From 1x3090 to 20 DGX Sparks: my house fuses were the first bottleneck

Starting with a single 3090 for LLaMA 33B, the user progressively scaled their local AI setup, acquiring a second 3090 for LLaMA 65B. They then transitioned to 4x ASUS GB10s, achieving 397B at 30 t/s on 400W, and later expanded to an 8-node cluster for MiMo 2.5 Pro and Kimi 2.6, running 397B at FP8. The user's commitment to local models led them to influence family members to adopt similar setups, with 20 DGX Sparks eventually being acquired.

This personal account details a unique scaling journey from a single 3090 to 20 DGX Sparks, unlike typical cloud-based AI infrastructure expansions.