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Rectangular ATX motherboard with black PCB, silver CPU socket, four blue DDR3 slots, and metal I/O shield

MSI

MSI 870-SG45 V2 AMD 770 AM3 DDR3 8GB ATX motherboard

SKU CH-QPF0-43EYM

ATX board with AMD 770 chipset, Socket AM3 for Phenom II and Athlon II CPUs, dual-channel DDR3 up to 1600 MHz, 8 GB max, one PCI Express x16 slot, three PCI Express x1 slots, two PCI slots.

  • ProcessorSupports 64-bit AMD Phenom II X6/X4/X3/X2, Athlon II X4/X3/X
  • ChipsetAMD 770
  • CPU socketSocket AM3
  • Supported memorySupport dual-channel DDR3 1600 +/1333/1066/800 MHz memory
  • Max supported RAM8 GB
  • PCI slots1 PCI Express x16 slot supports PCIE 2.0 × 16 speed executio
  • Supports AMD Phenom II and Athlon II processors via Socket AM3
  • AMD 770 chipset provides stable platform for 64-bit computing
  • Dual-channel DDR3 memory up to 1600 MHz with 8GB maximum capacity
  • PCI Express 2.0 x16 slot plus three x1 slots for expansion cards
  • Realtek ALC887 8-channel audio and RTL8111 Gigabit LAN for connectivity

Socket AM3 AMD 770 board

The MSI 870-SG45 V2 is an ATX motherboard built around the AMD 770 chipset for Socket AM3 processors. It supports 64-bit Phenom II, Athlon II and Sempron CPUs and runs dual-channel DDR3 memory up to 1600 MHz with a maximum capacity of 8 GB.

Verify CPU cooler clearance and power connectors

Before ordering, confirm that your AM3 cooler mounting holes match the board layout and that your power supply provides the required 24-pin ATX plus 4-pin or 8-pin CPU power headers. Check that your DDR3 modules are rated for 1600, 1333, 1066 or 800 MHz operation and that you have a free PCI Express x16 slot for a graphics card.

ATX layout with legacy and modern slots

The board uses a standard ATX form factor with one PCI Express x16 slot at 2.0 speed, three PCI Express x1 slots and two conventional PCI slots for older expansion cards. Rear I/O includes four USB 2.0 ports, a Realtek RTL8111 Gigabit LAN port and Realtek ALC887 8-channel audio. Two SATA II connectors handle storage drives.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $38.99
Cheaper than about 94% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameMSI
Product lineMSI 870-SG45 V2
Model nameMSI 870-SG45 V2
Processor
ProcessorSupports 64-bit AMD Phenom II X6/X4/X3/X2, Athlon II X4/X3/X2 and Sempron processors
CPU socketSocket AM3
ChipsetAMD 770
Memory
Supported memorySupport dual-channel DDR3 1600 +/1333/1066/800 MHz memory
Max supported RAM8 GB
Storage
SATA and RAID support2XSATA II interface
Audio & video
Audio chipRealtek ALC887 Chip
- Supports 8-channel sound effects detected by intelligent sound interface
Compatible with Azalia 1.0 specifications
Connectivity
Ethernet controllerRealtek PCI-E 10/1000 LAN Controller RTL8111 Chip
- Support 10Mb/s, 1000Mb/s
Compliant with PCI-Express bus specification v1.0a.
Ports & slots
PCI slots1 PCI Express x16 slot supports PCIE 2.0 × 16 speed execution
3 PCI Express x1 slots
2 PCI slots, supporting 3.3v/5v PCI main bus interface
Onboard USB headers4 USB 2.0 ports (backplane)

Questions about this item

What comes in the box and what must I buy separately?

The package contains the motherboard, a CMOS battery, one SATA cable and a chassis I/O back panel. CPU, DDR3 memory modules, storage drives, graphics card and power supply are not included.

Which DDR3 memory speed should I choose for this board?

The board supports dual-channel DDR3 at 1600, 1333, 1066 and 800 MHz up to 8 GB total. Pick the highest speed your budget allows for best bandwidth.

What does the single PCI Express x16 slot at 2.0 speed mean for my graphics card?

The slot runs at PCIe 2.0 x16, delivering up to 8 GB/s bandwidth. Modern cards will work but may lose a small fraction of performance versus a 3.0 or 4.0 slot.

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