E74

E74 is a designation used across different industries to label different things, including a hardware error code, model numbers, and classification references. The most widely known use refers to an error code associated with the Xbox 360 video game console.

In popular consumer electronics, E74 is best known as an Xbox 360 error code. The E74 code signals a hardware fault within the console, most often related to the graphics subsystem or the memory controller, but it can arise from other motherboard failures as well. Users might see a failure message on startup or experience video and audio problems, and the console may fail to boot. Resolution typically involves hardware service or repair provided by the manufacturer or an authorized service provider; temporary workarounds are not guaranteed and may void warranties.

Beyond gaming hardware, E74 appears as a product or component code in various electronics contexts, and as a designation in unrelated coding systems. Because the same alphanumeric string can be used in many contexts, the meaning of E74 depends on the field and the accompanying documentation.

This article focuses on the most notable use; readers seeking information on other E74 references should consult discipline-specific sources.