I picked up a pair of Supermicro CSE-813M 1U servers for $175 each, and since the deal was honestly too good to pass up, I decided to turn one into a low-cost Chia plotting machine. These came with the X10SRI-F board, rails, CPU heatsink, and the air baffle, so it was a perfect starting point for a compact “pizza box” plotter. I originally thought I’d do a DDR3 build because used parts are cheap, but after pricing things out, going DDR4 made more sense instead of investing in older tech. For compute, I went with a Xeon E5-2699 v3 (18c/36t, 145W) and 64GB of DDR4 ECC (4x16GB). For temp/final plotting storage, I used two 1TB NVMe drives and put them into a software RAID 0 (mdadm), which gave me about 1.8TB usable and excellent burst write speeds. The 1U fitment was the tricky part: the NVMe risers were too tall, so I used the 90-degree slot and modified an angle bracket with a Dremel to mount the second riser. After dialing in MadMax settings (34 threads, 256 buckets), I landed at about a 24–25 minute K32 plot time for a total build cost of $625. The big limiter is thermals—CPU temps were hovering around 90C and throttling clocks—so my next step is trying a vapor chamber heatsink to see if I can pull a bit more performance out of this little 1U box.