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Rectangular ATX motherboard in dark grey and teal with large heatsinks and four DDR5 slots

ASRock

ASRock B850 Riptide WiFi AMD motherboard AM5 DDR5 256 GB

SKU CH-7T5E-C0A53 MPN B850 Riptide WiFi

ATX board for AM5 Ryzen CPUs, four DDR5 slots up to 256 GB, PCIe 5.0 x16, four M.2 sockets and Killer E3100G LAN

  • CPU Socket TypeAM5
  • CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD B850
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardUp to 8000+(OC)
  • Maximum Memory Supported256GB
  • 14+2+1 phase 80A Dr.MOS delivers stable power to Ryzen 9000/8000/7000 CPUs
  • 4 DDR5 slots support up to 256GB at 8000+ OC with EXPO/XMP 3.0
  • PCIe 5.0 x16 slot runs Gen5 with 9000/7000 series and Gen4 with 8000 series
  • 1 Blazing M.2 Gen5x4 128Gb/s plus 3 Hyper M.2 Gen4x4 64Gb/s and 4 SATA 6Gb/s
  • Realtek ALC4082 7.1 audio with Nahimic plus Killer E3100G LAN and USB 3.2 Gen2x2 Type-C

AM5 platform board for Ryzen 7000.

The ASRock B850 Riptide WiFi is an ATX motherboard built around the AMD B850 chipset and AM5 socket. It accepts Ryzen 7000, 8000 and 9000 series processors. Four 288-pin DDR5 slots support dual-channel memory up to 256 GB with AMD EXPO and Intel XMP 3.0 profiles. ECC un-buffered modules are supported.

14+2+1 phase 80A Dr.MOS power and Gen5 M.2

A 14+2+1 phase design uses 80A Dr.MOS for VCore and SOC delivery. One Blazing M.2 socket runs at PCIe 5.0 x4 (128 Gb/s) for 2280 drives. Three Hyper M.2 sockets run at PCIe 4.0 x4 (64 Gb/s) for 2260 or 2280 drives. Four SATA 6Gb/s ports add further storage.

PCIe 5.0 x16 slot scales with CPU generation

The primary PCIe 5.0 x16 slot operates at Gen5 x16 with Ryzen 9000 and 7000 series CPUs, Gen4 x8 with 8000 Phoenix 1 series and Gen4 x4 with 8000 Phoenix 2 series. A second PCIe 4.0 x16 slot runs at x4 mode. This behaviour decides whether a graphics card or add-in card receives full bandwidth.

Highlights

  • 14+2+1 phase 80A Dr.MOS delivers stable power to Ryzen 9000/8000/7000 CPUs
  • 4 DDR5 slots support up to 256GB at 8000+ OC with EXPO/XMP 3.0
  • PCIe 5.0 x16 slot runs Gen5 with 9000/7000 series and Gen4 with 8000 series
  • 1 Blazing M.2 Gen5x4 128Gb/s plus 3 Hyper M.2 Gen4x4 64Gb/s and 4 SATA 6Gb/s
  • Realtek ALC4082 7.1 audio with Nahimic plus Killer E3100G LAN and USB 3.2 Gen2x2 Type-C

Specifications

BrandASRock
ModelB850 RIPTIDE WIFI
CPU Socket TypeAM5
CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
ChipsetAMD B850
Number of Memory Slots4x288pin (DDR5)
Memory StandardUp to 8000+(OC)
Maximum Memory Supported256GB
Channel SupportedDual Channel
Memory Performance ProfileAMD EXPO / Intel XMP 3.0
ECC SupportedYes
Buffer SupportedUn-buffered
PCI Express 5.0 x161 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode*
* PCIE1 will run at Gen5x16 with 9000 and 7000 series processors, Gen4x8 with 8000 (Phoenix 1) series processors and Gen4x4 with 8000 (Phoenix 2) series processors.
* If M2_4 is occupied, PCIE2 will be disabled.
* Supports NVMe SSD as boot disks
- 15µ Gold Contact in VGA PCIe Slot (PCIE1)
PCI Express 4.0 x161 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode
Serial ATA (SATA)4 x SATA 6Gb/s
M.2CPU:
- 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode*
- 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode*
Chipset:
- 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2230/2260/2280 PCIe Gen4x4 (64 Gb/s) mode*
- 1 x Hyper M.2 Socket (M2_4, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode*
* Supports NVMe SSD as boot disks
* M2_1 is the first priority for M.2 installation.
* M2_2 will run at Gen4x2 with 8000 (Phoenix 2) series processors.
* If M2_4 is occupied, PCIE2 will be disabled.
SATA RAID0/1/10
Audio ChipsetRealtek ALC4082
Audio Channels7.1 Channels
LAN ChipsetKiller E3100G
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports2 x Antenna Ports
1 x HDMI Port
1 x Optical SPDIF Out Port
2 x USB 3.2 Gen 2 Type-C Ports (10 Gb/s)
3 x USB 3.2 Gen 1 Type-A Ports*
2 x USB 3.2 Gen 2 Type-A Ports (10 Gb/s)**
4 x USB 2.0 Ports
1 x RJ-45 LAN Port
1 x BIOS Flashback Button
1 x Line Out Jack (Gold Audio Jack)
1 x Microphone Input Jack (Gold Audio Jack)
* USB32_12 are Lightning Gaming Ports.
** USB32_34 supports Ultra USB Power
Onboard USB2 x USB 2.0 Headers (Support 4 USB 2.0 ports)
2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)
1 x Front Panel Type C USB 3.2 Gen2x2 Header (20 Gb/s)
Other Connectors1 x SPI TPM Header
1 x Thermistor Cable Header
1 x Power LED and Speaker Header
1 x RGB LED Header*
3 x Addressable LED Headers**
2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control)***
3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)***
1 x AIO Pump Fan Connector (4-pin) (Smart Fan Speed Control)***
1 x Front Panel Audio Connector
* Supports in total up to 12V/3A, 36W LED Strip
** Support in total up to 5V/3A, 15W LED Strip
*** CPU_FAN1 supports the fan power up to 1A (12W).
*** CPU_FAN2, CHA_FAN1~3 and AIO_PUMP support the fan power up to 3A (36W).
*** CPU_FAN2, CHA
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
2 x 8 pin 12V Power Connectors (Hi-Density Power Connector)
BIOS Feature256Mb AMI UEFI Legal BIOS with GUI support
SoftwareSoftware
- ASRock Motherboard Utility (Phantom Gaming Tuning)
- Killer Control Center
- ASRock Polychrome SYNC
* These utilities can be downloaded from ASRock Live Update & APP Shop.
UEFI
- ASRock EZ Mode
- ASRock Full HD UEFI
- ASRock Auto Driver Installer
- ASRock Instant Flash
Windows 11Windows OS 10 64-bit / 11 64-bit
FeaturesSuperb Productivity
- PCIe Gen5 (Graphics, M.2)
- Dual Channel DDR5
Rock-Solid Durability
- 14+2+1 Power Phase, 80A Dr.MOS for VCore+SOC+MISC with Enlarged
Heatsink Armor
- Flexible Integrated I/O Shield
- 20K Long-lasting Black Caps (high quality and conductive polymer capacitors)
Ultrafast Gaming
- Killer 2.5G LAN, 802.11be Wi-Fi 7 Module
- ASRock Lightning Gaming Ports
EZ Update
- BIOS Flashback Button
- ASRock Auto Driver Installer
EZ Troubleshooter
- ASRock Post Status Checker
Shipping weight1.81 kg
Package size356 × 279 × 76 mm

Questions about this item

Does the 14+2+1 phase power design with 80A Dr.MOS components require any specific cooling or maintenance over time?

The 14+2+1 phase design uses 80A Dr.MOS for VCore and SOC; no user-serviceable parts are on the VRM heatsinks, so maintenance is limited to keeping case airflow clear of dust.

What limits PCIe 5.0 x16 bandwidth on the primary slot when a Ryzen 8000 series CPU is installed?

With Ryzen 8000 Phoenix 1 the slot runs at Gen4x8, and with Phoenix 2 at Gen4x4, so the CPU generation itself is the first bottleneck under sustained load.

How loud does the board get when all four M.2 slots and the 80A VRM are saturated for hours?

The board has no active cooling; noise depends entirely on case fans and CPU cooler, while the VRM and M.2 heatsinks dissipate heat passively.

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