Motherboard PRIME B650M-K
E21896 First Edition May 2023 Copyright © 2023 ASUSTeK COMPUTER INC. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
Contents Safety information....................................................................................................... iv About this guide........................................................................................................... v Package contents........................................................................................................ vi PRIME B650M-K specifications summary................................................................
Safety information Electrical safety • To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. • When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.
About this guide This user guide contains the information you need when installing and configuring the motherboard. How this guide is organized This guide contains the following parts: • Chapter 1: Product Introduction This chapter describes the features of the motherboard and the new technology it supports. It includes descriptions of the switches, jumpers, and connectors on the motherboard.
Package contents Check your motherboard package for the following items. Motherboard 1 x PRIME B650M-K motherboard Cables 2 x SATA 6Gb/s cables Miscellaneous 1 x I/O Shield 1 x M.2 Rubber Package 1 x Screw package for M.2 SSD Documentation 1 x User guide If any of the above items is damaged or missing, contact your retailer. PRIME B650M-K specifications summary CPU Chipset AMD Socket AM5 for AMD Ryzen™ 7000 Series Desktop Processors* * Refer to www.asus.com for CPU support list.
PRIME B650M-K specifications summary Ethernet 1 x Realtek 2.5Gb Ethernet Rear USB (Total 8 ports) 2 x USB 3.2 Gen 2 (10G) ports (2 x Type-A) 2 x USB 3.2 Gen 1 (5G) ports (2 x Type-A) USB 4 x USB 2.0 ports (4 x Type-A) Front USB (Total 7 ports) 1 x USB 3.2 Gen 1 (5G) connector (supports USB Type-C®) 1 x USB 3.2 Gen 1 (5G) header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Realtek 7.
PRIME B650M-K specifications summary Miscellaneous 2 x Addressable Gen 2 headers 1 x Aura RGB header 1 x Clear CMOS header Internal I/O Connectors 1 x COM Port header 1 x Front Panel Audio header (AAFP) 1 x S/PDIF Out header 1 x Speaker header 1 x SPI TPM header (14-1pin) 1 x 10-1 pin System Panel header ASUS 5X PROTECTION III - DIGI+ VRM - LANGuard - Overvoltage Protection - SafeSlot Core+ - Stainless-Steel Back I/O Special Features ASUS Q-Design - Q-DIMM - Q-LED Core - Q-Slot ASUS Thermal Solution - M.
PRIME B650M-K specifications summary UEFI BIOS Software Features ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode BIOS 256 Mb Flash ROM, UEFI AMI BIOS Manageability WOL by PME, PXE Operating System Windows® 11, Windows® 10 64-bit Form Factor Micro-ATX Form Factor 9.6 inch x 8.7 inch (24.4 cm x 22.1 cm) • Specifications are subject to change without notice. Please refer to the ASUS website for the latest specifications.
x
Product Introduction 1.1 Before you proceed 1 Take note of the following precautions before you install motherboard components or change any motherboard settings. • Unplug the power cord from the wall socket before touching any component. • Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity. • Hold components by the edges to avoid touching the ICs on them.
Motherboard overview KBMS_U32G1_34 6 22.1cm(8.7in) 1 4 DIGI+ VRM ATX_12V 2 CPU_FAN BIOS_FLBK VGA SOCKET AM5 USB_5_1_2_13 18 2280 2260 U32_C6 AUDIO PCIE SATA 5.0 X4 X CHA_FAN1 4 5 U32G1_89 TPM 256Mb BIOS LAN_U32G2_1011 2242 11 ATX_PWR HDMI DDR5 DIMM_B (64bit, 288-pin module) FLBK_LED DDR5 DIMM_A (64bit, 288-pin module) 20 24.4cm(9.6in) 5 ADD_GEN 2_1 ADD_GEN 2_2 1.2 9 8 M.2_1(SOCKET3) PCIEX16 Super I/O Ethernet 3 6 AMD B650 PCIEX1_1 M.2_2(SOCKET3) PCIE SATA 4.
3. Expansion slots This motherboard supports one PCIe 4.0 x16 graphics card and two PCIe 4.0 x1 network cards, SCSI cards and other cards that comply with the PCI Express specification. Additional PCIe bifurcation and M.2 settings for RAID function are also supported when a Hyper M.2 x16 series card is installed. • For full details on the PCIe bifurcation, you may visit the support site at https://www.asus.com/support/FAQ/1037507/. • The Hyper M.2 x16 series card is sold separately.
9. USB 3.2 Gen 1 header The USB 3.2 Gen 1 header allows you to connect a USB 3.2 Gen 1 module for additional USB 3.2 Gen 1 ports. The USB 3.2 Gen 1 header provides data transfer speeds of up to 5 Gb/s. The USB 3.2 Gen 1 module is purchased separately. PIN 1 USB3+5V IntA_P1_SSRXIntA_P1_SSRX+ GND IntA_P1_SSTXIntA_P1_SSTX+ GND IntA_P1_DIntA_P1_D+ GND USB3+5V IntA_P2_SSRXIntA_P2_SSRX+ GND IntA_P2_SSTXIntA_P2_SSTX+ GND IntA_P2_DIntA_P2_D+ 10. USB 2.
• Actual lighting and color will vary with LED strip. • If your LED strip does not light up, check if the RGB LED extension cable and the RGB LED strip are connected in the correct orientation, and the 12VCC2 connector isVBUS TX1+ D+ TX1Daligned with the 12V header on the motherboard. GND • The LED strip will only light up when the system is powered on. • The LED strip is purchased separately. GND RX2RX2+ GND TX2TX2+ VBUS RX1+ RX1VBUS CC1 NC NC 13.
TX1+ TX1GND RX1+ RX1VBUS CC1 NC NC D+ DGND RX2RX2+ GND TX2TX2+ VBUS 16. S/PDIF Out header SPDIF_OUT The S/PDIF Out header allows you to connect the Sony/Philips Digital Interface (S/PDIF) Out module. +5V The S/PDIF module is purchased separately. SPDIFOUT GND PIN 1 SPEAKER 17. Speaker header +5V GND GND Speaker Out The Speaker header allows you to connect the chassis-mounted system warning speaker. The speaker allows you to hear system beeps and warnings. PIN 1 18.
1.2.2 Rear panel connectors 1 7 2 8 9 3 4 5 10 11 12 6 1. PS/2 Keyboard/Mouse combo port. This port is for a PS/2 keyboard or mouse. 2. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. 3. USB 2.0 port with BIOS FlashBack™ function. Insert a USB storage device with the latest BIOS version to this Universal Serial Bus (USB) port to run BIOS FlashBack™. 4. 2.5Gb Ethernet port. This port allows 2.
8. BIOS FlashBack™ button. Press the BIOS FlashBack™ button for three seconds until the FlashBack™ LED blinks three times, indicating that the BIOS FlashBack™ function is enabled. To use BIOS FlashBack™: 1) Visit https://www.asus.com/support/ and download the latest BIOS version for this motherboard. 2) Manually rename the file as A5458.CAP, or launch the BIOSRenamer.exe application to automatically rename the file, then copy it to your USB storage device. The BIOSRenamer.
1.3 Central Processing Unit (CPU) The motherboard comes with an AMD Socket AM5 designed for AMD Ryzen™ 7000 Series Desktop Processors. Unplug all power cables before installing the CPU. • The AM5 socket has a different pinout design. Ensure that you use a CPU designed for the AM5 socket. The CPU fits in only one correct orientation. DO NOT force the CPU into the socket to prevent bending the connectors on the socket and damaging the CPU.
1.4 System memory This motherboard comes with two Double Data Rate 5 (DDR5) Dual Inline Memory Module (DIMM) sockets. The figure illustrates the location of the DDR5 DIMM sockets: DIMM_A DIMM_B Channel Sockets Channel A DIMM_A Channel B DIMM_B A DDR5 memory module is notched differently from a DDR, DDR2, DDR3 or DDR4 module. DO NOT install a DDR, DDR2, DDR3 or DDR4 memory module to the DDR5 slot. • You may install varying memory sizes in Channel A and Channel B.
Installing a DIMM To remove a DIMM PRIME B650M-K 1-11
1.5 M.2 installation 1 3 2 1 OPTIONAL 3 5 8 6 5 4 7 8 4 1-12 • Ensure to install the bundled M.2 rubber pad before installing your single sided M.2 storage device. • DO NOT install the bundled M.2 rubber pads when installing a double-sided M.2 storage device. The rubber pad installed by default is compatible with double sided M.2 storage devices. • The diagrams in this section is for reference only. • The M.2 storage devices are purchased separately.
BIOS and RAID Support 2.1 2 Knowing BIOS The new ASUS UEFI BIOS is a Unified Extensible Interface that complies with UEFI architecture, offering a user-friendly interface that goes beyond the traditional keyboardonly BIOS controls to enable a more flexible and convenient mouse input. You can easily navigate the new UEFI BIOS with the same smoothness as your operating system. The term “BIOS” in this user guide refers to “UEFI BIOS” unless otherwise specified.
2.2 BIOS Setup program Use the BIOS Setup to update the BIOS or configure its parameters. The BIOS screens include navigation keys and brief onscreen help to guide you in using the BIOS Setup program. Entering BIOS at startup To enter BIOS Setup at startup, press or during the Power-On Self Test (POST). If you do not press or , POST continues with its routines. Entering BIOS Setup after POST To enter BIOS Setup after POST: • Press ++ simultaneously.
2.3 ASUS EZ Flash 3 The ASUS EZ Flash 3 feature allows you to update the BIOS without using an OS‑based utility. Ensure to load the BIOS default settings to ensure system compatibility and stability. Select the Load Optimized Defaults item under the Exit menu or press hotkey . To update the BIOS: • This function can support devices such as a USB flash disk with FAT 32/16 format and single partition only.
2.4 ASUS CrashFree BIOS 3 The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS file using a USB flash drive that contains the BIOS file. Recovering the BIOS 1. Download the latest BIOS version for this motherboard from https://www.asus.com/support/. 2. Rename the BIOS file as ASUS.CAP or A5458.CAP and copy the renamed BIOS file to a USB flash drive. 3.
2.5 RAID configurations The motherboard comes with the AMD RAIDXpert2 Technology that supports Volume, RAIDABLE, RAID 0, RAID 1, and RAID 10 (depends on system licensing) configurations. For more information on configuring your RAID sets, please refer to the RAID Configuration Guide which you can find at https://www.asus.com/support, or by scanning the code.
2-6 Chapter 2: BIOS and RAID Support
Appendix Notices FCC Compliance Information Responsible Party: Address: Phone / Fax No: Asus Computer International 48720 Kato Rd., Fremont, CA 94538, USA (510)739-3777 / (510)608-4555 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
France sorting and recycling information FR Cet appareil et ses accessoires se recyclent À DÉPOSER EN MAGASIN À DÉPOSER EN DÉCHÈTERIE OU Points de collecte sur www.quefairedemesdechets.fr Privilégiez la répara�on ou le don de votre appareil ! Compliance Statement of Innovation, Science and Economic Development Canada (ISED) This device complies with Innovation, Science and Economic Development Canada licence exempt RSS standard(s).
Declaration of compliance for product environmental regulation ASUS follows the green design concept to design and manufacture our products, and makes sure that each stage of the product life cycle of ASUS product is in line with global environmental regulations. In addition, ASUS disclose the relevant information based on regulation requirements. Please refer to http://csr.asus.com/Compliance.
Simplified UKCA Declaration of Conformity English ASUSTeK Computer Inc. hereby declares that this device is in compliance with the essential requirements and other relevant provisions of related UKCA Directives. Full text of UKCA declaration of conformity is available at: www.asus.com/support. Simplified EU Declaration of Conformity English ASUSTeK Computer Inc. hereby declares that this device is in compliance with the essential requirements and other relevant provisions of related Directives.
Warranty EN: ASUS Guarantee Information • ASUS offers a voluntary manufacturer’s Commercial Guarantee. • ASUS reserves the right to interpret the provisions of the ASUS Commercial Guarantee. • This ASUS Commercial Guarantee is provided independently and in addition to the statutory Legal Guarantee and in no way affects or limits the rights under the Legal Guarantee. CR: Informacije o ASUS jamstvu • ASUS dragovoljno nudi komercijalno proizvođačko jamstvo.
PG: Informações de Garantia ASUS • A ASUS oferece uma Garantia Comercial voluntária do fabricante. • A ASUS reserva o direito de interpretar as disposições da Garantia Comercial da ASUS. • Esta Garantia Comercial da ASUS é fornecida de forma independente além da Garantia Legal estatutária e não afeta nem limita de qualquer forma os direitos estabelecidos na Garantia Legal. Para consultar todas as informações sobre a garantia, visite https://www.asus.com/pt/support/.
ASUS contact information ASUSTeK COMPUTER INC. Address: 1F., No. 15, Lide Rd., Beitou Dist., Taipei City 112 ASUS COMPUTER INTERNATIONAL (America) Address: 48720 Kato Rd., Fremont, CA 94538, USA ASUS COMPUTER GmbH (Germany and Austria) Address: Harkortstrasse 21-23, 40880 Ratingen, Germany ASUSTeK (UK) LIMITED Address: 1st Floor, Sackville House, 143-149 Fenchurch Street, London, EC3M 6BL, England, United Kingdom Service and Support Visit our multi-language website at https://www.asus.com/support.
