Chapter 1: Introduction C-3. Front Panel LED Indicators 1 2 3 4 5 6 7 1. Power Button 2. Reset Button 3. Power-on LED 4. Hard Drive Activity LED 5. LAN Port1 LED 6. LAN Port2 LED 7. Overheat/Fan Fail LED C-4. Front Panel LED Descriptions 1-9 LED Button Color Condition Description Power Green On System On Off System Off HDD Amber Blinking HDD Activity Off No Activity LAN1 & LAN2 Green On Linked Blinking LAN Activity Off Disconnected Overheat Red On System Overheat Off System Normal Blinking Fan Failure