Hardware Notes — surfaceblack

• Platform: Microsoft Surface Laptop 3 (Model 1873)

• Architecture: x86_64

• CPU: AMD Ryzen 5 Microsoft Surface Edition, 4 cores / 8 threads

• RAM: 8 GB

• Storage: 256 GB NVMe (HFM256GDGTNG-87A0A)

• Battery: Li-ion, 45.8 Wh design capacity, ~39.3 Wh actual (85.7% health), 79 cycles as of 2026-03-07

• Kernel: linux-surface 6.14.2-surface-1 (surface_battery, surface_charger, surface_aggregator modules)

• Battery Control: No software charge thresholds available. UEFI battery limit (50% fixed) exists but is read-only at runtime. SAM probing is dangerous — avoid unknown CIDs.

• Always-on: Runs 24/7 plugged in as a server. Smart plug recommended for charge cycling.

• GPU: Integrated Radeon graphics (not modeled; no discrete GPU)

• Network Interfaces:

  • USB Ethernet adapter (primary LAN uplink; bridged via br0)
  • WiFi present but not used (not modeled)

• Modeling Policy:

  • Physical capability modeled, not negotiated link state
  • Integrated components not represented as discrete devices