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Intel Motherboards > 
Item#: N82E16813128420

GIGABYTE GA-H55M-S2H LGA 1156 Intel H55 HDMI Micro ATX Intel Motherboard

  • Intel H55
  • Core i7 / i5 / i3 / Pentium (LGA1156)
  • DDR3 2200+/1800/1600/1333/1066/800
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The Gigabyte GA-H55M-S2H incorporates Intel's brand-new H55 chipset, offering a valuable and affordable motherboard.

As a Micro ATX motherboard, the Gigabyte GA-H55M-S2H supports the latest Intel i3/i5/i7 based processors in LGA1156 package, with Intel H55 chipset, this board provides full support for Intel’s 32nm Clarkdale CPUs with a HD GPU integrated. It also provides full supports for Dual Channel DDR3 SDRAM up to 8GB running at 2200+MHz (OC). Shipped with two PCI-e 2.0 x16 graphics interface with ATI CrossFireX support, upgrading 3D performance will never be a problem.

More advance technologies brought to you by Gigabyte such as AutoGreen technology and DualBIOS technology is waiting for you to discover.

  • newegg Intel Flexible Display Interface Intel H55 chipset supports both Core i7 and Core i5 CPU without an integrated GPU and the latest Intel 32nm Clarkdale Core i3 and Core i5 CPU with an HD GPU so you can enjoy smooth HD movies without an independent graphics card.
  • newegg ATi CrossFireX Multi-GPU Technology Support ATi CrossFireX is the ultimate multi-GPU performance gaming platform, enabling two or more discrete graphics processors to work together for boosted system performance and a breakthrough gaming experience.
  • newegg DDR3 2200+ Support Four 240-pin DIMM sockets support up to 16GB of non-ECC DDR3 memory at speeds of over 2200MHz, ensuring ample capacity for any application.
  • newegg Gigabyte DualBIOS Gigabyte DualBIOS technology protects the BIOS from virus attacks. With its innovative backup BIOS design, this platform provides twice the security thus assuring the PC’s stability.

Learn more about the GIGABYTE GA-H55M-S2H



Supported CPU

CPU Socket Type
LGA 1156
CPU Type
Core i7 / i5 / i3 / Pentium (LGA1156)


Intel H55


Number of Memory Slots
Memory Standard
DDR3 2200+/1800/1600/1333/1066/800
Maximum Memory Supported
Channel Supported
Dual Channel

Expansion Slots

PCI Express 2.0 x16
1 x PCI Express x16 slot, running at x16 (PCIEX16) (The PCIEX16 slot conforms to PCI Express 2.0 standard.)
PCI Express x16
1 x PCI Express x16 slot, running at x4
PCI Slots

Storage Devices

1 x ATA133 2 Dev. Max
SATA 3Gb/s

Onboard Video

Onboard Video Chipset

Onboard Audio

Audio Chipset
Realtek ALC888B
Audio Channels
8 Channels

Onboard LAN

LAN Chipset
Realtek 8111D
Max LAN Speed

Rear Panel Ports

Video Ports
D-Sub + DVI
1 x HDMI
USB 1.1/2.0
8 x USB 2.0
1 x Optical
Audio Ports
6 Ports

Internal I/O Connectors

Onboard USB
4 x USB 2.0

Physical Spec

Form Factor
Micro ATX
9.6" x 8.3"
Power Pin
24 Pin


2 PCI-E 2.0 x16 graphics interface(x16+x4) with ATI CrossFireX support for ultimate graphics performance
Enhanced Intel HD Graphics integrated with the processor

Manufacturer Warranty

3 years limited
3 years limited

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the GIGABYTE GA-H55M-S2H

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  • Latonia F.
  • 2/1/2013 1:31:34 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

4 out of 5 eggsSmall but good features

Pros: Has good features like hdmi port, 6 port audio for surround sound, dual bios, energy efficient its a Gigabyte the makers of the best motherboards.

Cons: Doesnt have a 1394 port but I bought a pci 1394 card for 15 bucks no biggie, only has 2 memory slots so it limits upgrading, only has 2 usb headers, good thing I only needed 2.

Other Thoughts: This is my 2nd Gigabyte motherboard, wanted to build a HTPC (with mid level components) for my bedroom and decided to go a bit cheaper with this one. This motherboard is not spacious but that is expected with micro atx. I accomated room by buying a coolermaster Gemini heatsink which is smaller in size but does the job, it's designed with room to accomodate the huger gaming memory. This motherboard works great, Im satisfied.

Windows 7 64bit
i5 650 3.2GHz CPU
GSkills Ripjaw 8GB 1333MHz Ram
XFX Raedon HD/3D 2GB Graphics Card
Apevia 680 Watt PSU

Did you find this review helpful? Yes No

  • Ken W.
  • 12/2/2012 4:43:19 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsIncredible value and overclocker!

Pros: Core i3-540 running completely stable at 4.6 GHz (23 * 200 BCLK with Antec Kuhler 620). Running Crucial 1600 MHz DDR3 with relaxed timings (11-11-11-30-1T) at 2000 MHz. I have owned this board for over two years with no issues.

Cons: Price was mid-range ($89.99) and this board really doesn't have much of an upgrade path at this point now that LGA 1155 has become the mainstream socket.

Did you find this review helpful? Yes No

  • Jordan H.
  • 7/26/2011 6:15:03 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsNot a fan of tech support

Pros: This is a solid performer, compact and does everything it needs to at a reasonable price. Well, it did for about 11 months.

Cons: Things break, it happens. The HDMI out on the mobo no longer works. CPU works fine in other mobos, HDMI on the TV works fine with other PCs. VGA/DVI on the mobo works fine.

HDMI just isn't working. Sent it to Gigabyte. They waited 20 days and sent it back. No correspondence, no notice in the box of what was repaired, no comments from a tech, no nothing. Just a box with my mobo in it.

HDMI still doesn't work.

I'd love to email someone and tell them but I can't, because RMA notices are sent through a web form. In no way whatsoever does Gigabyte expect you to speak with a person.

Other Thoughts: I've got no problem with the motherboard, but tech support that won't even speak to you just feels a bit insulting. Looking for other options because from start to finish It took 41 days to get my (still broken) motherboard back.

3 stars for that.

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  • Stephen g.
  • 9/4/2010 9:33:47 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsfanboy gets bit

Pros: Nice looking, works well for up to 48 hours under full tilt load. I a big fan of GigaByte mobos. Have several, some of my G31s have been running full tilt with Q66s in them for years.

Cons: 2nd one just arc'd something near the regulators on the mobo. This is the replacement GigaB RMA'd for the prior one that just quit booting.

Other Thoughts: Problem may be particular to my usage in that I'm using i7-8xx quads with HT on and running 8 100% load tasks 24/7 (well, if they'd gotten to '7'). I suspect they'd be fine with less load. I replaced the first one with a P55 w/o issue. So I'd recommend P55 if you're going i7-8xx and will run it 24/7 under load. Lighter usage or i3 this mobo s/b fine. Need to talk to GigaB I think 2 of them is enough patience on my part. I want a P55 this time even if I have to pay the diff.

0 out of 1 people found this review helpful. Did you? Yes No

  • Jack F.
  • 8/29/2010 6:58:13 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

5 out of 5 eggsWorks great for a Whodows Home Server

Pros: Super easy assembly and installation. I used an i3 - 530

This is being used for a Windows Home Server (WHS) with 2 WD 1Tb green drives. I'm using the stock cooler - and the bios is showing temps around 30c.

Very - very quiet system.

Cons: I had a bit of a hard time finding a driver for the network connection. I ended up getting an XP driver (which is the same as used in Server 2003). That got the network connection working. The updates took care of getting the correct drivers for everything else.

The CD didn't have (or I could not find it) the driver that would work with WHS.

Other Thoughts: System is super stable - updating all my home pc's every night and hosting my webpage.

I put this together with some old spare parts. I actually got the M/B at a local retailer, but I did get the CPU, memory, and hard-drives from NewEgg which rocks as usual.

Did you find this review helpful? Yes No

  • Elia C.
  • 8/21/2010 4:15:47 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsfast

Pros: i built a very nice machine with this board,using an intel i3 550,and only 2 gigs of gskill ram,all apps respond quickly and even my web pages just flash open,I also connected this to my samsung 32" tv via hdmi and i can watch just like standard tv,but not as clear as a dvd or hd.

Cons: none, the board is only $89 whats to complain about

Other Thoughts: none of this excites my wife :)

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  • josh b.
  • 8/8/2010 4:56:45 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsgreat motherboard

Pros: works great installed a i5 750 4 gb of ddr3 1333 ram with no problems

Cons: none

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  • Anonymous
  • 7/31/2010 4:02:46 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGood Basic motherboard

Pros: Designed for a simple system. Operates fast and without heat buildup. Has had heavy use for 3 months without problems.

Cons: lacks RAID, but users of this board will not miss this

Other Thoughts: Gigabyte quality lends confidence to a purchase of one of its motherboards

Did you find this review helpful? Yes No

  • Sean K.
  • 7/28/2010 10:35:07 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsWARNING: Not PCI Compliant

Pros: It's small

Cons: Back of PCI slots are blocked. This means you can't use 64-bit PCI-X cards (such as the Adaptec 29160) in this mobo. This is a violation of the PCI specification.

Manufacturer Response:

Thank you for your comments. Honest and constructive opinions are always welcome. We apologize for your difficulty with your Gigabyte product. Please contact us at with the case number 2010080304 in the subject line. We will provide personalized service and analysis to help solve your issue as soon as possible.

If the matter is urgent, please send us your contact number, and we will contact you ASAP.

Gigabyte VIP Support Team

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  • Joseph K.
  • 6/26/2010 8:56:21 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGigabyte Quality

Pros: It's an H55 motherboard from Gigabyte. I used this for an HTPC build with a Core i3 processor and the integrated video is superb for this application. I was on the fence between miniITX and microATX, but I'm very glad I went with this board.

Cons: I would have liked IEEE 1394, but this is not a huge deal, no eggs lost for that.

Other Thoughts: I've been a Gigabyte fan since I converted from ASUS around 7 years ago. They have not let me down since, and every Gigabyte motherboard or graphics card I've purchased since that day is still in working order.

Did you find this review helpful? Yes No

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Item#: N82E16813128420
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