Your PC case's clearance specs might be wrong. Here's how to check

PCWorld reports that PC case clearance specs from manufacturers are often inaccurate, with Noctua testing over 100 cases and finding 56 with significant measurement errors. Brands like Asus and Lian-Li offer less clearance than officially listed, while some Corsair cases actually provide more space, risking incompatible builds or unnecessary returns. Noctua launched a database with accurate clearance data to help builders verify dimensions before purchasing components. Detailed instructions are provided below. PC builders know that millimeters matter.