windows whea

Windows WHEA is the Windows Hardware Error Architecture, the framework Windows uses to report hardware errors such as machine checks and corrected or uncorrected memory faults. The tagged content here examines what WHEA can and cannot tell you, using the DDR5 on-die ECC versus true ECC RAM debate as the example. Consumer DDR5 modules perform internal error correction, but that is not the same as the ECC that servers and workstations rely on, and the distinction affects whether Windows will surface a memory failure at all. This tag is useful for readers interpreting WHEA events, judging memory error reporting, and understanding hardware error visibility in Windows.