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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

  • CPU Socket TypeLGA 1150
  • CPU Type4th Gen Intel Core i7 / i5 / i3 / Xeon / Pentium / Celeron (
  • Supported CPU TechnologiesTurbo Boost Technology 2.0
  • ChipsetIntel B85
  • Number of Memory Slots4x240pin
  • Memory StandardDDR3 1600/1333/1066
  • 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.

Highlights

  • 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

Specifications

BrandASRock
ModelB85M Pro4
CPU Socket TypeLGA 1150
CPU Type4th Gen Intel Core i7 / i5 / i3 / Xeon / Pentium / Celeron (LGA1150)
Supported CPU TechnologiesTurbo Boost Technology 2.0
ChipsetIntel B85
Number of Memory Slots4x240pin
Memory StandardDDR3 1600/1333/1066
Maximum Memory Supported32GB
Channel SupportedDual Channel
PCI Express 3.0 x161 x PCI Express 3.0 x16
PCI Express 2.0 x161(running at x4)
PCI Slots2 x PCI Slots
Serial ATA (SATA)4 x SATA 6Gb/s
Audio ChipsetRealtek ALC892
Audio Channels7.1 Channels
LAN ChipsetGiga PHY Intel I217V
Max LAN Speed1Gbps
PS/21 x PS/2 keyboard/mouse port
Video PortsD-Sub + DVI
HDMI1 x HDMI
USB 3.02 x USB 3.0
USB 1.1/2.04 x USB 2.0
S/PDIF In1 x Optical
Audio Ports5 Ports
Onboard USB2 x USB 2.0 headers (support 4 USB 2.0 ports)
1 x USB 3.0 header (supports 2 USB 3.0 ports)
Other Connectors1 x IR header
1 x Print Port header
1 x COM Port header
1 x Chassis Intrusion header
1 x TPM header
2 x CPU Fan connectors (1 x 4-pin, 1 x 3-pin)
2 x Chassis Fan connectors (1 x 4-pin, 1 x 3-pin)
1 x Power Fan connector (3-pin)
1 x 24 pin ATX power connector
1 x 8 pin 12V power connector
1 x Front panel audio connector
1 x SPDIF Out connector
Form FactorMicro ATX
Power Pin24 Pin
FeaturesA-Style : Home Cloud
Supports 4th Gen Intel Core i7 / i5 / i3 / Xeon / Pentium / Celeron in LGA1150 Package
Supports Intel Small Business Advantage 2.0
All Solid Capacitor design, Digi Power
Supports Dual Channel DDR3 1600
1 x PCIe 3.0 x16, 1 x PCIe 2.0 x16
Supports AMD Quad CrossFireX, CrossFireX
Multi VGA Output Options : DVI-D, D-Sub, HDMI
Intel Gigabit LAN
7.1 CH HD Audio with Content Protection (Realtek ALC892 Audio Codec)
4 x SATA3, 2 x SATA2, 4 x USB 3.0, 8 x USB 2.0
Supports A-Tuning, XFast 555, Easy Driver Installer, FAN-Tastic Tuning, USB Key
Package ContentsASROCK B85M Pro4 MB
Quick Installation Guide
Support CD
I/O Shield
2 x SATA Data Cables

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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