I have an Intel S3420 server board that I am trying to add ram to and it will not post. Both are registered 1333 ddr3 ECC unless I am wrong. Any help is greatly appreciated, it on my Proxmox machine. Two different sticks in the pic below. Smaller is 4Gb and larger is 8Gb

Hello fellow homelabbers, have you ever looked at the costs of your hobby? In this case, I’m referring to energy costs. Managing a homelab is a fantastic retirement hobby for me, but "enterprise-grade" hardware can quickly turn an electricity bill into a ?. Over the past few days, I conducted a thorough energy audit of my entire ecosystem—spanning my servers, networking core, and my dedicated management workstation. Through precise optimization of both my hardware and software, I successfully trimmed the fat, transforming a hungry setup into a highly efficient, automated media and virtualization powerhouse. My Summary When running 24/7, even small power drains add up over 365 days. My fully optimized homelab and network now consume an average of ~257 Watts of continuous power. On an annual basis, this translates to 2,250 kWh. Based on my fixed contract energy rate of €0.28372 per kWh, this results in a highly realistic and well-managed total cost of approximately €638.37 per year (around €53.20 per month). Given that my environment handles massive storage (80TB+), heavy virtualization (Proxmox, Windows 11, Docker), and active management for 5 to 6 hours a day, I am incredibly happy with this efficiency. My System-by-System Breakdown (Realistic Averages) My calculations do not look at theoretical "perfectly idle" numbers. Instead, they reflect my real-world mix of quiet periods, active usage, and automated workflows. 1. My Compute & Storage Core - Aoostar WTR Max NAS (~22W to ~45.5W | Average: ~30W) - Specs: AMD Ryzen 7 8845HS, 80GB ECC DDR5, 1x NVMe SSD, 4x 16TB High-Capacity HDDs. - Role: My primary data vault. - Lenovo ThinkStation P520 - System A (~65W to ~85W | Average: ~77W) - Specs: Intel Xeon W (6-Core/12-Threads), 128GB ECC DDR4, 2x SSDs, 4x 4TB HDDs, NVIDIA Quadro P1000. - Role: My heavy lifter. Runs Proxmox VE, hosting my VM's,LXC's, Homeassistant,Dockers, and my core Plex media streaming architecture. - Lenovo ThinkStation P520 - System B (Average: ~65W)