!!
critical HP
Error Code PWR LED flashing red
Indicates error detected by system hardware.
? What Causes This
Internal issues with hardware components like memory, processor, or PSU.
✓ How to Fix It
- Refer to POST error messages and LEDs in manual (Chapter 7).
- Disconnect power and unplug peripherals for at least 30 seconds.
- Retry boot-up process.
Source: page 84 of the official manual
From the manual
This error code appears in:
HP Elitedesk 800 G2 Small Form Factor PC