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Rectangular ATX motherboard in dark finish with silver heatsinks and black expansion slots

MSI

MSI H170 GAMING M3 Intel motherboard

SKU CH-GSZ8-VTT91

Supports 6th-generation Intel Core i3, i5 and i7 processors on LGA 1151 with dual-channel DDR4 2133 memory up to 64 GB, Intel H170 chipset, Realtek ALC1150 7.1 audio.

  • CPU Socket TypeLGA 1151
  • CPU Type6th generation Intel Core ™ i3/i5/i7, Intel Pentium/Celeron
  • ChipsetIntel H170
  • Memory StandardSupports dual-channel DDR4 2133MHz memory
  • Maximum Memory Supported64GB
  • PCI Slots2 PCIe 3.0 x16 slots 2 PCIe 3.0 x1 slots 3 PCI slots
  • Supports 64 GB DDR4 2133 MHz memory for large workloads
  • Two PCIe 3.0 x16 slots enable multi-GPU configurations
  • Realtek ALC1150 delivers 7.1 channel high-quality sound
  • Killer E2400 Gigabit LAN provides low-latency networking
  • Six USB 3.1 Gen1 and six USB 2.0 ports give abundant connectivity

Socket LGA 1151 gaming board

The MSI H170 GAMING M3 is an Intel H170 motherboard built for 6th generation Core i3, i5 and i7 processors plus Pentium and Celeron CPUs using the LGA 1151 socket. It supports dual-channel DDR4 memory at 2133 MHz up to 64 GB. Expansion includes two PCIe 3.0 x16 slots, two PCIe 3.0 x1 slots and three legacy PCI slots for add-in cards.

Thermals noise and power draw

The H170 chipset runs cool enough for passive cooling in typical desktop workloads, keeping system noise low during everyday tasks. Onboard voltage regulation feeds the CPU and memory without extra fan headers dedicated to the chipset itself. Power draw stays modest with mainstream 6th generation processors installed.

Sustained load behaviour

Under prolonged heavy compute or multi-GPU loads the board maintains stable voltage delivery to the CPU and PCIe 3.0 slots. The Realtek ALC1150 audio codec and Killer E2400 Gigabit LAN continue operating without throttling. Six SATA III ports plus one M.2 and one SATA Express interface keep storage bandwidth consistent during extended transfers.

Highlights

  • Supports 64 GB DDR4 2133 MHz memory for large workloads
  • Two PCIe 3.0 x16 slots enable multi-GPU configurations
  • Realtek ALC1150 delivers 7.1 channel high-quality sound
  • Killer E2400 Gigabit LAN provides low-latency networking
  • Six USB 3.1 Gen1 and six USB 2.0 ports give abundant connectivity

Specifications

BrandMSI
SeriesMSI H170 GAMING M3
ModelMSI H170 GAMING M3
CPU Socket TypeLGA 1151
CPU Type6th generation Intel Core ™ i3/i5/i7, Intel Pentium/Celeron processors with LGA1151 architecture
ChipsetIntel H170
Memory StandardSupports dual-channel DDR4 2133MHz memory
Maximum Memory Supported64GB
PCI Slots2 PCIe 3.0 x16 slots
2 PCIe 3.0 x1 slots
3 PCI slots
SATA RAID1XM.2 interface, 1xSATA Express interface, 6xSATA III interface
Audio ChipsetRealtek ALC1150 Decoder Chip
- 7.1 channel high-quality sound effects
- Supports S/PDIF output
LAN Chipset1 Killer ™ E2400 Gigabit network interface card
Onboard USB- 6 USB 3.1 Gen1 (SuperSpeed USB) ports (4 on the backplane, 2 via onboard USB ports)
- 6 USB 2.0 (High-speed USB) ports (4 on the backplane, 2 via onboard USB ports)

Questions about this item

How do I install the CPU into the LGA 1151 socket without bending pins?

Lift the retention lever, align the processor triangle with the socket corner, place it in gently without pressure, then lower and lock the lever. The step people miss is skipping the alignment marks and forcing the chip.

What maintenance will the onboard Realtek ALC1150 audio and Killer E2400 LAN need later?

No scheduled maintenance is required for either controller. If audio degrades, update the Realtek driver. If network drops appear, reinstall the Killer driver or test with a known-good cable before assuming hardware failure.

At what point does the DDR4 2133MHz memory limit become the bottleneck under sustained load?

The board caps memory speed at 2133MHz. In extended gaming or rendering sessions, that ceiling is reached first when the CPU requests faster data rates than the memory controller can deliver.

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