Error Code Portal
MicrosoftWindows Win32Error code

725

ERROR_MP_PROCESSOR_MISMATCH

Alternative forms: 0x000002D5 · 0x2D5 · ERROR_MP_PROCESSOR_MISMATCH · 0x800702D5

What does this code mean?

Code 725 · An issue reported by Windows Win32.

Official explanation · Original text

The CPUs in this multiprocessor system are not all the same revision level. To use all processors the operating system restricts itself to the features of the least capable processor in the system. Should problems occur with this system, contact the CPU manufacturer to see if this mix of processors is supported.

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

System Error Codes (500-999) (WinError.h) ↗

Creator: Microsoft and MicrosoftDocs contributors
License: Creative Commons Attribution 4.0 International
Checked on: 2026-11-12

Modifications: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source details · Original licenses and notices