GIGABYTE B450 Aorus M DDR4 AMD Motherboard
MPN B450-AORUS-M · Brand Gigabyte · mATX
The Gigabyte B450 Aorus M is a Micro ATX AM4 motherboard featuring AMD B450 chipset, four DDR4 slots (up to 64 GB), M.2 PCIe 3.0 storage, dual BIOS, and Smart Fan 5 cooling control for AMD Ryzen builds
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Overview
The Gigabyte B450 Aorus M is a Micro ATX motherboard built around the AMD B450 chipset and the AM4 socket, making it a solid foundation for AMD Ryzen first- and second-generation processor builds, with backward and forward compatibility noted for Ryzen with Radeon Vega Graphics processors as well. Measuring 24.4 cm x 24.4 cm, its compact footprint suits mid-tower and smaller chassis without sacrificing connectivity or feature depth. Memory flexibility is a standout strength. Four DDR4 DIMM slots support dual-channel configurations of up to 64 GB, with speeds ranging from DDR4 2133 MHz up to 3200 MHz in overclocked mode, alongside XMP profile support for enthusiast memory kits. ECC Un-buffered DIMMs are accepted but operate in non-ECC mode. Storage builders will appreciate the single M.2 Socket 3 connector (supporting type 2242 through 22110 in both SATA and PCIe 3.0 x4/x2 modes) paired with six SATA 6 Gb/s ports, with RAID 0, RAID 1, and RAID 10 configurations supported across the SATA array. Expansion is handled by one PCIe 3.0 x16 slot for the primary graphics card, a second x16 physical slot wired at x4 (PCIe 2.0), and one PCIe 2.0 x1 slot — enough headroom for a GPU plus a capture card or additional NIC. AMD CrossFire multi-GPU technology is supported. Connectivity on the rear panel includes two USB 3.1 Gen 2 Type-A ports, four USB 3.1 Gen 1 Type-A ports, two USB 2.0 ports, HDMI 2.0 (up to 4096×2160 @ 60 Hz), DVI-D (up to 1920×1200 @ 60 Hz), a Realtek Gigabit Ethernet port, six audio jacks, and a legacy PS/2 port. Audio is driven by a Realtek ALC892 codec with High Definition Audio support across 2/4/5.1/7.1-channel configurations and S/PDIF output. Gigabyte's Smart Fan 5 system provides hybrid PWM and DC fan headers across one CPU and two system fan headers, with per-sensor control and liquid-cooling-friendly configuration. RGB Fusion software controls the onboard RGB (RGBW) LED strip header, one CPU cooler LED header, and two digital LED strip headers for personalised lighting. The dual-BIOS design (DualBIOS) uses two 128 Mbit flash chips for resilience, backed by AMI UEFI with Q-Flash and @BIOS update utilities. The board also features Glass Fabric PCB construction for humidity resistance and anti-surge ICs for protection against irregular power delivery. Verifiable Specifications: - Socket: AM4 | Chipset: AMD B450 - Form Factor: Micro ATX, 24.4 cm × 24.4 cm - Memory: 4 × DDR4 DIMM, up to 64 GB, DDR4 2133–3200(O.C.) MHz, XMP supported - Storage: 1 × M.2 (PCIe 3.0 x4/x2 + SATA), 6 × SATA 6 Gb/s, RAID 0/1/10 - Display: HDMI 2.0 (4096×2160@60 Hz), DVI-D (1920×1200@60 Hz) - USB: 2 × USB 3.1 Gen 2, 4 × USB 3.1 Gen 1, 2 × USB 2.0 (rear panel) - Audio: Realtek ALC892, 7.1-channel HD Audio, S/PDIF out - LAN: Realtek GbE (10/100/1000 Mbit) - BIOS: Dual AMI UEFI BIOS - Warranty: 3 Years
Datasheet
| Warranty | 3 Years |
|---|---|
| Form Factor | mATX |
| Chipset | AMD B450 |
| CPU Type | AM4 Socket:AMD RyzenTM 2nd Generation processorsAMD RyzenTM with RadeonTM Vega Graphics processorsAMD RyzenTM 1st Generation processors(Please refer "CPU Support List" for more information.) |
| Lan | Realtek® GbE LAN chip (10/100/1000 Mbit) |
| USB | Chipset:2 x USB 3.1 Gen 2 Type-A ports (red) on the back panel2 x USB 3.1 Gen 1 ports available through the internal USB header6 x USB 2.0/1.1 ports (2 ports on the back panel, 4 ports available through the internal USB headers)CPU:4 x USB 3.1 Gen 1 ports on the back panel |
| Bios | 2 x 128 Mbit flashUse of licensed AMI UEFI BIOSSupport for DualBIOS™PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0 |
| Audio | Realtek® ALC892 codecHigh Definition Audio2/4/5.1/7.1-channelSupport for S/PDIF Out |
| Memory | 4 x DDR4 DIMM sockets supporting up to 64 GB of system memoryDual channel memory architectureSupport for DDR4 3200(O.C.)/2933/2667/2400/2133 MHz memory modulesSupport for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules (operate in non-ECC mode)Support 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 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 |
| Bundle Software | Norton® Internet Security (OEM version)Realtek® 8118 Gaming LAN Bandwidth Control Utility |
| Expansion Slots | 1 x PCI Express x16 slot, running at x16 (PCIEX16)* Actual support may vary by CPU.* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.(The PCIEX16 slot conforms to PCI Express 3.0 standard.)1 x PCI Express x16 slot, running at x4 (PCIEX4)1 x PCI Express x1 slot(The PCIEX4 and PCIEX1 slots conform to PCI Express 2.0 standard.) |
| 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.3D OSD@BIOSAutoGreenCloud StationEasyTuneFast BootGame BoostON/OFF ChargeRGB FusionSmart BackupSmart KeyboardSmart TimeLockSmart HUDSmart SurveySystem Information ViewerUSB BlockerV-TunerSupport for Q-FlashSupport for Xpress Install |
| Onboard Graphics | Integrated Graphics Processor:1 x DVI-D port, supporting a maximum resolution of 1920×1200@60 Hz* The DVI-D port does not support D-Sub connection by adapter.1 x HDMI port, supporting a maximum resolution of 4096×2160@60 Hz* Support for HDMI 2.0 version and HDCP 2.2.* Actual support may vary by CPU.Maximum shared memory of 16 GB |
| Operating System | Support for Windows 10 64-bitSupport for Windows 7 64-bit* To support Windows 7 64-bit, you must install an AMD Pinnacle Ridge & Summit Ridge CPU.* Please download the "Windows USB Installation Tool" from GIGABYTE's website and install it before installing Windows 7 |
| Storage Interface | 1 x M.2 connector (Socket 3, M key, type 2242/2260/2280/22110 SATA and PCIe 3.0 x4/x2 SSD support)6 x SATA 6Gb/s connectorsSupport for RAID 0, RAID 1, and RAID 10* Refer to "1-7 Internal Connectors," for the installation notices for the M.2 and SATA connectors |
| Back Panel Connectors | 1 x PS/2 keyboard/mouse port1 x DVI-D port1 x HDMI port2 x USB 3.1 Gen 2 Type-A ports (red)4 x USB 3.1 Gen 1 ports2 x USB 2.0/1.1 ports1 x RJ-45 port6 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 header2 x system fan headers1 x M.2 Socket 3 connector6 x SATA 6Gb/s connectors1 x CPU cooler LED strip/RGB LED strip header1 x RGB (RGBW) LED strip header2 x digital LED strip headers2 x digital LED strip power select jumpers1 x front panel header1 x front panel audio header1 x S/PDIF Out header1 x USB 3.1 Gen 1 header2 x USB 2.0/1.1 headers1 x Trusted Platform Module (TPM) header (2×10 pin, for the GC-TPM2.0 module only)1 x serial port header1 x parallel port header1 x Clear CMOS jumper |
| Multi-Graphics Technology | Support for AMD Quad-GPU CrossFire™ and 2-Way AMD CrossFire™ technologies |




