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Green rectangular ATX motherboard with black PCIe slots, silver CPU socket, blue DDR3 DIMM sockets

MSI

MSI Z77A-G43 Intel Z77 motherboard LGA 1155 DDR3 32GB ATX

SKU CH-HAED-TD183

Supports 3rd Gen Intel Core processors with dual-channel DDR3 up to 2667 MHz and 32 GB maximum memory on an Intel Z77 chipset

  • CPU Socket TypeLGA 1155
  • CPU Type3rd Gen Intel Core ™ i7/Core ™ i5/Core ™ i3/Pentium/Celeron
  • ChipsetIntel Z77
  • Memory StandardSupports dual-channel DDR3 2667 (overclocking)/2400 (overclo
  • Maximum Memory Supported32GB
  • PCI Slots1 x PCIe 3.0 x16 slot PCI_E2 up to PCIe 3.0 x16 speeds 1 x P
  • Supports up to 32GB DDR3 memory for multitasking headroom
  • Dual-channel DDR3 up to 2667MHz overclocking speeds available
  • PCIe 3.0 x16 slot enables modern graphics performance
  • 1-channel Realtek ALC892 audio with intelligent detection
  • Gigabit Realtek 8111E LAN for reliable wired networking

LGA 1155 Intel Z77 ATX Board

The MSI Z77A-G43 is an ATX motherboard built on the Intel Z77 chipset for LGA 1155 processors. It supports 3rd Gen Intel Core i7, i5, i3, Pentium and Celeron CPUs. Dual-channel DDR3 memory runs up to 2667 MHz when overclocked with a maximum capacity of 32 GB.

Expansion-focused builders and legacy repair

This board suits builders who need multiple expansion slots including one PCIe 3.0 x16, one PCIe 2.0 x16, one PCIe 2.0 x1 and three PCI slots. It also provides six SATA ports combining 3.0 and 2.0 speeds. Users requiring USB 3.1, M.2 or newer CPU sockets should look elsewhere.

PCIe 3.0 x16 primary graphics slot

The single PCIe 3.0 x16 slot is the specification that decides if this board fits a build. It delivers full 3.0 bandwidth for a modern graphics card while the second x16 slot operates at 2.0 x4 speeds.

Highlights

  • Supports up to 32GB DDR3 memory for multitasking headroom
  • Dual-channel DDR3 up to 2667MHz overclocking speeds available
  • PCIe 3.0 x16 slot enables modern graphics performance
  • 1-channel Realtek ALC892 audio with intelligent detection
  • Gigabit Realtek 8111E LAN for reliable wired networking

Specifications

BrandMSI
SeriesMSI Z77A-G43
ModelMSI Z77A-G43
CPU Socket TypeLGA 1155
CPU Type3rd Gen Intel Core ™ i7/Core ™ i5/Core ™ i3/Pentium/Celeron processors with Socket 1155 architecture
ChipsetIntel Z77
Memory StandardSupports dual-channel DDR3 2667 (overclocking)/2400 (overclocking)/2133 (overclocking)/1866 (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 Z77 chip supports two USB 3.0 I/O ports
Intel Z77 chip supports a USB 3.0 internal port

Questions about this item

Should I pick 16 GB or 32 GB of DDR3 for this Z77 board?

The board supports up to 32 GB of DDR3, so you can install 32 GB if your workloads need it; 16 GB is enough for most everyday tasks and leaves room for later upgrades.

What does the 2667 MHz DDR3 rating mean once the memory is installed?

2667 MHz is an overclocked speed; the board will run DDR3 at standard speeds like 1600 MHz unless you enable the higher profile in BIOS.

Which PCIe generation does the top x16 slot use and what bandwidth does it provide?

The primary slot is PCIe 3.0 x16, giving up to 16 GT/s per lane for graphics cards or other high-bandwidth add-in cards.

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