What’s going on Cryptocurrency Universe, it’s The Bitcoin Miner here. In this build I take one of my classic server-style CPU mining rigs and finally add GPUs—six RTX A4000s—so I can run a 6 graphics card + CPU mining setup in a forced-air box. I talk through why I went with the A4000s (I got them at a decent rate and they’ve been more stable in my testing than the Sapphire card I had in the rig), and how I’m using the M.2 expansion slots to make six cards doable even though the motherboard choice wasn’t originally made with GPU mining in mind. I also break down power planning with the EVGA 1600 T2: nine EVGA cable slots is enough to run the risers and the A4000s cleanly if you cable it right. I show my cable management approach for airflow, how I route excess cabling behind the PSU, and a couple practical tips—like plugging risers in order so troubleshooting is painless, and being patient with 4-pin Molex connections so you don’t force a sketchy adapter. I also explain the airflow direction of this case and why it works for hot wall / cold wall setups by pushing GPU heat straight out the back. Big takeaway: A4000s are slim, server-friendly cards, but they still dump heat—so don’t treat them like “open-air is fine.” If you want them to last, run them in a forced-air setup and keep the wiring neat so the box can do its job.