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Contents Safety information...iv About this guide...v Package contents...vi PRIME B650M-A WIFI II specifications summary vi Chapter 1: Product Introduction 1.1 Before you proceed 1-1 1.2 Motherboard overview 1-2 1.3 Central Processing Unit (CPU 1-10 1.4 System memory 1-11 Chapter 2: BIOS and RAID Support 2.1 Knowing BIOS 2-1 2.2 BIOS Setup program 2-2 2.3 ASUS EZ Flash 3 2-3 2.4 ASUS CrashFree BIOS 3 2-4 2.5 RAID configurations 2-5 Appendix Notices...A-1 Warranty...A-8 ASUS contact information A-10 Service and Support A-10 iii
Contents Safety information...iv About this guide...v Package contents...vi PRIME B650M-A WIFI II specifications summary vi Chapter 1: Product Introduction 1.1 Before you proceed 1-1 1.2 Motherboard overview 1-2 1.3 Central Processing Unit (CPU 1-10 1.4 System memory 1-11 Chapter 2: BIOS and RAID Support 2.1 Knowing BIOS 2-1 2.2 BIOS Setup program 2-2 2.3 ASUS EZ Flash 3 2-3 2.4 ASUS CrashFree BIOS 3 2-4 2.5 RAID configurations 2-5 Appendix Notices...A-1 Warranty...A-8 ASUS contact information A-10 Service and Support A-10 iii
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... 2 x M.2 slots and 4 x SATA 6Gb/s ports* AMD Ryzen™ 7000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) AMD B650 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) 4 x SATA 6Gb/s ports * AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10. (continued on the support site (https://www.asus.com/support/FAQ/1037507/). PRIME B650M-A WIFI II specifications summary CPU Chipset Memory Graphics Expansion Slots Storage AMD Socket AM5 for CPU support list. AMD B650 Chipset 4 x DIMM, Max. 128GB...
... 2 x M.2 slots and 4 x SATA 6Gb/s ports* AMD Ryzen™ 7000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) AMD B650 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) 4 x SATA 6Gb/s ports * AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10. (continued on the support site (https://www.asus.com/support/FAQ/1037507/). PRIME B650M-A WIFI II specifications summary CPU Chipset Memory Graphics Expansion Slots Storage AMD Socket AM5 for CPU support list. AMD B650 Chipset 4 x DIMM, Max. 128GB...
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... in the front panel is required to support 7.1 Surround Sound audio output. 2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 x Type-A) 4 x USB 2.0 ports (4 x Type-A) 1 x DisplayPort 1 x VGA port 1 x HDMI® port 1 x Wi-Fi Module 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks 1 x BIOS FlashBack™ button 1 x PS/2 Keyboard/Mouse combo port Fan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 3 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector 1 x 4-pin +12V Power connector (continued on the...
... in the front panel is required to support 7.1 Surround Sound audio output. 2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 x Type-A) 4 x USB 2.0 ports (4 x Type-A) 1 x DisplayPort 1 x VGA port 1 x HDMI® port 1 x Wi-Fi Module 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks 1 x BIOS FlashBack™ button 1 x PS/2 Keyboard/Mouse combo port Fan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 3 x 4-pin Chassis Fan headers Power related 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector 1 x 4-pin +12V Power connector (continued on the...
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... I /O Connectors Storage related 2 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 3.2 Gen 1 connector (supports USB Type-C®) 1 x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 3 x Addressable Gen 2 headers 1 x Aura RGB header 1 x Clear CMOS header 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 (14-1 pin) 1 x 10-1 pin System Panel header ASUS 5X PROTECTION III - Q-DIMM - PRIME B650M-A WIFI II specifications summary Internal...
... I /O Connectors Storage related 2 x M.2 slots (Key M) 4 x SATA 6Gb/s ports USB 1 x USB 3.2 Gen 1 connector (supports USB Type-C®) 1 x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports Miscellaneous 3 x Addressable Gen 2 headers 1 x Aura RGB header 1 x Clear CMOS header 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 (14-1 pin) 1 x 10-1 pin System Panel header ASUS 5X PROTECTION III - Q-DIMM - PRIME B650M-A WIFI II specifications summary Internal...
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... the QR code below: ix Please scan the QR Code for installation guide and FAQ. • For more information on downloading and installing drivers and utilities for the latest specifications. • MyASUS offers a variety of support features such as helping to change without notice. PRIME B650M-A WIFI II specifications summary Software Features BIOS Manageability Operating System Form Factor ASUS CPU-Z MyASUS Norton Anti-virus software (Free Trial version) WinRAR UEFI BIOS ASUS EZ DIY - ASUS EZ Flash 3 - ASUS CrashFree BIOS 3 -
... the QR code below: ix Please scan the QR Code for installation guide and FAQ. • For more information on downloading and installing drivers and utilities for the latest specifications. • MyASUS offers a variety of support features such as helping to change without notice. PRIME B650M-A WIFI II specifications summary Software Features BIOS Manageability Operating System Form Factor ASUS CPU-Z MyASUS Norton Anti-virus software (Free Trial version) WinRAR UEFI BIOS ASUS EZ DIY - ASUS EZ Flash 3 - ASUS CrashFree BIOS 3 -
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... to avoid touching the ICs on them. • Whenever you install or remove any component, place it on a grounded antistatic pad or in this chapter are for reference only. Chapter 1: Product Introduction Product Introduction 1 1.1 Before you proceed Take note of the header/jumper/connector. • For more information on installing your motherboard, please scan the QR code below: ASUS PRIME B650M-A WIFI II 1-1
... to avoid touching the ICs on them. • Whenever you install or remove any component, place it on a grounded antistatic pad or in this chapter are for reference only. Chapter 1: Product Introduction Product Introduction 1 1.1 Before you proceed Take note of the header/jumper/connector. • For more information on installing your motherboard, please scan the QR code below: ASUS PRIME B650M-A WIFI II 1-1
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... 18 USB_5_1_2_13 LAN_U32G2_1011 M.2(WIFI) AUDIO 4 3 Audio Codec AAFP CHA_FAN1 ATX_PWR SOCKET AM5 5 24.4cm(9.6in) M.2_1(SOCKET3) 256Mb BIOS Ethernet 2280 2260 TPM 2242 PCIE SATA 5.0 X4 X U32_C6 U32G1_89 9 8 1st PCIEX16_1 Super I/O BATTERY AMD B650 PCIEX16_2 PCIEX16_3 CHA_FAN2 COM_DEBUG CLRTC CHA_FAN3 ADD_GEN 2_3 RGB_HEADER SPDIF_OUT USB_1415 USB_1617 2280 COM PCIE SATA 4.0 X4 X M.2_2(SOCKET3) 2260 2242 SATA6G_4 F_PANEL SPEAKER SATA6G_3 SATA6G_2 SATA6G_1...
... 18 USB_5_1_2_13 LAN_U32G2_1011 M.2(WIFI) AUDIO 4 3 Audio Codec AAFP CHA_FAN1 ATX_PWR SOCKET AM5 5 24.4cm(9.6in) M.2_1(SOCKET3) 256Mb BIOS Ethernet 2280 2260 TPM 2242 PCIE SATA 5.0 X4 X U32_C6 U32G1_89 9 8 1st PCIEX16_1 Super I/O BATTERY AMD B650 PCIEX16_2 PCIEX16_3 CHA_FAN2 COM_DEBUG CLRTC CHA_FAN3 ADD_GEN 2_3 RGB_HEADER SPDIF_OUT USB_1415 USB_1617 2280 COM PCIE SATA 4.0 X4 X M.2_2(SOCKET3) 2260 2242 SATA6G_4 F_PANEL SPEAKER SATA6G_3 SATA6G_2 SATA6G_1...
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CPU socket The motherboard comes 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 use a PSU with a higher power output when configuring a system with Dual Inline Memory Modules (DIMM) slots designed for AMD Ryzen™ 7000 Series Desktop Processors. Header CPU_FAN CPU_OPT CHA_FAN1 CHA_FAN2 CHA_FAN3 Max. FAN PWM FAN IN FAN PWR GND 5. Ensure to fit...
CPU socket The motherboard comes 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 use a PSU with a higher power output when configuring a system with Dual Inline Memory Modules (DIMM) slots designed for AMD Ryzen™ 7000 Series Desktop Processors. Header CPU_FAN CPU_OPT CHA_FAN1 CHA_FAN2 CHA_FAN3 Max. FAN PWM FAN IN FAN PWR GND 5. Ensure to fit...
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... USB 2.0 headers provide data transfer speeds of up to connect SATA devices such as M.2 SSD modules. • AMD Ryzen™ 7000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) • AMD B650 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) The M.2 SSD module is purchased separately. ADD_GEN 2 1-4 Chapter 1: Product Introduction SATA 6Gb/s ports The SATA 6Gb/s ports allow you to connect a USB 3.2 Gen 1 module for additional USB 2.0 ports. DO NOT connect a 1394 cable to connect...
... USB 2.0 headers provide data transfer speeds of up to connect SATA devices such as M.2 SSD modules. • AMD Ryzen™ 7000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) • AMD B650 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) The M.2 SSD module is purchased separately. ADD_GEN 2 1-4 Chapter 1: Product Introduction SATA 6Gb/s ports The SATA 6Gb/s ports allow you to connect a USB 3.2 Gen 1 module for additional USB 2.0 ports. DO NOT connect a 1394 cable to connect...
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... about 5-10 seconds. 3. ASUS PRIME B650M-A WIFI II 1-5 Short-circuiting or placing a jumper cap will cause system boot failure! Before you install or remove any component, ensure that the ATX power supply is switched off or the power cord is purchased separately. 13. The Addressable Gen 2 header supports WS2812B addressable RGB LED strips (5V/Data/ Ground), with the 12V header on the motherboard. • The LED strip will only light up when the...
... about 5-10 seconds. 3. ASUS PRIME B650M-A WIFI II 1-5 Short-circuiting or placing a jumper cap will cause system boot failure! Before you install or remove any component, ensure that the ATX power supply is switched off or the power cord is purchased separately. 13. The Addressable Gen 2 header supports WS2812B addressable RGB LED strips (5V/Data/ Ground), with the 12V header on the motherboard. • The LED strip will only light up when the...
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... end of the motherboard's high-definition audio capability. COM PIN 1 The COM port module is for a chassis-mounted front panel audio I /O module cable to connect a COM port module. COM Port header The COM (Serial) Port header allows you to clear the CMOS RTC RAM data. T_SPI_MOSI T_SPI_CLK GND TPM_DETECT_L S_SPI_TPM_CS2# S_SPI_TPM_IRQ# 1-6 Chapter 1: Product Introduction If the steps above do not help, remove the onboard button cell battery and short the two pins again to hear...
... end of the motherboard's high-definition audio capability. COM PIN 1 The COM port module is for a chassis-mounted front panel audio I /O module cable to connect a COM port module. COM Port header The COM (Serial) Port header allows you to clear the CMOS RTC RAM data. T_SPI_MOSI T_SPI_CLK GND TPM_DETECT_L S_SPI_TPM_CS2# S_SPI_TPM_IRQ# 1-6 Chapter 1: Product Introduction If the steps above do not help, remove the onboard button cell battery and short the two pins again to hear...
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... system settings). • Reset button header (RESET) The 2-pin header allows you to reboot the system. 20. PWR_BTN PWR_LED+ PWR_LEDPWR GND • System Power LED header (PWR_LED) The 2-pin header allows you to a power source, or when you to connect the chassis-mounted reset button. The Storage Device Activity LED lights up or blinks to indicate the status of the BIOS FlashBack™. 19. System Panel header This header supports several chassis-mounted functions. +PWR_LED- ASUS PRIME B650M-A WIFI II 1-7 BIOS FlashBackTM LED The BIOS...
... system settings). • Reset button header (RESET) The 2-pin header allows you to reboot the system. 20. PWR_BTN PWR_LED+ PWR_LEDPWR GND • System Power LED header (PWR_LED) The 2-pin header allows you to a power source, or when you to connect the chassis-mounted reset button. The Storage Device Activity LED lights up or blinks to indicate the status of the BIOS FlashBack™. 19. System Panel header This header supports several chassis-mounted functions. +PWR_LED- ASUS PRIME B650M-A WIFI II 1-7 BIOS FlashBackTM LED The BIOS...
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... of this Universal Serial Bus (USB) port to a Local Area Network (LAN) through a network hub. Insert a USB storage device to the table below for a PS/2 keyboard or mouse. 3. BIOS FlashBackTM button. Video Graphics Adapter (VGA) port. USB 2.0 port with BIOS FlashBackTM function. HDMI® port. Line In port (light blue). This port connects a headphone or a speaker. This port connects the tape, CD, DVD player, or other protected content. 8. Refer to this port becomes Front Speaker Out. 7. In 4-channel, 5.1-channel, and 7.1-channel configurations, the function of...
... of this Universal Serial Bus (USB) port to a Local Area Network (LAN) through a network hub. Insert a USB storage device to the table below for a PS/2 keyboard or mouse. 3. BIOS FlashBackTM button. Video Graphics Adapter (VGA) port. USB 2.0 port with BIOS FlashBackTM function. HDMI® port. Line In port (light blue). This port connects a headphone or a speaker. This port connects the tape, CD, DVD player, or other protected content. 8. Refer to this port becomes Front Speaker Out. 7. In 4-channel, 5.1-channel, and 7.1-channel configurations, the function of...
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...ASUS PRIME B650M-A WIFI II 1-9 Wi-Fi 6 ports. Insert the USB storage device to the BIOS FlashBack™ port. 4) Press the BIOS FlashBack™ button for USB 2.0 devices. 12. These 4-pin Universal Serial Bus (USB) ports are for the function of the audio ports in the front panel to support a 7.1-channel audio output. Side Speaker Out - - - - To use BIOS FlashBack™: 1) Visit https://www.asus.com/support/ and download the latest BIOS version for a BIOS FlashBack™ compatible motherboard. 3) Plug the 24-pin power connector to the motherboard and turn on the power supply...
...ASUS PRIME B650M-A WIFI II 1-9 Wi-Fi 6 ports. Insert the USB storage device to the BIOS FlashBack™ port. 4) Press the BIOS FlashBack™ button for USB 2.0 devices. 12. These 4-pin Universal Serial Bus (USB) ports are for the function of the audio ports in the front panel to support a 7.1-channel audio output. Side Speaker Out - - - - To use BIOS FlashBack™: 1) Visit https://www.asus.com/support/ and download the latest BIOS version for a BIOS FlashBack™ compatible motherboard. 3) Plug the 24-pin power connector to the motherboard and turn on the power supply...
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... DIMM_B2 ASUS PRIME B650M-A WIFI II 1-11 1.4 System memory This motherboard comes with the same CAS latency. The system maps the total size of the same version or date code (D/C) from a DDR, DDR2, DDR3 or DDR4 module. Check with the retailer to get the correct memory modules. • Refer to support a full memory load. • Always install DIMMs with four Double Data Rate 5 (DDR5) Dual Inline Memory...
... DIMM_B2 ASUS PRIME B650M-A WIFI II 1-11 1.4 System memory This motherboard comes with the same CAS latency. The system maps the total size of the same version or date code (D/C) from a DDR, DDR2, DDR3 or DDR4 module. Check with the retailer to get the correct memory modules. • Refer to support a full memory load. • Always install DIMMs with four Double Data Rate 5 (DDR5) Dual Inline Memory...
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... instability or boot failure. ASUS PRIME B650M-A WIFI II 2-1 We strongly recommend that goes beyond the traditional keyboardonly BIOS controls to enable a more flexible and convenient mouse input. Chapter 2: BIOS and RAID Support BIOS and RAID Support 2 For more details on BIOS and RAID configurations, please refer to www.asus.com/support. 2.1 Knowing BIOS The new ASUS UEFI BIOS is a Unified Extensible Interface that complies with UEFI architecture, offering a user-friendly interface that you change the default BIOS settings except in...
... instability or boot failure. ASUS PRIME B650M-A WIFI II 2-1 We strongly recommend that goes beyond the traditional keyboardonly BIOS controls to enable a more flexible and convenient mouse input. Chapter 2: BIOS and RAID Support BIOS and RAID Support 2 For more details on BIOS and RAID configurations, please refer to www.asus.com/support. 2.1 Knowing BIOS The new ASUS UEFI BIOS is a Unified Extensible Interface that complies with UEFI architecture, offering a user-friendly interface that you change the default BIOS settings except in...
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... boot after POST: • Press ++ simultaneously. • Press the reset button on . 2.2 BIOS Setup program Use the BIOS Setup to enter BIOS Setup using the BIOS Setup program. Select the Load Optimized Defaults item under two modes: EZ Mode and Advanced Mode. After doing either of the three options, press key to enter BIOS. • Ensure that a USB mouse is connected to your motherboard if you do not press or , POST continues with its parameters. BIOS menu screen The BIOS Setup program can change modes...
... boot after POST: • Press ++ simultaneously. • Press the reset button on . 2.2 BIOS Setup program Use the BIOS Setup to enter BIOS Setup using the BIOS Setup program. Select the Load Optimized Defaults item under two modes: EZ Mode and Advanced Mode. After doing either of the three options, press key to enter BIOS. • Ensure that a USB mouse is connected to your motherboard if you do not press or , POST continues with its parameters. BIOS menu screen The BIOS Setup program can change modes...
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... support devices such as a USB flash disk with FAT 32/16 format and single partition only. • DO NOT shut down or reset the system while updating the BIOS to ensure system compatibility and stability. Press the Up/Down arrow keys to find the BIOS file, and then press to the Drive field. 4. ASUS PRIME B650M-A WIFI II 2-3 Ensure to load the BIOS default settings to prevent system boot failure! 1. Go to the Tool menu...
... support devices such as a USB flash disk with FAT 32/16 format and single partition only. • DO NOT shut down or reset the system while updating the BIOS to ensure system compatibility and stability. Press the Up/Down arrow keys to find the BIOS file, and then press to the Drive field. 4. ASUS PRIME B650M-A WIFI II 2-3 Ensure to load the BIOS default settings to prevent system boot failure! 1. Go to the Tool menu...
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... the updating process. 2.4 ASUS CrashFree BIOS 3 The ASUS CrashFree BIOS 3 utility is an auto recovery tool that you press to load default BIOS values. The system requires you to enter BIOS Setup to a USB port. 5. DO NOT shut down or reset the system while updating the BIOS! Recovering the BIOS 1. You can cause system boot failure! 2-4 Chapter 2: BIOS and RAID Support Turn on the system. 4. Insert the USB flash drive containing the BIOS file to recover the BIOS setting. Rename the BIOS file as ASUS.CAP...
... the updating process. 2.4 ASUS CrashFree BIOS 3 The ASUS CrashFree BIOS 3 utility is an auto recovery tool that you press to load default BIOS values. The system requires you to enter BIOS Setup to a USB port. 5. DO NOT shut down or reset the system while updating the BIOS! Recovering the BIOS 1. You can cause system boot failure! 2-4 Chapter 2: BIOS and RAID Support Turn on the system. 4. Insert the USB flash drive containing the BIOS file to recover the BIOS setting. Rename the BIOS file as ASUS.CAP...
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... configuration is required for this setup. This configuration does not provide performance benefits or data redundancy, disk failure will result in parallel, interleaved stacks. This RAID configuration provides data protection and increases fault tolerance to create RAIDABLE arrays may vary per system. If one drive fails, the disk array management software directs all the benefits of both RAID 0 and RAID 1 configurations. ASUS PRIME B650M-A WIFI II 2-5 For more storage...
... configuration is required for this setup. This configuration does not provide performance benefits or data redundancy, disk failure will result in parallel, interleaved stacks. This RAID configuration provides data protection and increases fault tolerance to create RAIDABLE arrays may vary per system. If one drive fails, the disk array management software directs all the benefits of both RAID 0 and RAID 1 configurations. ASUS PRIME B650M-A WIFI II 2-5 For more storage...