"CPUID.1F" refers to multi-die/package support for x86 processor topology in Linux kernel updates.
The Essence of Future Mobility Lifestyle - Hyundai Motor Group 1F Multi
Commonly performed using GMAW (Gas Metal Arc Welding/MIG). 2. Welding Procedure Pass Count: Total of three passes. "CPUID
1F (Flat position, where the joint is tilted at approximately 45 degrees so the weld pool is level). 1F Multi
Place the center of the electrode on the edge (toe) of the previous bead to ensure they fuse into a single solid reinforcement.
While welding is the primary match, "1F Multi" appears in other niche technical fields:
To pass inspection, the 1F Multi-pass weld must meet several quality standards found in technical guides like those from ATE Central :