AMD’s diagnostic and validation software for graphics card had a bug that failed to detect defective ATI Radeon HD 2400 and 2600 according to digitimes. Asustek Computer, Micro-Star International and Gigabyte Technology encountered the problem. Channel vendors pointed out that the problem was in the BIOS. Problems in BIOS can be easily solved but the defective cards have to be returned to AMD to reapply BIOS update. One of the first-tier makers has recalled more the 20,000 cards and only few of the defective cards have reached consumers hand.