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It’s been 30 years since Intel’s infamous Pentium FDIV bug reared its ugly head – a math bug caused Intel’s first CPU recall

2024 marks the 30th anniversary of Intel's announcement of a math glitch on some of its Pentium CPUs (via Heise). In 1993, Intel launched its first generation Pentium CPUs, which used the new P5 ...
Hackaday

A Die-Level Look At The Pentium FDIV Bug

The early 1990s were an interesting time in the PC world, mainly because PCs were entering the zeitgeist for the first time. This was fueled in part by companies like Intel and AMD going head-to-head ...
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30-year-old Pentium FDIV bug tracked down in the silicon — Ken Shirriff takes the microscope to Intel's first-ever recall

Noted hardware historian and reverse-engineer Ken Shirriff recently found the exact transistors in the original Intel Pentium which caused the "FDIV bug", leading to a $475 million recall in 1994. As ...
PC Magazine

FDIV bug

(Floating Point DIVision bug) A flaw in early Pentium chips that, in certain cases, caused an erroneous result from the FDIV floating point division instruction. It surfaced in late 1994, and Intel ...