Lenovo Legion 5 15ARH05 upgrades
Released 2020 · on sale
CPU is BGA-soldered (Ryzen 5 4600H / Ryzen 7 4800H 'Renoir-H') - no CPU socket, no upgrade path. IMPORTANT: the 15ARH05 is the 2020 model (Type 82B1/82B5); most retrieved sources describe the 2021 15ACH6H (Type 82JU), a sibling with a different CPU/GPU and storage layout. Memory and M.2 parts are interchangeable in kind, but ARH05-specific storage-bay details are unverified - confirm with Lenovo PSREF and the HMM for your exact MTM before buying.
Upgrade guide → What fits, step by step, and official documents.
- 2x DDR4-3200 SO-DIMM slots (none soldered): 2 × DDR4 SO-DIMM · up to 64 GB total · 3200 MT/s
- 2x M.2 2280 NVMe + 2.5" SATA bay (SKU-dep.): 3 × SSD / HDD M.2 2280 / 2.5" (NVMe / SATA) · max 7 mm thick
Slot map
2x DDR4-3200 SO-DIMM slots (none soldered) 2 × DDR4 SO-DIMM · up to 64 GB total · 3200 MT/s
Both slots are user-accessible under a small cover (bottom panel is very stiff to remove - use a plastic pry tool). Lenovo certifies 16 GB per slot / 32 GB total; 2x32 GB (64 GB) generally works but is uncertified. Unbuffered non-ECC DDR4-3200 SO-DIMM only; buy a matched pair for dual channel. ARH05 specifics not in retrieved sources - confirm by MTM 82B1/82B5 in PSREF/HMM.
No compatible offers right now.
2x M.2 2280 NVMe + 2.5" SATA bay (SKU-dep.) 3 × SSD / HDD M.2 2280 / 2.5" (NVMe / SATA) · max 7 mm thick
M.2 slots are 2280 M-key PCIe 3.0 x4 NVMe only - SATA M.2 drives are NOT supported; PCIe 4.0 drives work at 3.0 speed. A 2.5" SATA 6 Gb/s bay (7 mm max) exists on some 15ARH05 SKUs but is absent on others, and the HDD cable/caddy is often not included - verify by serial/MTM before ordering. No documented capacity cap for the ARH05; 2 TB/4 TB drives fit. ARH05 storage layout flagged as unverified in sources.
No compatible offers right now.