ASROCK B550 PG Riptide DDR4 AMD Motherboard
MPN ASROCK-B550-PGRIPTIDE · Brand ASROCK · ATX
The ASRock B550 PG Riptide is an AMD AM4 ATX motherboard featuring a 10-phase Dr.MOS power design, Killer E3100G 2.5G LAN, PCIe Gen4 M.2, and USB 3.2 Gen2 Type-C for Ryzen 3000 through 5000 series CPUs
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Overview
The ASRock B550 PG Riptide is a full-size ATX motherboard designed for AMD AM4-socket processors, supporting Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000, and 5000 G-Series desktop CPUs (not compatible with AMD Athlon processors). At its core is a 10-phase Digi Power design using 50A Dr.MOS integrated power stages, which deliver higher current per phase compared to discrete MOSFET designs, helping maintain stable Vcore under sustained load. Complementing this is ASRock's Premium 60A Power Choke, which the company states improves saturation current performance relative to traditional chokes. Networking is handled by the Killer E3100G 2.5 Gigabit Ethernet controller (10/100/1000/2500 Mb/s), supported by the Intel Killer Prioritization Engine software that detects and prioritises gaming traffic. For users who prefer wireless connectivity, an M.2 Key-E slot (type 2230) accepts an optional 802.11ac Wi-Fi/BT PCIe module. Storage is a clear strength: a Hyper M.2 slot (M2_1) supports PCIe Gen4 x4 NVMe drives at up to 64 Gb/s when paired with Vermeer or Matisse CPUs (Gen3 x4 with APUs), while a second Ultra M.2 slot (M2_2) supports both SATA3 and PCIe Gen3 x4. Six SATA3 6.0 Gb/s connectors provide additional drive connectivity. Note that SATA3 ports 5 and 6 are disabled if M2_2 is occupied by a PCIe-type device. USB connectivity spans three generations: the rear I/O includes one USB 3.2 Gen2 Type-A and one Type-C port (each at 10 Gb/s), six USB 3.2 Gen1 ports, and two USB 2.0 ports. A front-panel USB 3.2 Gen2 Type-C header is also present. Audio is powered by the Realtek ALC897 codec delivering 7.1-channel HD audio, with Nahimic Audio software and gold-plated audio jacks. ASRock's Polychrome RGB Sync supports the two onboard RGB LED headers and two addressable LED headers. A Thunderbolt 4 AIC connector (5-pin) allows Thunderbolt 4 functionality via an optional ASRock Thunderbolt 4 AIC card. The Post Status Checker (PSC) provides onboard LED indicators for CPU, DRAM, VGA, and boot status to simplify troubleshooting. Key Verified Specifications: • Socket: AMD AM4 • Chipset: AMD B550 • Form Factor: ATX — 12.0 in × 9.6 in (30.5 cm × 24.4 cm) • Memory: 4× DDR4 DIMM, dual-channel, max 128 GB, up to DDR4-4933+ (OC); supports XMP • PCIe Slots: 1× PCIe 4.0 x16 (PCIE1), 2× PCIe 3.0 x16-form (x4/x1 mode), 1× PCIe 3.0 x1 • M.2: 1× Hyper M.2 PCIe Gen4 x4 (M2_1); 1× Ultra M.2 PCIe Gen3 x4 / SATA3 (M2_2); 1× Key-E for Wi-Fi • Storage: 6× SATA3 6.0 Gb/s; RAID 0/1/10 (SATA), RAID 0/1 (NVMe) • LAN: Killer E3100G 2.5 GbE • Audio: Realtek ALC897, 7.1 CH HD; Nahimic Audio • Graphics Output: 1× HDMI 2.1 (max 4K@60Hz) • USB (rear): 1× Gen2 Type-A, 1× Gen2 Type-C, 6× Gen1, 2× USB 2.0 • Power: 10-phase, 50A Dr.MOS; 24-pin ATX + 8-pin + 4-pin 12V • OS Support: Windows 10 64-bit / Windows 11 64-bit • Certifications: FCC, CE; ErP/EuP ready; CEC Tier II ready
Datasheet
| Form Factor | ATX |
|---|---|
| Chipset | AMD B550 |
| CPU Type | – Supports AMD AM4 Socket RyzenTM 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors* |
| Os | – Microsoft® Windows® 10 64-bit / 11 64-bit |
| Lan | – 2.5 Gigabit LAN 10/100/1000/2500 Mb/s |
| Bios | – 256Mb AMI UEFI Legal BIOS with GUI support |
| Raid | – Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices |
| Audio | – 7.1 CH HD Audio (Realtek ALC897 Audio Codec) |
| Slots | AMD Ryzen series CPUs (Vermeer and Matisse) |
| Memory | – Dual Channel DDR4 Memory Technology |
| Storage | – 6 x SATA3 6.0 Gb/s Connectors |
| Graphics | – Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU* |
| Connector | – 1 x SPI TPM Header |
| Support Cd | – Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar |
| Accessories | – Quick Installation Guide, Support CD, I/O Shield |
| Certifications | – FCC, CE |
| Rear Panel I/O | – 1 x Antenna Bracket |
| Unique Feature | ASRock USB 3.2 Gen2 |
| Hardware Monitor | – Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump Fans |
| Software And Uefi | Software |




