CLOCK_WATCHDOG_TIMEOUT (0x101)

What is this error?

An expected clock interrupt on a processor was not received within the timeout interval. Indicates CPU or motherboard issue.

Common causes

  • CPU overclocking instability
  • motherboard VRM issue
  • failing CPU
  • BIOS bug
  • power delivery problem

How to fix it

  1. Disable overclocking
  2. update BIOS
  3. check CPU temperatures
  4. test with stock settings

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Detailed analysis

Bug check 0x00000101 (CLOCK_WATCHDOG_TIMEOUT) occurs when a processor fails to deliver a clock interrupt within the expected time. This means a CPU core became unresponsive — either it was stuck executing something, overheated and halted, or the clock signal was disrupted. The parameters identify which processor core timed out. Common causes: CPU overclock instability (core can't maintain the requested frequency under load), motherboard VRM overheating (can't deliver stable voltage to CPU), failing CPU (especially Intel 13th/14th gen degradation), or a BIOS bug. Fixes:

  1. Reset BIOS to defaults — disable ALL overclocking,
  2. Update BIOS to latest version,
  3. Monitor CPU temperature and VRM temperature during stress test,
  4. If the same core always fails: the CPU may be degraded — run Intel/AMD diagnostic tool,
  5. For Intel 13th/14th gen: apply microcode 0x129+ to prevent further degradation,
  6. Test with reduced core count in BIOS to identify failing core.

When to seek help

If this error keeps happening after trying the fixes above, it may point to a deeper hardware or system issue. Consider professional help if:

  • The crash occurs across multiple games or applications
  • You see the same error after a clean Windows install
  • Your PC is less than a year old (could be a warranty issue)
  • You smell burning or hear unusual sounds from your PC

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