Lenovo ThinkSystem SR860 Setup Manual page 32

Connectors and LEDs on the rear server
Figure 11. Rear view
Table 7. Components on the server rear view
1
AC power LED (green)
2
DC power LED (green)
3
Power supply error LED (yellow)
4
Power supply unit 2
5
Power supply unit 1
6
System error LED (yellow)
7
Identification button
1 AC power LED:
Each hot-swap power supply comes with an AC power LED and a DC power LED. When the AC power LED
is lit, it indicates that sufficient power is being supplied to the power supply through the power cord. During
normal operation, both the AC and DC power LEDs are lit. For more information, see "Lightpath Diagnostics"
in ThinkSystem SR860 Maintenance Manual.
2 DC power LED:
Each hot-swap power supply comes with a DC power LED and an AC power LED. When the DC power LED
is lit, it indicates that the power supply is supplying adequate DC power to the system. During normal
operation, both the ACand DC power LEDs are lit. For more information, see "Lightpath Diagnostics" in
ThinkSystem SR860 Maintenance Manual.
3 Power-supply error LED:
When the power-supply error LED is lit, it indicates that the power supply has failed.
4 5 Power supply units:
Install power supply units to these bays, connect them to power cords. Make sure the power cords are
connected properly. Following are the power supplies supported by this system:
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ThinkSystem SR860 Setup Guide
8
Identification LED (blue)
9
USB 4 (USB 3.0)
10
USB 3 (USB 3.0)
11
Serial connector
12
VGA connector
13
NMI button
14
Lenovo XClarity Controller network connector