!!
critical HP
Error Code System does not power on and LEDs are off/static
Computer is unable to power on entirely.
? What Causes This
Power supply malfunction or mainboard hardware failure.
✓ How to Fix It
- Check the outlet's electrical connection.
- If it still does not work, contact service technician for hardware check-up.
Source: page 2 of the official manual
From the manual
This error code appears in:
HP Compaq Elite 8300 Small Form Factor PC