3
External and internal structure
Front panel
No. Icon Component No. Icon Component
1 Default power
supply unit (PSU)
7 Overheating/fan
failure LED indicator
2 Redundant PSU bay 8 LAN port 1/2 activity
indicators
3 USB 2.0 ports 9 HDD activity
indicator
4 Serial port 10 Power indicator
5 Optical disc drive
(ODD)
11 Reset button
6 Power failure LED
indicator
12 Power button
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