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Small green Mini-ITX board with black LGA 1155 socket, two DDR3 slots, one PCIe x16 slot, rear I/O shield and silver heatsinks

MSI

MSI B75IA-E33 LGA 1155 Intel B75 motherboard 16GB DDR3

SKU CH-341J-SF5WV

Mini-ITX board with LGA 1155 socket supports 3rd Gen Intel Core i7/i5/i3, dual-channel DDR3 up to 16 GB, one PCIe 3.0 x16 slot, SATA II and III ports, 8-channel Realtek ALC887 audio and Gigabit LAN

  • CPU Socket TypeLGA 1155
  • CPU Type3rd Gen Intel Core i7/Core i5/Core i3/Pentium/Celeron proces
  • ChipsetIntel B75
  • Memory StandardSupport dual-channel DDR3 2400/2200/2000/1800/1600/1333/1066
  • Maximum Memory Supported16GB
  • PCI Slots1 x PCIe 3.0 x16 slot
  • Compact Mini-ITX board fits small cases with LGA 1155 socket
  • Dual-channel DDR3 up to 2400 MHz supports 16 GB maximum memory
  • PCIe 3.0 x16 slot provides full graphics bandwidth
  • Realtek ALC887 delivers 8-channel audio output
  • Gigabit LAN via Realtek 8111E ensures wired connectivity

Socket 1155 Mini-ITX board

The MSI B75IA-E33 is a Mini-ITX motherboard built around the Intel B75 chipset for LGA 1155 processors. It accepts 3rd Gen Intel Core i7, i5, i3, Pentium and Celeron CPUs. The compact form factor suits small-form-factor builds and embedded applications where space is limited.

16 GB dual-channel DDR3 limit

Four memory speeds are supported from 1066 up to 2400 MHz in dual-channel mode. The board caps total system memory at 16 GB, so workloads that exceed this capacity will require a different platform. Two DIMM slots provide the physical headroom for that maximum.

PCIe 3.0 x16 and SATA mix

A single PCIe 3.0 x16 slot handles discrete graphics or add-in cards at full bandwidth. Storage connects through three SATA II ports and one SATA III port, limiting high-speed SSDs to one 6 Gb/s link. Gigabit LAN and 8-channel audio round out the fixed I/O.

Highlights

  • Compact Mini-ITX board fits small cases with LGA 1155 socket
  • Dual-channel DDR3 up to 2400 MHz supports 16 GB maximum memory
  • PCIe 3.0 x16 slot provides full graphics bandwidth
  • Realtek ALC887 delivers 8-channel audio output
  • Gigabit LAN via Realtek 8111E ensures wired connectivity

Specifications

BrandMSI
SeriesMSI B75IA-E33
ModelMSI B75IA-E33
CPU Socket TypeLGA 1155
CPU Type3rd Gen Intel Core i7/Core i5/Core i3/Pentium/Celeron processors with Socket 1155 architecture
ChipsetIntel B75
Memory StandardSupport dual-channel DDR3 2400/2200/2000/1800/1600/1333/1066MHz memory
Maximum Memory Supported16GB
PCI Slots1 x PCIe 3.0 x16 slot
SATA RAID3XSATA II interface; 1xSATA III interface
Audio ChipsetRealtek ALC887 Audio Chip
- Supports 8-channel audio output
- Compliant with Azalia 1.0 specifications
LAN ChipsetLAN 10/100/1000 Fast Ethernet supported by Reaktek 8111 E
Onboard USB4 USB 2.0 ports (backplane)

Questions about this item

Will my existing DDR3 1600 MHz modules run at full speed on the B75IA-E33?

The board supports DDR3 speeds up to 2400 MHz, so 1600 MHz modules will operate at their rated frequency in dual-channel mode up to 16 GB total.

How can I verify the Realtek ALC887 audio is functioning after assembly?

Install the Realtek driver, open the Sound control panel, and confirm 8-channel output is listed and test tones play from each speaker.

Does the box contain everything needed to install the board in a case?

The package includes the motherboard, a CMOS battery, one SATA cable, and the rear I/O shield; CPU cooler, RAM, and any additional cables must be purchased separately.

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