Covers installing fan-control.sh + systemd service (replacing iDRAC's 100% fan response to non-Dell GPUs), configuring iDRAC BIOS hard disk drive sequencing via racadm, and the Linux-layer stagger-spinup service as a safety net. Phases 11 and 12 stubbed as placeholders. https://claude.ai/code/session_01U7bSqj83VPbMZ9L8LTYa41