What's the RAM limit on this motherboard?

The RAM limit on this motherboard is 192GB.

Hi, this board works with Ryzen 9 9900X3D?

The Asus website says the Ryzen 9 9900X3D has been validated with every bios available for this board.

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Main image of ASUS TUF GAMING B850M-PLUS WIFI AMD AM5 B850 mATX motherboard, 14+2+1 80A DrMOS stages, DDR5, PCIe 5.0, 3x M.2, Wi-Fi 6E, 2.5Gb LAN, DP, HDMI, USB 10Gbps & 20Gbps Type-C, BIOS FlashBack, Aura Sync

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ASUS TUF GAMING B850M-PLUS WIFI AMD AM5 B850 mATX motherboard, 14+2+1 80A DrMOS stages, DDR5, PCIe 5.0, 3x M.2, Wi-Fi 6E, 2.5Gb LAN, DP, HDMI, USB 10Gbps & 20Gbps Type-C, BIOS FlashBack, Aura Sync

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Option: TUF GAMING B850M-PLUS WIFI

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Ready for Advanced AI PC: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
AMD AM5 Socket: Ready for AMD Socket AM5 for AMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors
Enhanced Power Solution: 14+2+1 80A DrMOS power stages, 8-layer PCB, 8+8 pin ProCool power connectors, alloy chokes and durable capacitors for stable power delivery
Latest M.2 Support: One onboard PCIe 5.0 M.2 slot and two PCIe 4.0 M.2 slots, with massive M.2 heatsink
Ultrafast Connectivity: Wi-Fi 6E, PCIe 5.0 x16 slot, Realtek 2.5Gb Ethernet, rear USB 20Gbps Type-C port, front USB 10Gbps Type-C connector
Comprehensive Cooling: Enlarged VRM and M.2 heatsinks, PCH heatsink, hybrid fan headers and Fan Xpert 4
DIY Friendly Design: PCIe Slot Q-Release, new M.2 Q-Latch, Q-Antenna, Q-Dashboard, Q-LED, BIOS FlashBack and Pre-mounted I/O shield

Overview

Specs

Reviews (19)

Model
Brand	ASUS
Model	TUF GAMING B850M-PLUS WIFI
Part Number	90MB1IY0-M0AAY0

Supported CPU
CPU Socket Type	AM5
CPU Type	Ryzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series

Chipsets
Chipset	AMD B850

Memory
Number of Memory Slots	4x288pin (DDR5)
Memory Standard	Up to 8000+MT/s (OC)
Maximum Memory Supported	192GB
Channel Supported	Dual Channel
ECC Supported	Yes
Buffer Supported	Un-buffered
Memory Feature	Dual channel memory architecture Supports AMD Extended Profiles for Overclocking (EXPO) ASUS Enhanced Memory Profile (AEMP)

Expansion Slots
PCI Express 5.0 x16	AMD Ryzen 9000 & 7000 Series Desktop Processors 1 x PCIe 5.0 x16 slot (supports x16 mode)
PCI Express 4.0 x16	AMD Ryzen 8000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x8/x4 mode)
PCI Express x1	AMD B850 Chipset 1 x PCIe 4.0 x1 slot

Storage Devices
Serial ATA (SATA)	4 x SATA 6Gb/s
M.2	AMD Ryzen 9000 & 7000 Series Desktop Processors M.2_1 slot (Key M), type 2280 (supports PCIe 5.0 x4 mode) M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) AMD Ryzen 8000 Series Desktop Processors M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode) M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4/x2 mode)** AMD B850 Chipset M.2_3 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
SATA RAID	AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/5/10 and SATA RAID 0/1/5/10. *RAID 5 Function is only supported by AMD Ryzen 9000 series CPU.

Onboard Audio
Audio Chipset	Realtek ALC1220P
Audio Channels	Realtek ALC1220P 7.1 Surround Sound High Definition Audio CODEC - Impedance sense for front and rear headphone outputs - Internal audio Amplifier to enhance the highest quality sound for headphone and speakers - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - High quality 120 dB SNR stereo playback output and 113 dB SNR recording input (Line-in) - Supports up to 32-Bit/192 kHz playback* Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers - Audio cover - Unique de-pop circuit * Due to limitations in HDA bandwidth, 32-Bit/192 kHz is not supported for 7.1 Surround Sound audio.

Onboard LAN
Max LAN Speed	2.5Gbps
Wireless LAN	Wi-Fi 802.11 ax
Bluetooth	Bluetooth 5.3

Rear Panel Ports
Back I/O Ports	1 x USB 20Gbps port (1 x USB Type-C) 3 x USB 10Gbps ports (3 x Type-A) 4 x USB 5Gbps ports (4 x Type-A) 4 x USB 2.0 ports (4 x Type-A) 1 x DisplayPort 1 x HDMI port 1 x Wi-Fi module 1 x Realtek 2.5Gb Ethernet port 5 x Audio jacks 1 x BIOS FlashBack button

Internal I/O Connectors
Onboard USB	1 x USB 10Gbps connector (supports USB Type-C) 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 2 x USB 2.0 headers support 3 additional USB 2.0 ports
Other Connectors	Fan and Cooling Related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 1 x 4-pin AIO Pump header 3 x 4-pin Chassis Fan headers Miscellaneous 3 x Addressable Gen 2 headers 1 x Clear CMOS header 1 x Chassis Intrusion header 1 x COM Port header 1 x Front Panel Audio header (F_AUDIO) 1 x 10-1 pin Front System Panel header

Physical Spec
Form Factor	Micro ATX
Dimensions (W x L)	9.6" x 9.6"
Power Pin	1 x 24-pin Main Power connector 2 x 8-pin +12V CPU Power connectors

Software Feature
BIOS Feature	256 Mb Flash ROM, UEFI AMI BIOS
Software	ASUS Exclusive Software Armoury Crate - Aura Creator - Aura Sync - Fan Xpert 4 - Power Saving ASUS DriverHub ASUS GlideX TurboV Core TUF GAMING CPU-Z DTS Audio Processing Norton 360 for Gamers (60 Days Free Trial) WinRAR (40 Days Free Trial) UEFI BIOS ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode - ASUS MyHotkey
Windows 11	Supported

Features
Features	ASUS TUF PROTECTION - DIGI+ VRM (- Digital power design with DrMOS) - ESD Guards - TUF LANGuard - Overvoltage protection - SafeSlot - Stainless-steel back I/O ASUS Q-Design - M.2 Q-Latch - PCIe Slot Q-Release - Q-Antenna - Q-Dashboard - Q-DIMM - Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green]) ASUS Thermal Solution - M.2 heatsink - VRM heatsink design ASUS EZ DIY - BIOS FlashBack button - BIOS FlashBack LED - ProCool - Pre-mounted I/O shield - SafeDIMM Aura Sync - Addressable Gen 2 headers

Packaging
Package Contents	Cables 2 x SATA 6Gb/s cables Miscellaneous 1 x ASUS WiFi Q-Antenna 1 x TUF GAMING sticker 2 x M.2 rubber packages 1 x Screw package for M.2 SSD Documentation 1 x Quick start guide

Additional Information
Date First Available	January 06, 2025

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ASUS TUF GAMING B850M-PLUS WIFI AMD AM5 B850 mATX motherboard, 14+2+1 80A DrMOS stages, DDR5, PCIe 5.0, 3x M.2, Wi-Fi 6E, 2.5Gb LAN, DP, HDMI, USB 10Gbps & 20Gbps Type-C, BIOS FlashBack, Aura Sync

Learn more about the ASUS TUF GAMING B850M-PLUS WIFI

Customer Reviews of the ASUS TUF GAMING B850M-PLUS WIFI

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Warranty, Returns, And Additional Information

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Item#: N82E16813119706

ASUS TUF GAMING B850M-PLUS WIFI AMD AM5 B850 mATX motherboard, 14+2+1 80A DrMOS stages, DDR5, PCIe 5.0, 3x M.2, Wi-Fi 6E, 2.5Gb LAN, DP, HDMI, USB 10Gbps & 20Gbps Type-C, BIOS FlashBack, Aura Sync

Learn more about the ASUS TUF GAMING B850M-PLUS WIFI

Customer Reviews of the ASUS TUF GAMING B850M-PLUS WIFI

Warranty & Returns

Warranty, Returns, And Additional Information

Return Policies*

Manufacturer Contact Info