GIGABYTE B550M Aorus Pro-P DDR4 AMD Motherboard
MPN GIGABYTE-B550M-AORUS-PRO-P · Brand Gigabyte · mATX
The Gigabyte B550M Aorus Pro-P is a Micro ATX AM4 motherboard featuring a 10+2 phase 50A DrMOS power design, dual M.2 PCIe 4.0/3.0 slots, 2.5GbE LAN, and support for AMD Ryzen 5000 Series processors with up to 128 GB DDR4 memory
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Overview
The Gigabyte B550M Aorus Pro-P is a Micro ATX motherboard built on the AMD B550 chipset, designed for AMD Socket AM4 processors including AMD Ryzen 5000 Series, 3rd Gen Ryzen, and 3rd Gen Ryzen with Radeon Graphics. Its compact 24.4 cm x 24.4 cm footprint makes it an efficient choice for space-conscious builds without compromising on connectivity or feature depth. Power delivery is handled by a 10+2 phase Digital Twin Power Design rated at 50A DrMOS per phase, supported by an enlarged VRM heatsink to manage thermals under sustained CPU loads. This design targets stable operation for multi-core Ryzen processors that demand consistent current. Memory support spans four DDR4 DIMM slots capable of holding up to 128 GB of system RAM (32 GB per DIMM). The board supports dual-channel architecture with XMP profiles and ECC unbuffered modules, with overclocked speeds reaching up to DDR4-4733(O.C.) depending on the processor generation installed. Storage options are generous: two M.2 Socket 3 connectors support NVMe SSDs with PCIe 4.0 x4 bandwidth on the CPU-connected slot (M2A_CPU) and PCIe 3.0 x4 on the chipset-connected slot (M2B_SB). One M.2 slot features a thermal guard. Four SATA 6 Gb/s ports complement these, with support for RAID 0, RAID 1, and RAID 10 arrays. Networking is provided by a Realtek 2.5GbE LAN chip supporting 2.5 Gbit, 1 Gbit, and 100 Mbit speeds, paired with the Realtek 8125 bandwidth management utility. Audio is handled by a Realtek ALC1200 codec delivering High Definition Audio up to 7.1-channel output with S/PDIF optical out on the rear panel. Rear connectivity includes 4x USB 3.2 Gen 1 Type-A, 1x USB 3.2 Gen 2 Type-A (red), 1x USB 3.2 Gen 2 Type-C, 4x USB 2.0, DisplayPort 1.4 (up to 5120x2880@60 Hz), HDMI 2.1 (up to 4096x2160@60 Hz), and five audio jacks plus optical S/PDIF out. The Q-Flash Plus button enables BIOS updates without a CPU, memory, or GPU installed. RGB Fusion 2.0 is supported via two addressable LED headers and two standard RGB LED headers. Smart Fan 5 provides multi-zone thermal control with hybrid fan headers that include FAN STOP capability. The board carries a 3-year manufacturer warranty. Key Verified Specifications: - Chipset: AMD B550 - Socket: AM4 (Ryzen 5000 Series, 3rd Gen Ryzen, 3rd Gen Ryzen with Radeon Graphics) - Form Factor: Micro ATX, 24.4 cm x 24.4 cm - Memory: 4x DDR4 DIMM, up to 128 GB, dual-channel, XMP, ECC unbuffered supported - VRM: 10+2 phase, 50A DrMOS - M.2 Slots: 2x (PCIe 4.0 x4 + PCIe 3.0 x4); one thermal guard - SATA: 4x SATA 6 Gb/s with RAID 0/1/10 - LAN: Realtek 2.5GbE - Audio: Realtek ALC1200, 7.1-channel HD Audio, S/PDIF Out - Display Output: HDMI 2.1 + DisplayPort 1.4 - USB (rear): 4x USB 3.2 Gen 1, 1x USB 3.2 Gen 2 Type-A, 1x USB 3.2 Gen 2 Type-C, 4x USB 2.0 - BIOS: AMI UEFI, 256 Mbit flash, Q-Flash Plus - Warranty: 3 Years
Datasheet
| Warranty | 3 Years |
|---|---|
| Form Factor | mATX |
| Chipset | AMD B550 |
| CPU Type | AMD Socket AM4, support for: AMD RyzenTM 5000 Series/ 3rd Gen RyzenTM and 3rd Gen RyzenTM with RadeonTM Graphics Processors(Please refer "CPU Support List" for more information.) |
| Lan | Realtek® 2.5GbE LAN chip (2.5 Gbit/1 Gbit/100 Mbit) |
| USB | CPU:4 x USB 3.2 Gen 1 ports on the back panelChipset:1 x USB Type-C™ port on the back panel, with USB 3.2 Gen 2 support1 x USB 3.2 Gen 2 Type-A port (red) on the back panel2 x USB 3.2 Gen 1 ports available through the internal USB header4 x USB 2.0/1.1 ports available through the internal USB headersChipset+1 USB 2.0 Hub:4 x USB 2.0/1.1 ports on the back panel |
| Bios | 1 x 256 Mbit flashUse of licensed AMI UEFI BIOSPnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0 |
| Audio | Realtek® ALC1200 codecHigh Definition Audio2/4/5.1/7.1-channelSupport for S/PDIF Out |
| Memory | 4 x DDR4 DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) of system memoryAMD Ryzen™ 5000 series processors:Support for DDR4 4266(O.C.) / 4000(O.C.) / 3866(O.C.) / 3800(O.C.) / 3733(O.C.) / 3600(O.C.) / 3466(O.C.) / 3400(O.C.) / 3333(O.C.) / 3300(O.C.) / 3200 / 2933 / 2667 / 2400 / 2133 MHz memory modules3rd Gen AMD Ryzen™ Processors:Support for DDR4 4400(O.C.) / 4000(O.C.) / 3600(O.C.) / 3333(O.C.) /3200/2933/2667/2400/2133 MHz memory modules3rd Gen AMD Ryzen™ with Radeon™ Graphics processors:Support for DDR4 4733(O.C.) / 4600(O.C.) / 4400(O.C.) / 4000(O.C.) / 3600(O.C.) / 3333(O.C.) /3200/2933/2667/2400/2133 MHz memory modulesDual channel memory architectureSupport for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modulesSupport for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modulesSupport for Extreme Memory Profile (XMP) memory modules(Please refer "Memory Support List" for more information.) |
| H/W Monitoring | Voltage detectionTemperature detectionFan speed detectionWater cooling flow rate detectionOverheating warningFan fail warningFan speed control* Whether the fan speed control function is supported will depend on the cooler you install |
| I/O Controller | iTE® I/O Controller Chip |
| Expansion Slots | 1 x PCI Express x16 slot (PCIEX16), integrated in the CPU:3rd Generation AMD Ryzen™ processors support PCIe 4.0 x16 mode3rd Generation AMD Ryzen™ with Radeon™ Graphics processors support PCIe 3.0 x16 mode* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.1 x PCI Express x16 slot (PCIEX4), integrated in the Chipset:Supporting PCIe 3.0 x4 mode1 x PCI Express x1 slot (PCIEX1), integrated in the Chipset:Supporting PCIe 3.0 x1 mode |
| Unique Features | Support for APP Center* Available applications in APP Center may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications.@BIOSEasyTuneFast BootGame BoostON/OFF ChargeRGB FusionSmart BackupSystem Information ViewerSupport for Q-Flash PlusSupport for Q-FlashSupport for Xpress Install |
| Bundled Software | Norton® Internet Security (OEM version)Realtek® 8125 Gaming LAN Bandwidth Control Utility |
| Onboard Graphics | Integrated in the 3rd Generation AMD Ryzen™ with Radeon™ Graphics processors:1 x HDMI port, supporting a maximum resolution of 4096×2160@60 Hz* Support for HDMI 2.1 version, HDCP 2.3, and HDR.1 x DisplayPort, supporting a maximum resolution of 5120×2880@60 Hz* Support for DisplayPort 1.4 version, HDCP 2.3, and HDR.Maximum shared memory of 16 GB |
| Operating System | Support for Windows 10 64-bit |
| Storage Interface | 1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2242/2260/2280/22110 SSDs:3rd Generation AMD Ryzen™ processors support SATA and PCIe 4.0 x4/x2 SSDs3rd Generation AMD Ryzen™ with Radeon™ Graphics processors support SATA and PCIe 3.0 x4/x2 SSDs1 x M.2 connector (M2B_SB), integrated in the Chipset, supporting Socket 3, M key, type 2242/2260/2280 SSDs:Supporting SATA and PCIe 3.0 x4/x2 SSDs4 x SATA 6Gb/s connectors, integrated in the Chipset:Support for RAID 0, RAID 1, and RAID 10 |
| Back Panel Connectors | 4 x USB 2.0/1.1 ports1 x DisplayPort1 x HDMI port4 x USB 3.2 Gen 1 ports1 x USB 3.2 Gen 2 Type-A port (red)1 x USB Type-C™ port, with USB 3.2 Gen 2 support1 x Q-Flash Plus button1 x RJ-45 port1 x optical S/PDIF Out connector5 x audio jacks |
| Internal I/O Connectors | 1 x 24-pin ATX main power connector1 x 8-pin ATX 12V power connector1 x CPU fan header1 x water cooling CPU fan header3 x system fan headers2 x addressable LED strip headers2 x RGB LED strip headers1 x CPU cooler LED strip/RGB LED strip header2 x M.2 Socket 3 connectors4 x SATA 6Gb/s connectors1 x front panel header1 x front panel audio header1 x USB 3.2 Gen 1 header2 x USB 2.0/1.1 headers1 x serial port header1 x Trusted Platform Module (TPM) header (2×6 pin, for the GC-TPM2.0_S module only)1 x Thunderbolt™ add-in card connector1 x Clear CMOS jumper |




