After running a dual‑GPU setup, the author decided to expand their LocalLLM workstation by adding more memory slots. They paired a $75 126‑lane, 16‑core EPYC CPU with 128 GB (32×4) Samsung LRDIMM RAM costing $550, leaving four slots for future higher‑capacity sticks. With two NVMe drives, the system can accommodate up to six 16‑lane GPUs on a single 220 V outlet.