ℹ
info HP
Status Power LED blinks 1 every 2 seconds
Normal Suspend Mode detected.
? What Causes This
Computer is in power-saving mode.
ⓘ What This Means
Reboot the system to normal operation.
Source: page 2 of the official manual
From the manual
This error code appears in:
HP Prodesk 600 G1 Small Form Factor PC