Serial port connector 10-1 pin COM

5.Serial port connector (10-1 pin COM)

This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis.

COM

CTS

DSR

DTR

RXD

PIN 1

DCD TXD GND RTS RI

F2A85-M

F2A85-M Serial port (COM) connector

The COM module is purchased separately.

6.CPU and chassis fan connectors (3-pin PWR FAN, 4-pin CPU_FAN, and 4-pin CHA_FAN)

Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector.

F2A85-M

PWR_FAN CPU_FAN

Rotation +12V GND

CPU FAN PWM CPU FAN IN CPU FAN PWR GND

CHA_FAN

GND

CHA FAN PWR

CHA FAN IN

CHA FAN DC Mode

F2A85-M Fan connectors

Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors!

• The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.

• Only the 4-pin CPU fan and CHA FAN can support ASUS FanXpert feature.

1-28	Chapter 1: Product introduction

F2A85-M specifications

The Asus F2A85-M is a micro-ATX motherboard tailored for AMD A-Series processors, making it an excellent choice for users who seek a compact yet powerful computing solution. Designed with performance and versatility in mind, this motherboard supports the FM2 socket and is capable of accommodating Ryzen processors with an applicable BIOS update.

One of the standout features of the F2A85-M is its support for AMD's Richland and Trinity A-series APUs, which integrate both CPU and GPU capabilities, providing excellent performance for gaming and multimedia tasks without the need for a discrete graphics card. The board supports up to 64GB of DDR3 memory across four DIMM slots, operating at speeds up to 2400 MHz, allowing for a smooth multitasking experience.

Connectivity is a strong point for the F2A85-M, featuring USB 3.0 ports for lightning-fast data transfers and extensive I/O options. It includes HDMI, DVI, and VGA outputs, enabling users to connect multiple displays easily, which is particularly beneficial for graphic designers and video editors. The onboard 8-channel HD audio with ASUS’ exclusive Crystal Sound technology delivers impressive audio quality for a more immersive gaming experience or lifelike media playback.

The motherboard incorporates ASUS' proprietary UEFI BIOS, which simplifies the overclocking process and allows users to easily customize their computing experience. With features like Dual Intelligent Processors 4 (DIP4), users can optimize power consumption and improve overall system stability.

For storage, the F2A85-M provides six SATA III ports, facilitating rapid data transfer with modern SSDs and HDDs. Its RAID support further enhances data security and performance, catering to users who require redundancy or speed boosts in their storage solutions.

In terms of build-quality, the F2A85-M utilizes high-quality capacitors and components, ensuring longevity and reliability for system builders seeking stability in their setups.

Overall, the Asus F2A85-M is a feature-rich motherboard that combines performance and reliability, making it an ideal choice for a wide range of computing needs, from casual gaming to professional workloads. With its blend of modern technologies and thoughtful design, it stands out as a solid option in the micro-ATX motherboard market.