Lenovo x3530 M4 Installation And Service Manual page 34

Figure 10. The LEDs on the rear of the server
• PCI riser slot 1: Insert a full-height, half-length PCI Express adapter into this slot. See "Installing an
adapter" on page 46 for the supported adapters for these riser-cards.
• PCI riser slot 2: Insert a low-profile PCI Express adapter into this slot. See "Installing an adapter" on
page 46 for information about adapters that this riser card support.
• Power connector: Connect the power cord to this connector.
• AC power LED: Each power supply has 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 any other combination of LEDs,
see "Power-supply LEDs" on page 119.
• DC power LED: Each power supply has 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 ac and dc power LEDs are lit. For any other combination of LEDs, see "Power-supply
LEDs" on page 119.
• Power-supply error LED: Each power supply has an ac power LED and a dc power LED. When the
power-supply error LED is lit, it indicates that the power supply has failed.
• Video connector: Connect a monitor to this connector. The video connectors on the front and rear of
the server can be used simultaneously.
Note: The maximum video resolution is 1600 x 1200 at 75 Hz.
• Serial connector: Connect a 9-pin serial device to this connector. The serial port is shared with the
integrated management moduleII (IMM2). The IMM2 can take control of the shared serial port to redirect
serial traffic, using Serial over LAN (SOL).
• USB connectors: Connect a USB device to any of these connectors.
• Ethernet activity LEDs: When these LEDs are lit, they indicate that the server is transmitting to or
receiving signals from the Ethernet LAN that is connected to the Ethernet port.
• Ethernet link LEDs: When these LEDs are lit, they indicate that there is an active link connection on the
10BASE-T, 100BASE-TX, or 1000BASE-TX interface for the Ethernet port.
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Lenovo System x3530 M4 Installation and Service Guide