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Green Micro ATX motherboard with silver LGA 1156 socket and black expansion slots

MSI

MSI H55M-E33 LGA 1156 Intel H55 DDR3 16GB Micro ATX Motherboard

SKU CH-65FE-N6E5J

Micro ATX board for LGA 1156 Intel i3/i5/i7 CPUs with DDR3 up to 2133 MHz, 16 GB max, PCIe 2.0 slots, six SATA II ports and Realtek 7.1 audio

  • CPU Socket TypeLGA 1156
  • CPU TypeIntel i3/i5/i7 based processors with Socket 1156 architectur
  • ChipsetIntel H55
  • Memory StandardSupports dual-channel DDR3 2133 (overclocking)/2000 (overclo
  • Maximum Memory Supported16GB
  • PCI Slots1 PCI Express x16 slot (supports PCI Express bus specificati
  • Supports up to 16GB dual-channel DDR3 memory
  • LGA 1156 socket fits Intel i3 i5 i7 processors
  • Intel H55 chipset with PCI Express 2.0 expansion slots
  • Realtek ALC889 delivers 7.1 channel audio
  • Realtek 8111DL provides 10 100 1000 Ethernet connectivity

Socket and chipset

The MSI H55M-E33 is a Micro ATX motherboard built on the Intel H55 chipset for LGA 1156 processors. It accepts Intel i3, i5 and i7 CPUs using the 1156 architecture. The board provides a compact foundation for a desktop build using this platform.

Memory capacity and speeds

The single specification that determines fit is the 16GB maximum memory limit across dual-channel DDR3 slots. Supported frequencies include 1066, 1333, 1600, 1800, 2000 and 2133 MHz, with the higher speeds requiring overclocking. Exceeding the 16GB ceiling is not possible on this hardware.

Expansion and connectivity

A single PCI Express x16 slot at v2.0 handles the graphics card, while a PCI Express x1 slot and a 32-bit PCI 2.3 slot cover add-in cards. Six SATA II ports provide storage connections, and six USB 2.0 ports sit on the rear panel. Onboard audio uses the Realtek ALC889 codec for 7.1 channel output, and a Realtek 8111DL controller supplies 10/100/1000 Ethernet.

Highlights

  • Supports up to 16GB dual-channel DDR3 memory
  • LGA 1156 socket fits Intel i3 i5 i7 processors
  • Intel H55 chipset with PCI Express 2.0 expansion slots
  • Realtek ALC889 delivers 7.1 channel audio
  • Realtek 8111DL provides 10 100 1000 Ethernet connectivity

Specifications

BrandMSI
SeriesMSI H55M-E33
ModelMSI H55M-E33
CPU Socket TypeLGA 1156
CPU TypeIntel i3/i5/i7 based processors with Socket 1156 architecture
ChipsetIntel H55
Memory StandardSupports dual-channel DDR3 2133 (overclocking)/2000 (overclocking)/1800 (overclocking)/1600 (overclocking)/1333/1066MHz memory
Maximum Memory Supported16GB
PCI Slots1 PCI Express x16 slot (supports PCI Express bus specification v2.0)
1 PCI Express x1 slot (supports PCI Express bus specification v2.0)
1 PCI 2.3 specification 32-bit main bus slot (supports 3.3v/5v PCI main bus interface)
SATA RAID6XSATA II interface
Audio ChipsetRealtek ALC889 Audio Chip
Support 7.1 channel sound effects detected by intelligent sound interface
Compatible with Azalia 1.0 specifications
Compliant with Microsoft Vista Premium specifications
LAN Chipset1 PCI Express network port supports 10/100/1000 Fast Ethernet provided by Realtek 8111DL
Onboard USB6 USB 2.0 ports (backplane)

Questions about this item

What does the 16GB maximum memory mean for a real build?

You can install up to 16GB of DDR3 across the board's slots, giving headroom for multitasking and older games on an LGA 1156 platform.

How does the PCI Express 2.0 x16 slot limit a graphics card in practice?

The slot runs at PCI Express 2.0 speeds, so newer cards will work but may lose a small fraction of bandwidth compared with a 3.0 or 4.0 platform.

What mounting holes and power connectors does this Micro ATX board need?

It uses standard Micro ATX mounting points, a 24-pin ATX power connector and a 4-pin CPU power header for the LGA 1156 socket.

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