B85M Pro4

1.High Definition Audio supports Jack Sensing, but the panel wire on the chassis must support HDA to function correctly. Please follow the instructions in our manual and chassis manual to install your system.

2.If you use an AC’97 audio panel, please install it to the front panel audio header by the steps below:

A.Connect Mic_IN (MIC) to MIC2_L.

B.Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L.

C.Connect Ground (GND) to Ground (GND).

D.MIC_RET and OUT_RET are for the HD audio panel only. You don’t need to connect them for the AC’97 audio panel.

E.To activate the front mic, go to the “FrontMic” Tab in the Realtek Control panel and adjust “Recording Volume”.

Chassis Speaker Header

(4-pin SPEAKER1)

(see p.10, No. 13)

DUMMY SPEAKER

1

+5V DUMMY

Please connect the chassis speaker to this header.

SPDIF Out Connector

(2-pin SPDIF_OUT1)

(see p.10, No. 24)

1

GND

SPDIFOUT

Please connect the SPDIF_OUT connector of a HDMI VGA card to this header with a cable.

Chassis and Power Fan

Connectors

(4-pin CHA_FAN1)

(see p.10, No. 15)

(3-pin CHA_FAN2) (see p.10, No. 25)

(3-pin PWR_FAN1) (see p.10, No. 1)

CHA_FAN_SPEED

Please connect fan cables

+12V FAN_SPEED_CONTROL

to the fan connectors and

GND

 

 

match the black wire to

 

 

 

 

the ground pin.

GND +12V

CHA_FAN_SPEED

+12V

GND PWR_FAN_SPEED

English

25

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ASRock B85M Pro4 manual Chassis Speaker Header Pin SPEAKER1 See p.10, No
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B85M Pro4 specifications

The ASRock B85M Pro4 is a micro ATX motherboard that caters to budget-conscious users seeking reliable performance and essential features suitable for everyday computing tasks. Built around the Intel B85 chipset, it supports Intel’s 4th generation Core processors, including i3, i5, and i7, for enhanced multi-stream capabilities and power efficiency.

One of the standout features of the B85M Pro4 is its socket LGA 1150, which allows users to install a wide range of Intel CPUs, offering flexibility in terms of performance tiers. Combined with a robust 4-phase power design, this motherboard ensures stable power delivery to the CPU. Its dual-channel DDR3 memory architecture supports up to 32GB of RAM with speeds of 1600/1333 MHz, catering to multitasking and heavy memory applications.

Storage options are plentiful on the B85M Pro4, with four SATA III 6.0 Gb/s ports facilitating fast data transfer for SSDs and HDDs alike. Additionally, it features support for RAID 0, RAID 1, and RAID 10 configurations, enabling users to optimize their data management strategies while enhancing performance and redundancy.

Connectivity is another strong suit of the B85M Pro4. The rear I/O panel includes four USB 3.0 ports for high-speed data transfer, alongside several USB 2.0 connectors. A Gigabit Ethernet port provides reliable internet connectivity, essential for online gaming and streaming. For those who require multiple display outputs, the motherboard offers HDMI, DVI, and VGA ports, making it versatile for various multimedia setups.

In terms of audio, the B85M Pro4 includes an integrated 7.1 channel HD Audio codec, ensuring crisp sound quality for gaming, movies, and music. It provides users with an immersive audio experience without the need for a dedicated sound card. The motherboard's design also incorporates ASRock's Super Alloy technology, enhancing durability and performance under heavy workloads.

Safety features like ASRock’s XFast LAN technology optimize network traffic and reduce latency, while an intelligent software suite offers easy navigation and management of system settings. Overall, the ASRock B85M Pro4 embodies a balanced blend of performance, features, and reliability, making it a great choice for users building an affordable yet capable desktop system.
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