Gigabyte B450M DS3H-CF upgrades

Released 2018 · on sale

This is the original B450M DS3H (CF = internal model ID), NOT the V2 or WIFI variants, whose CPU/RAM support differs — check your revision before buying parts. No memory card slot, no U.2/SATA Express, no onboard 2.5"/3.5" bays. Kingston's page caps configurations at 64 GB (its own modules) while Gigabyte's manual states 128 GB.

Upgrade guide → What fits, step by step, and official documents.

4x DDR4 DIMM (dual-channel), up to 128 GB: 4 × DDR4 DIMM · up to 128 GB total · 3600 MT/s
1x M.2 M-key (SATA/NVMe) + 4x SATA 6 Gb/s: 5 × SSD / HDD M.2 2242 / M.2 2260 / M.2 2280 / M.2 22110 (NVMe / SATA)
AMD AM4 socket (1x PGA), B450 chipset: AM4 · Ryzen 5000, Ryzen 3000, Ryzen 3000, Ryzen 5000, Ryzen 3000

Slot map

Schematic of the upgradeable slots (not to scale). Check the owner's manual for their exact positions.

4x DDR4 DIMM (dual-channel), up to 128 GB 4 × DDR4 DIMM · up to 128 GB total · 3600 MT/s

DDR4-2933 native; DDR4-3600 possible via XMP/OC. Achievable speed depends on CPU memory controller and drops with 4 DIMMs or dual-rank. Unbuffered ECC modules fit but run in non-ECC mode. 32 GB DIMMs are the least validated; Kingston lists 64 GB kits. Buy matched pairs for dual-channel.

No compatible offers right now.

1x M.2 M-key (SATA/NVMe) + 4x SATA 6 Gb/s 5 × SSD / HDD M.2 2242 / M.2 2260 / M.2 2280 / M.2 22110 (NVMe / SATA)

M.2 slot is Socket 3 M-key, PCIe 3.0 x4 or SATA; B-key-only and Key-E modules do not fit. A SATA M.2 drive disables at least one SATA port. No drive bays on the board itself; 2.5"/3.5" mounting and 7/9.5 mm SSD thickness limits are set by your case. RAID 0/1/10 on SATA only.

No compatible offers right now.

AMD AM4 socket (1x PGA), B450 chipset AM4 · Ryzen 5000, Ryzen 3000, Ryzen 3000, Ryzen 5000, Ryzen 3000

Rev 1.x manual lists Ryzen 1000/2000 and Vega APUs; Ryzen 3000/5000 gained support via BIOS updates (CPU support list varies by PCB revision; V2/WIFI differ). No USB BIOS Flashback, so old-stock boards may need an older CPU to flash. No manufacturer TDP cap documented; 105 W parts are on the CPU list but the 4+3-phase VRM limits overclocking headroom. HDMI/DVI outputs only work with an APU.

No compatible offers right now.