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Green Micro ATX motherboard with silver LGA 1150 socket, four black DDR3 slots, blue PCIe x16 slot, white PCI slots, black SATA ports

MSI

MSI H81-P33 Intel H81 LGA 1150 DDR3 16GB Micro ATX Motherboard

SKU CH-05RK-V1VR5

An LGA 1150 Micro ATX board with the Intel H81 chipset supporting 4th generation Core processors, dual-channel DDR3 up to 16 GB, one PCIe 2.0 x16 slot, two PCIe x1 slots, three PCI slots.

  • CPU Socket TypeLGA 1150
  • CPU Type4th generation Intel Core i7/Core i5/Core i3/Pentium/Celeron
  • ChipsetIntel H81
  • Memory StandardSupports dual-channel DDR3 1600/1333/1066MHz memory
  • Maximum Memory Supported16GB
  • PCI Slots1 PCIe 2.0 x16 slot 2 PCIe x1 slots 3 PCI slots
  • Supports 4th-gen Intel Core i7/i5/i3 on LGA 1150 socket
  • Dual-channel DDR3 memory up to 16 GB at 1600 MHz
  • One PCIe 2.0 x16 slot plus two PCIe x1 and three PCI slots
  • Two SATA III and two SATA II ports for storage flexibility
  • Realtek ALC887 8-channel audio with Azalia 1.0 compliance

Socket 1150 micro-ATX board for 4th-gen Intel CPUs

The MSI H81-P33 fits a micro-ATX chassis and accepts LGA 1150 processors including Core i7, i5, i3, Pentium and Celeron models. It delivers a compact platform for office or home builds that do not need full-size ATX expansion. Dual-channel DDR3 support keeps memory costs low while the H81 chipset handles everyday workloads.

PCIe 2.0 and SATA limits define expansion headroom

A single PCIe 2.0 x16 slot provides graphics connectivity at 2.0 speeds, while two PCIe x1 slots and three legacy PCI slots cover older add-in cards. Storage connects through two SATA III and two SATA II ports, capping drive throughput at the respective interface ceilings. The Realtek 8111G LAN controller tops out at 1000 Mbps wired throughput.

16 GB DDR3 ceiling decides upgrade scope

Four memory slots accept DDR3 modules at 1600, 1333 or 1066 MHz, but the chipset hard-limits total capacity to 16 GB. If the intended workload needs more memory, a different chipset is required. The Realtek ALC887 codec supplies 8-channel audio and USB 3.0 is available from both the chipset and a Renesas controller.

Highlights

  • Supports 4th-gen Intel Core i7/i5/i3 on LGA 1150 socket
  • Dual-channel DDR3 memory up to 16 GB at 1600 MHz
  • One PCIe 2.0 x16 slot plus two PCIe x1 and three PCI slots
  • Two SATA III and two SATA II ports for storage flexibility
  • Realtek ALC887 8-channel audio with Azalia 1.0 compliance

Specifications

BrandMSI
SeriesMSI H81-P33
ModelMSI H81-P33
CPU Socket TypeLGA 1150
CPU Type4th generation Intel Core i7/Core i5/Core i3/Pentium/Celeron processors with Socket 1150 architecture
ChipsetIntel H81
Memory StandardSupports dual-channel DDR3 1600/1333/1066MHz memory
Maximum Memory Supported16GB
PCI Slots1 PCIe 2.0 x16 slot
2 PCIe x1 slots
3 PCI slots
SATA RAID2XSATA III interface, 2xSATA II interface
Audio ChipsetChip integrated by Realtek ALC887
- Supports 8-channel audio output
- Compliant with Azalia 1.0 specifications
LAN Chipset1 PCI Express network port supporting 10/100/1000 Fast Ethernet provided by Realtek 8111G
Onboard USBIntel RENESAS/UPD720202K8 (front-end) supports 2 USB3.0
Intel H81 chip supports 2 USB3.0

Questions about this item

Should I choose the 16GB DDR3 1600MHz version or a slower kit?

The board runs dual-channel DDR3 at 1600, 1333 or 1066MHz. A 1600MHz kit uses the top supported speed, while slower modules will downclock automatically.

What does the 16GB maximum memory figure mean once the board is installed?

You can populate the two DIMM slots with up to 8GB modules each, giving a total of 16GB system memory for the operating system and applications.

Which SATA standard does the H81 chipset cap at in practice?

The chipset provides two SATA III ports at 6Gb/s and two SATA II ports at 3Gb/s, so only drives on the first two connectors reach the higher transfer rate.

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