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cat /proc/build█

Lenovo Legion 5 15ACH6H

Model 82JU · BIOS GKCN58WW · Gen 6 (2021) · 15.6" chassis

Specs

CPU AMD Ryzen 7 5800H — 8C/16T · 4.4 GHz · Zen 3 · 7nm
GPU NVIDIA GeForce RTX 3060 Laptop — 130W TGP · 6 GB GDDR6 · Ampere
iGPU AMD Radeon Vega 8 — 8 CU · 512 shaders · GCN 5
RAM 16 GB DDR4-3200 — 2× SO-DIMM · max 32 GB
Display 15.6" FHD (1920×1080) · 165Hz IPS · Dolby Vision · DC Dimmer
Storage M.2 2280 NVMe PCIe 3.0×4 — single slot
Wi-Fi Intel AX200 — Wi-Fi 6 · BT 5.1 · iwlwifi
Battery 80 Wh · 4-cell Li-Ion · 300W barrel charger · USB-C PD
OS CachyOS KDE Plasma 6 — linux-cachyos (BORE · sched-ext) · x86-64-v3

Config

GPU Mode

BIOS MUX switch (F2 → Configuration → Graphics Mode). Discrete for gaming (full 130W), Hybrid for battery life, iGPU-only for travel. HDMI 2.1 is hardwired to the RTX 3060.

Fan Control

LenovoLegionLinux via AUR — 10-point fan curve GUI, 3 power modes (Quiet/Balanced/Performance), Fn+Q switching. Persists via systemd service.

Power Management

amd-pstate EPP driver (active by default) + TLP. Battery conservation mode caps at 60–80% charge. KDE Power Profiles for quick mode switching.

Gaming Stack

Steam + Proton-CachyOS (Anti-Lag 2 + FSR4 ML), MangoHud overlay, GameMode, Gamescope for HDR. RTX 3060 delivers ~5–20% lower FPS vs Windows depending on the title.

Resizable BAR

Enabled in BIOS — Above 4G Decoding + Re-Size BAR Support. Gives 0–12% FPS gain in supported titles. Confirmed working on linux-cachyos.

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