. Instead of waiting for the regular OS to start up, eJIFFY serves a convenient center to have quick fun or a glance at the hot news in today’s fast pace world where nothing can be too quick.
  eBLU - BIOS Live Update Utility
ECS eBLU utility makes updating BIOS fast and easy. eBLU saves time and hassle of searching for BIOS online and avoid complicated flashing steps. With simple and easy steps it checks for new BIOS version on-line and safely guides the user to flash the system BIOS.
  eDLU - Drivers Live Update Utility
ECS eDLU utility makes updating Drivers fast and easy. eDLU Saves time and hassle of searching for Drivers online and avoid complicated steps. With simple and easy steps it checks for new Drivers version on-line and let the user to update the Drivers.
  Certified For Windows® 7
Windows® 7 platform introduces a number of manageability improvements that can reduce total cost of ownership by helping to increase automation, improve user productivity, and provide flexible administrative control to meet compliance requirements. It is more user-friendly and has been optimized to consume less system resources with Windows® 7 as well. Furthermore, the VT technology is enhanced to support real-time multimedia application including video playback and 3D games.
  EuP Certified
ECS Motherboards have been certified by EuP. EuP certification verifies that ECS motherboards comply with European Union stander to decrease the environmental effects and promote sustainable environment. Save energy and keep healthy environment by choosing ECS motherboards.
CPUº LGA1156 socket for latest new Core i5/Core i3 Clarkdale high-end desktop processors
º DMI 2.5GT/s
CHIPSETº Intel® H55 Express Chipset
MEMORYº Dual-channel DDR3 memory architecture
º 2 x 240-pin DDR3 DIMM socket support up to 8 GB
º Support DDR3 1333/1066 SDRAM
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 1 x PCI Express x16 Gen2.0 slot
STORAGEº Support by Intel® H55
    • 4 x Serial ATA 3.0Gb/s devices
    • 1 x eSATA 3Gb/s port
AUDIOº Realtek ALC892 8-Ch High Definition audio CODEC
º Compliant with HD audio specification
LANº Realtek RTL8111DL Gigabit Lan
REAR PANEL I/Oº 1 x D-sub(VGA)
º 1 x HDMI Port
º 1 x DVI Port
º 1 x RJ45 LAN connector
º 1 x Audio port (Line-in, Front Out, Mic_in Rear, Center & Woofer, Back Surrond, Side Surround)
º 2 x Digital SPDIF (Optical & Coaxial) out
º 1 x eSATA 3Gb/s port
º 6 x USB 2.0 ports
INTERNAL I/O CONNECTORS & HEADERSº 1 x 24-pin ATX Power Supply connector
º 1 x 4-pin 12V Connector
º 1 x 4pin CPU_FAN connectors
º 1 x 3-pin SYS_FAN connector
º 1 x Speaker header
º 1 x Front panel switch/LED header
º 1 x Front panel audio header
º 4 x SATA 3Gb/s connectors
º 1 x SPDIF out header
º 2 x USB 2.0 headers support additional 4 USB 2.0 Ports
º 1 x Clear CMOS header
º 1 x Chassis intrusion header
º Supports Plug and Play, STR (S3) / STD (S4) , Hardware monitor, Multi Boot
º Audio, LAN, can be disabled in BIOS
º F11 hot key for boot up devices option
º Support over-clocking
º ECS eJIFFY utility
FORM FACTORº Mini ITX 170x170mm

 Driver Download

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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).

Should I enable C-STATE in BIOS Setup for Intel® Turbo Boost feature? 

Yes, it is recommended. When you attempt to support Turbo Boost Technology with Intel® Turbo Boost supporting processors, it is suggested to enable C-State in BIOS to obtain better performance if it is available.
For example,
One particular processor may allow up to two frequency steps (266.66 MHz) when just one core is active and one frequency step (133.33 MHz) when two or more cores are active. Therefore, higher deep C-state residency ("C3" or "C6") on some cores will generally result in increased core frequency on the active cores.

- Refer to Intel® Turbo Boost Technology

When I power on my H55H-I MB, I get "no display" & there are some short beeps. What is wrong? 

Please make sure your CPU is Intel Core i5/i3 series with "Intel HD Graphics". First make sure the CPU is in the CPU Support list as the link indicated in CPU tag. Then check the CPU if "Graphics" support. For more detail about the CPU information. Please visit Intel Webstie. If your processor has no “Integrated Graphics”, you must install a PCI-E graphics card to get the display output. Otherwise, you may receive "no display" on this model. For more information about this behavior, please check out the Intel website below.

Can I get the 3 outputs of onboard HDMI,DVI,& D-sub from H55H-I V1.0A at the same time? 

According to the datasheet of Intel 5 series chipset, "it can support up to two different images on different display devices". Therefore, the H55H-I V1.0A does not support 3 outputs of onboard HDMI,DVI,& D-sub working at the same time. It allows you to run any 2 of the onboard graphics simultaneously as below configuration based on Intel's spec.

D-sub + DVI + HDMI
Not support
D-sub + DVI
D-sub + HDMI

Can I install an external PCI Express graphics card and use it in parallel with Intel graphics? 

According to the datasheet of Intel 5 series chipset, Intel graphics cannot be used along with an external PCI Express graphics controller. Installing a PCI Express graphics controller will disable Intel graphics. Please refer to the following website for more information about Multiple Display.


* 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™ i7860s (B1) (82W)N/A2.53 GHz8MBN/A09/14/2010
LGA1156Intel Core™ i7870s (B1) (82W)N/A2.66 GHz8MBN/A09/14/2010
LGA1156Intel Core™ i5650 (C2) (73W)N/A3.20 GHz4MBN/A09/14/2010
LGA1156Intel Core™ i5650 (K0) (73W)N/A3.20GHz4MBN/A09/14/2010
LGA1156Intel Core™ i5655K(K0)(73W)N/A3.20GHz4MBN/A09/14/2010
LGA1156Intel Core™ i5660 (C2) (73W)N/A3.33 GHz4MBN/A09/14/2010
LGA1156Intel Core™ i5660 (K0) (73W)N/A3.33GHz4MBN/A09/14/2010
LGA1156Intel Core™ i5661 (C2) (87W)N/A3.33 GHz4MBN/A09/14/2010
LGA1156Intel Core™ i5661 (K0) (87W)N/A3.33GHz4MBN/A09/14/2010
LGA1156Intel Core™ i5670 (C2) (73W)N/A3.46 GHz4MBN/A09/14/2010
LGA1156Intel Core™ i5670 (K0) (73W)N/A3.46GHz4MBN/A09/14/2010
LGA1156Intel Core™ i5680(K0)(73W)N/A3.60GHz4MBN/A09/14/2010
LGA1156Intel Core™ i5750s (B1) (82W)N/A2.40 GHz8MBN/A09/14/2010
LGA1156Intel Core™ i3530 (C2) (73W)N/A2.93 GHz4MBN/A09/14/2010
LGA1156Intel Core™ i3530 (K0) (73W)N/A2.93GHz4MBN/A09/14/2010
LGA1156Intel Core™ i3540 (C2) (73W)N/A3.06 GHz4MBN/A09/14/2010
LGA1156Intel Core™ i3540 (K0) (73W)N/A3.06GHz4MBN/A09/14/2010
LGA1156Intel Core™ i3550(K0)(73W)N/A3.20GHz4MBN/A09/14/2010
LGA1156Intel PentiumG6950 (C2) (73W)N/A2.80 GHz3MBN/A09/14/2010
LGA1156Intel PentiumG6950 (K0) (73W)N/A2.80GHz3MBN/A09/14/2010

All memory modules on Qualified Vendors List (QVL) have been tested and qualified for use with this motherboard.
Click to download QVL