!!
critical HP
Error Code red LED flashes four times per second, followed by a two second pause; computer emits four beeps each cycle but stops after fifth iteration while LEDs continue to flash red and white
Thermal protection activation — the processor may have overheated.
? What Causes This
Processor cooling fan is blocked or not turning properly, or heat sink is improperly attached to processor.
✓ How to Fix It
- Ensure that air vents are clear and fans are running freely.
- Open access panel and verify system board header connections for all fans. Replace faulty fan if found defective.
Source: page 76 of the official manual
From the manual
This error code appears in:
HP Elitedesk 800 G4 Small Form Factor PC