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Tom’s Hardware
Tom’s Hardware
Technology
Mark Tyson

Enthusiast fixes 30-year issue with S3 graphics card — hacking the VBIOS fixes black levels by scalpelling out the Virge DX’s ‘pedestal bit’

S3 Virge graphics card.

A retro hardware enthusiast has demonstrated a fix that eliminates the washed-out appearance people can have with 1990s graphics cards from S3. In a recent video, Bits und Bolts (BuB) worked on an S3 Virge DX 4MB graphics card (1985-6) to investigate and neuter the ‘pedestal bit.’ This feature of the card’s VBIOS makes the darkest blacks more like charcoal, a highly undesirable feature if used to drive a good-quality monitor.

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