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Rectangular micro-ATX motherboard in dark finish with silver I/O shield

MSI

MSI ZH77A-G43 Intel H77 LGA 1155 Intel motherboard

SKU CH-9YZ9-G7GWB

Supports third-generation Intel Core processors on LGA 1155 with dual-channel DDR3 up to 32 GB, 8.1-channel Realtek ALC892 audio, Gigabit LAN and USB 3.0 ports on an Intel H77 micro-ATX board

  • CPU Socket TypeLGA 1155
  • CPU TypeThird-generation Intel Core i7/Core i5/Core i3/Pentium/Celer
  • ChipsetIntel H77
  • Memory StandardSupports dual-channel DDR3 2200 (overclocking)/2000 (overclo
  • Maximum Memory Supported32GB
  • PCI Slots1 x PCIe 3.0 x16 slot PCI_E2 up to PCIe 3.0 x16 speeds 1 x P
  • LGA 1155 socket fits third-generation Intel Core i7, i5, i3, Pentium and Celeron CPUs
  • Intel H77 chipset delivers two USB 3.0 rear ports and one internal USB 3.0 header
  • Dual-channel DDR3 support up to 2200 MHz overclocked with 32 GB maximum capacity
  • One PCIe 3.0 x16 slot plus one PCIe 2.0 x16 and one PCIe 2.0 x1 for expansion cards
  • Realtek ALC892 provides 8.1-channel audio and Realtek 8111E gives 10/100/1000 Ethernet

Socket and Chipset

The MSI ZH77A-G43 uses the Intel H77 chipset on an LGA 1155 socket. It accepts third-generation Intel Core i7, i5, i3, Pentium and Celeron processors. Four DDR3 slots support dual-channel memory up to 32GB at speeds from 1066 to 2200 MHz including overclocked steps.

Thermals and Power

The board draws power through standard ATX connectors and regulates voltage for the CPU and memory. Passive heatsinks on the chipset and voltage-regulator zones keep temperatures stable during typical workloads. No active cooling is mounted on the board itself, so system airflow handles the thermal load.

Expansion and Layout

A single PCIe 3.0 x16 slot and one PCIe 2.0 x16 slot running at x4 give room for a graphics card and an add-in device. One PCIe 2.0 x1 slot and three legacy PCI slots add further expansion. Six SATA ports — two at 6 Gb/s and four at 3 Gb/s — provide drive connectivity, while the rear I/O includes two USB 3.0 ports and Gigabit Ethernet from a Realtek 8111E controller.

Points forts

  • LGA 1155 socket fits third-generation Intel Core i7, i5, i3, Pentium and Celeron CPUs
  • Intel H77 chipset delivers two USB 3.0 rear ports and one internal USB 3.0 header
  • Dual-channel DDR3 support up to 2200 MHz overclocked with 32 GB maximum capacity
  • One PCIe 3.0 x16 slot plus one PCIe 2.0 x16 and one PCIe 2.0 x1 for expansion cards
  • Realtek ALC892 provides 8.1-channel audio and Realtek 8111E gives 10/100/1000 Ethernet

Caractéristiques

BrandMSI
SeriesMSI ZH77A-G43
ModelMSI ZH77A-G43
CPU Socket TypeLGA 1155
CPU TypeThird-generation Intel Core i7/Core i5/Core i3/Pentium/Celeron processors that support Socket 1155 architecture
ChipsetIntel H77
Memory StandardSupports dual-channel DDR3 2200 (overclocking)/2000 (overclocking)/1800 (overclocking)/1600/1333/1066MHz memory
Maximum Memory Supported32GB
PCI Slots1 x PCIe 3.0 x16 slot
PCI_E2 up to PCIe 3.0 x16 speeds
1 x PCIe 2.0 x16 slot
PCI_E4 supports up to PCIe 2.0 x4 speeds
1 x PCIe 2.0 x1 slot
3 x PCI slots
SATA RAID4XSATA II interface; 2xSATA III interface
Audio ChipsetRealtek ALC892 Audio Chip
- 8.1 channel sound effects that support intelligent sound interface detection
Compatible with Azalia 1.0 specifications
LAN Chipset1 PCI Express network port supports 10/100/1000 Fast Ethernet provided by Realtek 8111E
Onboard USBIntel H77 chip supports two USB 3.0 I/O ports
Intel H77 chip supports a USB 3.0 internal port

Questions sur cet article

How do I install the LGA 1155 CPU and which step is often missed?

Align the processor notches with the socket keys, lower the retention lever fully, then apply thermal paste before mounting the cooler; skipping the paste causes overheating.

What maintenance will the Realtek ALC892 audio chipset need later?

The onboard audio requires no scheduled maintenance; keep drivers updated and clean dust from the rear I/O ports to avoid static or connection issues over time.

Which limit appears first when the PCIe 3.0 x16 slot runs sustained loads?

The single PCIe 3.0 x16 lane and board power delivery set the practical ceiling; heavy GPU compute will hit bandwidth or thermal limits before other components.

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