clock_watchdog_timeout
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Microsoft · Windows
A processor core did not respond to an interrupt within the expected time — one CPU core stopped responding while other cores were still functioning, indicating a potential hardware or overclocking issue
Quick Answer
Error code CLOCK_WATCHDOG_TIMEOUT on your Microsoft Windows means: A processor core did not respond to an interrupt within the expected time — one CPU core stopped responding while other cores were still functioning, indicating a potential hardware or overclocking issue. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
If overclocked, revert CPU to stock settings immediately — enter BIOS and load optimized defaults
2
Update your BIOS/UEFI firmware to the latest version from the motherboard manufacturer — newer BIOS versions include CPU microcode updates
3
Monitor CPU temperatures with HWMonitor or Core Temp during normal use and under load — ensure they stay below 85°C under load
4
If using XMP/DOCP for RAM, try disabling it and running RAM at default JEDEC speeds
5
Run a CPU stress test (Prime95 Small FFTs or AIDA64) for 30 minutes to check stability
6
Test each RAM stick individually in different slots to rule out memory controller issues
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
Parts You May Need
Improved CPU cooler if overheating
Replacement RAM if memory controller instability confirmed
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