Last month I tried using my Xbox as a dedicated gaming computer for a week, and after running into all the little shortcomings, I decided to take matters into my own hands. In this video I try to build a Series S-style PC for under $200, keeping the two big benefits in mind: small form factor and low power draw (the Series S is around 80W). To get anywhere close, I started with a modern office PC—the Lenovo ThinkCentre M720s—because it’s compact, efficient, and a solid upgrade platform. Mine was $84 before tax with an i5-8400, 8GB RAM, a 256GB SSD, and a 210W PSU. From there, the whole challenge becomes the GPU. Low profile case, low wattage PSU—so I went with an Intel Arc A380 6GB low-profile card. It booted, it benchmarked, and then Cyberpunk was… pretty abysmal. It also literally didn’t fit, so yes, we had to cut the case. But the real performance killer was missing Resizable BAR, which Arc basically needs to function properly. After Lenovo’s BIOS protections blocked every normal flashing method, I used a CH341A programmer to flash a modified BIOS (after one very real brick-and-recover moment). With ReBar enabled, Cyberpunk jumped about a whole “tier” in settings—high with ReBar felt like medium without it—and the final build landed around $197.49 before tax.