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Rectangular green ATX motherboard with silver heatsinks and black expansion slots

MSI

MSI 870-C45 V2 AMD motherboard Socket AM3 770 chipset

SKU CH-MDW0-0V946

Socket AM3 board with AMD 770 chipset, dual-channel DDR3 up to 1600 MHz, 8 GB max, one PCIe x16 slot, three PCIe x1 slots, two PCI slots, six SATA ports, Realtek ALC887 audio and Gigabit LAN

  • ProcessorSupports 64-bit AMD Phenom II X6/X4/X3/X2, Athlon II X4/X3/X
  • ChipsetAMD 770
  • CPU socketSocket AM3
  • Supported memorySupports dual-channel DDR3 1600 (overclocking)/1333/1066/800
  • Max supported RAM8 GB
  • PCI slots1 PCI Express x16 slot supports PCIE 2.0 × 16 speed executio
  • Supports up to 8GB dual-channel DDR3 memory for responsive multitasking
  • PCI Express 2.0 x16 slot enables modern graphics card performance
  • Six SATA II ports provide ample storage connectivity options
  • Realtek ALC887 delivers 8-channel high-definition audio quality
  • Gigabit LAN controller ensures reliable wired network speeds

Socket AM3 platform for Phenom II

This ATX board uses the AMD 770 chipset and a Socket AM3 CPU interface. It accepts 64-bit Phenom II X6, X4, X3, X2, Athlon II X4, X3, X2 and Sempron processors. Dual-channel DDR3 memory runs at 1600 (overclocking), 1333, 1066 or 800 MHz up to a maximum of 8 GB.

Thermals noise and power in normal use

The board draws power through standard ATX and 4-pin CPU connectors without exotic phases or heatsinks detailed in the data. Passive chipset cooling and the voltage-regulator area run quietly under typical desktop loads. No fan headers or thermal sensors are listed, so acoustic behaviour depends on the case fans you install.

Build quality connectors and daily implications

Expansion includes one PCI Express x16 slot at 2.0 x16 speed, three PCI Express x1 slots and two legacy PCI slots. Six SATA II ports provide storage connectivity. Rear I/O supplies six USB 2.0 ports and a Realtek 8111E Gigabit LAN port for 10, 100 and 1000 Mb/s networks. Audio uses the Realtek ALC887 codec with 8-channel support and Azalia 1.0 compliance. A CMOS battery, one SATA cable and an I/O shield are bundled.

How it compares

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

Price $40.99
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-C45 V2
Model nameMSI 870-C45 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 memorySupports dual-channel DDR3 1600 (overclocking)/1333/1066/800 MHz memory
Max supported RAM8 GB
Storage
SATA and RAID support6XSATA 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 GbLAN Controller 8111E Chip
- Supports 10Mb/s, 100Mb/s and 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 headers6 USB 2.0 ports (backplane)

Questions about this item

How do I install the CPU into the Socket AM3 on this board, and what step do people often miss?

Align the golden triangle on the processor with the socket corner, lower the lever fully, then attach the cooler — many forget to remove the plastic socket cover first.

Which component on the MSI 870-C45 V2 will need replacement first during long-term use?

The supplied CMOS battery powers the real-time clock and BIOS settings; it typically lasts several years before the system loses date or reverts to defaults.

What limit appears first when the Realtek 8111E LAN runs at 1000 Mb/s continuously?

The PCI-Express 1.0a link caps sustained throughput at the bus specification maximum, so prolonged gigabit transfers hit that ceiling before the controller itself.

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