# Machine: acg-guru-5070

**Hostname:** acg-guru-5070
**Last Updated:** 2026-03-21

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## Hardware Specs

| Spec | Value |
|------|-------|
| Model | Lenovo Legion Pro 7 16IAX10H (DMI: 83F5) |
| CPU | Intel Core Ultra 9 275HX (24 cores, up to 5.4 GHz) |
| Memory | 32 GB DDR5 |
| GPU | NVIDIA GeForce RTX 5070 Ti Laptop GPU (12 GB VRAM) |
| Storage 1 | 954 GB NVMe (SK Hynix) - CachyOS root, btrfs |
| Storage 2 | 954 GB NVMe (SK Hynix) - /home, ext4 |

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## Software

| Spec | Value |
|------|-------|
| OS | CachyOS Linux (Arch-based) |
| Kernel | 6.19.9-1-cachyos |
| DE | KDE Plasma 6.6.3 (Wayland) |
| NVIDIA Driver | 595.45.04 (open kernel module) |
| CUDA | 13.2 |
| Python | 3.14 |

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## Claude Code Environment

- **Working Directory:** /home/guru/ClaudeTools
- **User:** guru
- **Shell:** fish
- **Git:** Configured for Gitea (git.azcomputerguru.com)

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## Network

| Interface | Address |
|-----------|---------|
| WiFi (wlan0) | 10.3.36.218 |
| Tailscale | 100.95.216.79 |

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## Capabilities

- [x] Git operations
- [x] SSH access to infrastructure
- [x] GrepAI semantic search (watcher running)
- [x] Ollama local AI (qwen3:14b, codestral:22b, nomic-embed-text)
- [x] MCP servers available
- [x] NVIDIA GPU (CUDA compute)
- [x] Claude Code CLI

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## Known Issues

### GPU Firmware Bug (RTX 5070 Ti)

The RTX 5070 Ti enters an error state (NVRM rpcSendMessage 0x00000062) after ~3-5 minutes of sustained GPU compute. This is a known Blackwell/RTX 50-series GSP firmware bug on Linux (NVIDIA bug #5953411). Affects all tested drivers (580.x, 590.x, 595.x).

**Impact:** GPU-accelerated ML workloads (Whisper transcription, etc.) cannot complete. GPU enters full ERR! state requiring hard power-off (warm reboot hangs with spinning symbol).

**Workarounds tried (none effective):**
- Disable Runtime D3 power management
- Enable persistence mode
- Lock GPU clocks
- Power cap reduction

**Status:** Waiting for NVIDIA driver fix. Heavy GPU compute delegated to Mac (M4).

### Custom Kernel for Audio

Running a custom-patched CachyOS kernel with the `nadimkobeissi/16iax10h-linux-sound-saga` patch for Awinic AW88399 smart amplifier support. Stock kernel has terrible speaker output. Patch is not upstreamed.

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## Notes

- Primary development workstation
- GPU works fine for display, light compute, Ollama inference — only fails under sustained heavy compute (Whisper, training)
- Sudo: NOPASSWD configured for guru user
- Old btrfs @home subvolume on nvme0n1 (from initial install before /home was moved to nvme1n1)
