MSI B450M Mortar Max DDR4 AMD Motherboard

The MSI B450M Mortar Max is a Micro-ATX motherboard built on the AMD B450 chipset, designed for the AM4 socket and compatible with 1st, 2nd, and 3rd Generation AMD Ryzen processors, as well as Ryzen with Radeon Vega Graphics and Athlon with Radeon Vega Graphics desktop CPUs. It measures 9.6 x 9.6 inches (24.4 x 24.4 cm) and features 8 mounting holes for standard mATX chassis installations. Memory support is a key strength: four DDR4 DIMM slots accommodate up to 64 GB in dual-channel configuration. JEDEC speeds start at 1866 MHz and run up to 2667 MHz, while A-XMP overclocking profiles push Ryzen Gen3 (R5/R7/R9) systems to 4133 MHz. The board also supports non-ECC UDIMM and ECC UDIMM memory (operating in non-ECC mode). Storage options include two M.2 Key-M slots and four SATA 6 Gb/s ports. The primary M.2 slot (M2_1) operates via the CPU and supports PCIe 3.0 x4 for compatible Ryzen processors, while the second (M2_2) is chipset-driven at PCIe 2.0 x4. RAID 0, 1, and 10 are available for SATA drives; RAID 0 and 1 are supported for M.2 NVMe devices. Expansion is handled through one PCIe 3.0 x16 slot (running at x16, x8, or x4 depending on CPU), one PCIe 2.0 x16 slot operating at x4 mode, and two PCIe 2.0 x1 slots. Two-way AMD CrossFire is supported for multi-GPU configurations. Connectivity on the rear panel includes one USB 3.2 Gen2 Type-C port, one USB 3.2 Gen2 Type-A port, four USB 3.2 Gen1 Type-A ports from the CPU, two USB 2.0 Type-A ports, DisplayPort, HDMI 1.4, Gigabit LAN (Realtek RTL8111H-CG), optical S/PDIF output, HD audio jacks, and a PS/2 combo port. The dedicated Flash BIOS Button on the rear panel allows BIOS updates from a USB drive without a CPU, memory, or GPU installed. Audio is handled by a Realtek ALC892 codec delivering 7.1-channel high-definition audio with S/PDIF output. Onboard graphics output—DisplayPort and HDMI 1.4—is available only with APU-class processors that include integrated Radeon graphics. Internal headers include two 5050 RGB LED strip 12V connectors, one 4-pin CPU fan connector, three 4-pin system fan connectors, TPM module connector, chassis intrusion connector, and Clear CMOS jumper. The board carries a 3-year manufacturer warranty and supports Windows 10 64-bit (Windows 7 64-bit requires a Pinnacle Ridge or Summit Ridge CPU). Verifiable Specifications: - Form Factor: Micro-ATX (9.6 x 9.6 in / 24.4 x 24.4 cm) - Socket: AMD AM4 - Chipset: AMD B450 - CPU Support: 1st, 2nd, 3rd Gen AMD Ryzen; Ryzen/Athlon with Radeon Vega Graphics (AM4) - Memory: 4x DDR4 slots, max 64 GB, up to 4133 MHz (A-XMP OC, Ryzen Gen3) - Storage: 2x M.2 (PCIe 3.0 x4 + PCIe 2.0 x4), 4x SATA 6 Gb/s - USB: 1x USB 3.2 Gen2 Type-C, 1x USB 3.2 Gen2 Type-A, 4x USB 3.2 Gen1, 6x USB 2.0 - Audio: Realtek ALC892, 7.1-ch HD Audio, S/PDIF - LAN: Realtek RTL8111H-CG Gigabit - Multi-GPU: 2-Way AMD CrossFire - RGB: 2x 5050 12V RGB headers - Warranty: 3 Years