Recently, an individual using an RTX 4090 graphics card encountered a notable decrease in its video memory (VRAM), with the initial 24GB capacity diminishing by roughly 1.5GB. Several diagnostic tools indicated uncorrectable errors in the GDDR VRAM. Despite multiple repair attempts, Gigabyte, the manufacturer of the graphics card, persisted in refusing a replacement, stating that the graphics card was still capable of booting up and operating as usual.