I picked up an HP Z440 workstation, crammed it full of upgrades, and tried to answer a simple question: can this decade-old box still pull its weight as a budget workstation or an all-in-one home server? The short version is yes—but getting there was a bit of a roller coaster thanks to some classic HP choices. I tore it down, cleaned it up, updated the BIOS, and immediately hit one of the biggest surprises in the whole project: PCIe bifurcation wasn’t showing up… until the BIOS update, and then it actually worked. That one change completely shifts what this platform can do for NVMe storage. From there I upgraded to a Xeon E5-2687W v4 (12c/24t), loaded it with 256GB of registered ECC DDR4, experimented with GPUs, and ran benchmarks in DaVinci Resolve, Blender, and Cinebench R23. Performance is “fine” for the money, but efficiency is not the strong suit—this thing can pull real power under load. Then I moved into homelab mode: Proxmox, headless boot (which required a weird hidden BIOS option via HP’s BIOS Configuration Utility), ZFS-mirrored NVMe boot, 10Gb networking, extra NICs, and a pile of 24TB drives. In the end, it’s not perfect, but it’s ridiculously fun to tinker with, and the expandability is still the real reason to buy one.