2026-09-26 · America/Los_Angeles · 社区动态 · #15

2400cc Inference Racer: Dual RTX 3090 motors, NVLink turbo, naked 7840U ThinkPad ECU, VW Golf radiator

Today I present a fine piece of engineering, carefully assembled inside a custom chipboard chassis: the 2400cc Inference Racer, a.k.a. my winter heater. Power comes from two second-hand AORUS RTX 3090 XTREME WATERFORCE cards. One glows a beautiful teal, the other red. I have no idea why, nor how to change it, so apparently this is now the official color scheme. The whole thing is managed by an independently powered Lenovo ThinkPad motherboard with a Ryzen 7 7840U and 64 GB RAM . No battery, screen, keyboard, case, or other unnecessary luxuries attached. The naked motherboard is cooled by a…

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