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ASRock B85M Pro4 micro-ATX motherboard, black PCB with blue and grey slots

ASRock

ASRock B85M Pro4 LGA 1150 Intel motherboard

SKU CH-VM5H-ARFB7

Micro-ATX board with LGA 1150 socket supporting 4th Gen Intel Core, Xeon, Pentium and Celeron CPUs, four DDR3 slots up to 32 GB, one PCIe 3.0 x16, four SATA 6Gb/s ports, 7.1 audio and Gigabit LAN

  • Processor4th Gen Intel Core i7 / i5 / i3 / Xeon / Pentium / Celeron (
  • ChipsetIntel B85
  • Form factorMicro ATX
  • CPU socketLGA 1150
  • CPU technologiesTurbo Boost Technology 2.0
  • Memory slot count4 × 240pin
  • Supports 4th Gen Intel Core and Xeon processors on LGA 1150 socket
  • Four DDR3 slots accept up to 32 GB at 1600, 1333 or 1066 speeds
  • PCI Express 3.0 x16 plus PCI Express 2.0 x16 at x4 for graphics and add-in cards
  • Four SATA 6Gb/s ports and Gigabit Intel I217V LAN for storage and networking
  • Realtek ALC892 7.1 channel audio with D-Sub and DVI video outputs

Micro ATX B85 board for LGA 1150 CPUs

This ASRock B85M Pro4 motherboard uses the Intel B85 chipset and an LGA 1150 socket. It supports 4th generation Intel Core i7, i5, i3, Xeon, Pentium and Celeron processors with Turbo Boost Technology 2.0. The Micro ATX form factor suits compact chassis builds.

Dual-channel DDR3 with four slots and dual x16 slots

Four 240-pin slots accept DDR3 memory at 1600, 1333 and 1066 speeds in dual-channel mode. One PCI Express 3.0 x16 slot and a second PCI Express 2.0 x16 slot running at x4 provide graphics and add-in card options. Two legacy PCI slots remain available for older expansion cards.

32 GB memory ceiling and four SATA 6 Gb/s ports

Maximum memory capacity is 32 GB across the four slots. Four SATA 6 Gb/s ports connect storage drives. Realtek ALC892 delivers 7.1-channel audio and an Intel I217V PHY provides 1 Gbps LAN. Video output includes D-Sub and DVI ports alongside a PS/2 keyboard/mouse port.

How it compares

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

Price $59.99
Cheaper than about 78% of the 2,965 comparable items (median $97.99).

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 nameASRock
Model nameB85M Pro4
Processor
Processor4th Gen Intel Core i7 / i5 / i3 / Xeon / Pentium / Celeron (LGA1150)
CPU socketLGA 1150
ChipsetIntel B85
CPU technologiesTurbo Boost Technology 2.0
Memory
Memory slot count4 × 240pin
Supported memoryDDR3 1600/1333/1066
Max supported RAM32 GB
Memory channelsDual Channel
Storage
SATA ports4 x SATA 6Gb/s
Audio & video
Audio chipRealtek ALC892
Sound channels7.1 Channels
Connectivity
Ethernet controllerGiga PHY Intel I217 V
Maximum network speed1 Gbit/s
Ports & slots
PCIe 3.0 x16 slots1 x PCI Express 3.0 x16
PCI slots2 x PCI Slots
PS/2 ports1 x PS/2 keyboard/mouse port
Video connectorsD-Sub + DVI
HDMI ports1 x HDMI
USB 3.0 ports2 x USB 3.0
USB 2.0 ports4 x USB 2.0
Audio jacks5 Ports
Onboard USB headers2 x USB 2.0 headers (support 4 USB 2.0 ports)
1 x USB 3.0 header (supports 2 USB 3.0 ports)
Power
Power connectors24 Pin
Size & build
Form factorMicro ATX
In the box
In the boxASROCK B85M Pro4 MB
Quick Installation Guide
Support CD
I/O Shield
2 x SATA Data Cables
More details
PCI express 2.0 x161(running at x4)
S/PDIF in1 x Optical

Questions about this item

Will the 32GB DDR3 limit appear before the CPU throttles under sustained load?

The board supports up to 32GB of DDR3 across four slots. Memory capacity is the fixed ceiling; CPU thermal behaviour depends on the cooler and case airflow.

How loud and hot does the board get when running all day with a 4th Gen Core i7?

The Intel B85 chipset and Realtek ALC892 audio run passively. Heat and noise come from the CPU cooler and case fans, not from the motherboard itself.

Which DDR3 kit do I need to have on hand before this board will post?

You need DDR3 modules rated for 1600, 1333 or 1066 MT/s in 240-pin DIMM form factor. The board will not work with any other memory type.

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