Contents

Safety information
About this guide
Package contents
B85M-K specifications summary
Product introduction
- 1.1 Before you proceed
- 1.2 Motherboard overview
- 1.3 Central Processing Unit (CPU)
- 1.4 System memory
- 1.5 Expansion slots
- 1.6 Jumpers
- 1.7 Connectors
- 1.8 Onboard LEDs
- 1.9 Software support
BIOS information
- 2.1 Managing and updating your BIOS
- 2.2 BIOS setup program
- 2.3 Main menu
- 2.4 Ai Tweaker menu
- 2.5 Advanced menu
- 2.6 Monitor menu
- 2.7 Boot menu
- 2.8 Tools menu
- 2.9 Exit menu
Appendix
- Notices
- ASUS contact information

ASUS B85M-K User Manual

Pages 50

Year 2016

Language(s)

of 50

ASUS B85M-K Motherboard Specification

The ASUS B85M-K is a micro-ATX motherboard designed to support Intel's 4th generation Core i7, i5, and i3 processors in the LGA1150 package. It is built on the Intel B85 chipset, which is ideal for business and multimedia performance needs. The motherboard supports up to 32GB of DDR3 memory across its two DIMM slots, with speeds of 1600/1333 MHz for efficient multitasking. It features ASUS's 5X Protection hardware safeguards, including precise digital power control with DIGI+ VRM, enhanced DRAM overcurrent protection, and ESD guards for component longevity and reliability. Connectivity options include four SATA 6Gb/s ports and two SATA 3Gb/s ports, offering flexibility for storage configurations. It also provides a comprehensive I/O panel with HDMI and DVI-D video outputs, two USB 3.0 ports, and four USB 2.0 ports for versatile peripheral connections. The integrated Realtek ALC887-VD2 8-channel high-definition audio codec ensures immersive audio quality. Networking capabilities are managed by the Realtek 8111G Gigabit Ethernet controller, providing fast and stable internet connectivity. The ASUS B85M-K also features UEFI BIOS with EZ Mode, offering intuitive settings for system customization and optimization. Overall, the ASUS B85M-K motherboard provides a robust and reliable platform for building a high-performance business or home PC, combining essential connectivity, efficient power management, and comprehensive protection features.

ASUS B85M-K Motherboard F.A.Q.

How can I update the BIOS on the ASUS B85M-K motherboard?

To update the BIOS, download the latest BIOS version from the ASUS support website. Use a USB drive to save the file, then enter the BIOS setup by pressing 'Del' during boot. Navigate to the 'Tools' menu and use the 'EZ Flash' utility to select the BIOS file from the USB drive and follow the on-screen instructions.

What should I do if my ASUS B85M-K motherboard does not power on?

First, check the power supply connections to the motherboard. Ensure that the 24-pin ATX and 8-pin CPU power connectors are securely attached. Verify that the power supply switch is turned on and that the outlet is working. If the issue persists, try resetting the CMOS by removing the battery for a few minutes, then reinstalling it.

How can I enable XMP for my RAM on the ASUS B85M-K motherboard?

Enter the BIOS setup by pressing 'Del' during boot. Go to the 'AI Tweaker' menu and find the 'XMP' option. Set it to 'Profile 1' to enable the XMP settings for your RAM. Save and exit the BIOS to apply the changes.

What is the maximum RAM capacity supported by the ASUS B85M-K motherboard?

The ASUS B85M-K motherboard supports a maximum of 32GB of DDR3 RAM, with each of its two DIMM slots accommodating up to 16GB.

How do I connect front panel connectors to the ASUS B85M-K motherboard?

Refer to the motherboard manual for the exact pin layout. The front panel connectors are typically located at the bottom-right corner of the motherboard. Align the connectors with the pins as labeled, ensuring proper orientation for LED and power/reset switch connectors.

Why is my ASUS B85M-K motherboard not detecting the hard drive?

Ensure that the SATA cables are securely connected to both the motherboard and the hard drive. Check the BIOS settings to confirm that the SATA ports are enabled. If the hard drive is not detected, try connecting it to a different SATA port or using a different SATA cable.

How can I enable virtualization on my ASUS B85M-K motherboard?

Enter the BIOS setup by pressing 'Del' during boot. Navigate to the 'Advanced' tab, then select 'CPU Configuration'. Find the 'Intel Virtualization Technology' option and set it to 'Enabled'. Save and exit to apply the changes.

What steps should I follow to troubleshoot USB ports not working on ASUS B85M-K?

First, check the Device Manager in Windows to ensure all USB controllers are properly installed. Update the USB drivers from the ASUS website if necessary. Make sure that USB ports are enabled in the BIOS. Test the ports with different devices to rule out device-specific issues.

How do I reset the BIOS settings to default on the ASUS B85M-K motherboard?

To reset the BIOS settings to default, enter the BIOS setup by pressing 'Del' during boot. Navigate to the 'Exit' menu and select 'Load Setup Defaults'. Confirm the action and then save and exit to apply the changes.

Can the ASUS B85M-K motherboard support M.2 SSDs directly?

The ASUS B85M-K motherboard does not have an M.2 slot. To use an M.2 SSD, you would need a PCIe adapter card that fits into one of the available PCIe slots on the motherboard.