Processor errors
36 errors. Choose the message that matches your computer.
WHEA_UNCORRECTABLE_ERROR
Critical CPU or chipset hardware error (BSOD 0x124). Caused by voltage instability, overheating or overclocking.
ProcessorCLOCK_WATCHDOG_TIMEOUT
The CPU core stopped responding to an interrupt request. Caused by overclocking or faulty driver.
ProcessorCPU-THERMAL-THROTTLE
This diagnosis detects processor speed limitation events (Event ID 37 or 196 in the Windows System Event Log). The CPU reached its thermal limit and activated throttling to prevent hardware damage, resulting in…
ProcessorMACHINE_CHECK_EXCEPTION
The CPU has detected a fatal hardware error. It could be a faulty processor or motherboard.
ProcessorCPU-VCORE-LOW
Powering the processor below the minimum causes instability and crashes. Common triggers are weak resource, damaged VRM and bad EPS connector.
ProcessorCPPC-NOT-SUPPORTED
Collaborative Processor Performance Control is not active. Reduces the effectiveness of CPU boost.
ProcessorPOWER-LIMIT-THROTTLE
The CPU is running below maximum power due to the PL1/PL2 limits of the motherboard or laptop. Reports of Limiting CPU performance with a performance limit of usually describe a sudden crash, brief unresponsiveness,…
ProcessorL1-CACHE-ERROR
The processor's internal L1 cache reported an unrecoverable data error. Extreme system instability.
ProcessorPROCHOT-SIGNAL
The Processor Hot (PROCHOT) signal has been activated, which causes extreme throttling, sometimes even at low temperatures. Common triggers are defective voltage regulator (VRM) and for laptops – defective battery /…
ProcessorPROCHOT-1
The processor slows down to avoid overheating and damage. Typical causes include dried thermal paste, overclocking too aggressively, silicon degradation and weak power supply.
ProcessorVCORE-DROP
The power supply cascade does not supply sufficient voltage to the load. This usually traces back to dried thermal paste, overclocking too aggressively and silicon degradation.
ProcessorL2-CACHE-EXC
The processor encountered corrupted data in its own cache. Common triggers are dried thermal paste, overclocking too aggressively, silicon degradation and weak power supply.
ProcessorUCODE-0x1A
The processor's internal instruction set encountered an unknown exception. Typical causes include dried thermal paste, overclocking too aggressively, silicon degradation and weak power supply.
ProcessorSMT-SYNC-FAIL
The logical cores have lost synchronization with each other. Typical causes include dried thermal paste, overclocking too aggressively, silicon degradation and weak power supply.
ProcessorIMC-FAULT-00
The controller inside the processor cannot communicate stably with the RAM. Reports of Integrated Memory Controller (IMC) failure usually describe a sudden crash, brief unresponsiveness, or a stop-code screen…
ProcessorAVX-PANIC
Calculation error when using AVX/AVX2 wide vector instructions. Typical causes include dried thermal paste, overclocking too aggressively, silicon degradation and weak power supply.
ProcessorC-STATE-HUNG
The processor failed to properly wake up from sleep. Common triggers are dried thermal paste, overclocking too aggressively, silicon degradation and weak power supply.
ProcessorVRM-TEMP-CRIT
VRM sensors on the motherboard report critical temperatures limiting the CPU. This usually traces back to dried thermal paste, overclocking too aggressively, silicon degradation and weak power supply.
ProcessorSOCKET-PIN-FLT
The pins in the processor socket do not touch, which causes accidental disconnection of the lines. Typical causes include dried thermal paste, overclocking too aggressively, silicon degradation and weak power supply.
ProcessorTDP-LIMIT-MAX
The processor draws more power than the BIOS allows. The usual suspects are dried thermal paste, overclocking too aggressively and silicon degradation.
ProcessorBCLK-JITTER
The basic frequency generator on the board fluctuates. Reports of Base clock instability (BCLK) usually describe a sudden crash, brief unresponsiveness, or a stop-code screen appearing out of nowhere.
ProcessorBRANCH-PRED-ER
The jump prediction logic inside the CPU failed, typical of aging silicon. The usual suspects are dried thermal paste, overclocking too aggressively and weak power supply.
ProcessorFPU-MATH-ERR
The floating point unit returns imprecise results. Reports of Coprocessor math error (FPU) usually describe a sudden crash, brief unresponsiveness, or a stop-code screen appearing out of nowhere.
ProcessorRING-BUS-FAIL
The bus connecting the cores inside the processor collapsed. The usual suspects are dried thermal paste, overclocking too aggressively, silicon degradation and weak power supply.
ProcessorAMD-FCLK-INFINITY-ERR
AMD systems crash or become unstable due to out of sync FCLK (Infinity Fabric clock) and MEMCLK. Another common trigger is weak RAM modules with XMP above DDR5-6000.
ProcessorCPU-PSTATE-ERR
Processor failed to transition to a requested performance state. This usually traces back to BIOS bug and faulty power management driver.
ProcessorWHEA_BOOT_LOOP
A critical CPU power delivery or microcode stability failure that prevents the operating system from completing its boot sequence, triggering a repetitive Blue Screen (BSOD) before reaching the desktop. The usual…
ProcessorINTEL_13_14_DEGRADATION
A critical microcode and hardware degradation issue affecting Intel Core 13th and 14th Generation desktop processors. The CPU requests excessive voltages, leading to physical degradation of silicon, out-of-memory…
ProcessorINTEL_TDP_THROTTLING
Intel Power Limit Throttling (PL1 or PL2) triggers when the processor exceeds its long-duration or short-duration power limits, reducing core frequencies to keep power draw within design specs. Typical causes include…
ProcessorCORE_PAGING_MULTIPLE_IRP_COMPLETE_REQUESTS
The CORE_PAGING_MULTIPLE_IRP_COMPLETE_REQUESTS error is a critical CPU/memory paging fault occurring when the I/O request packet system detects duplicate completions. This indicates a severe inconsistency in the CPU…
ProcessorCPU-PACKAGE-TEMP-LIMIT
The CPU package temperature has reached or exceeded the manufacturer's maximum junction temperature (Tjmax), typically 100°C for Intel and 95°C for AMD. The processor initiates emergency thermal shutdown to prevent…
ProcessorINTEL-MICROCODE-UPDATE-FAIL
The INTEL-MICROCODE-UPDATE-FAIL error occurs when the system BIOS attempts to load a CPU microcode patch and fails. Intel releases microcode updates to fix CPU errata, security vulnerabilities (Spectre, Meltdown,…
ProcessorAMD-PSP-ERROR
The AMD Platform Security Processor (PSP) is an ARM Cortex-A5 security coprocessor embedded in AMD CPUs and APUs. A PSP error typically manifests as a boot failure with debug LED codes or BIOS error messages.
ProcessorThermal Shutdown
The system firmware or motherboard sensors detected temperatures exceeding critical safe operating limits (usually Tj Max of 95°C to 105°C), triggering an immediate emergency power cut to prevent permanent silicon…
Processor0x00000124
The Windows Hardware Error Architecture (WHEA) has detected an uncorrectable hardware exception. Most commonly caused by CPU core voltage instability, overheating cores, unstable memory profiles (XMP/EXPO), or…
Processor0x0000009C
A Machine Check Exception (MCE) is a hardware error detected by the CPU itself, indicating a fatal hardware failure. Commonly caused by hardware overheating, unstable overclocking multipliers, incorrect CPU core…