Lenovo RD540 manual Hot-swap redundant power supply 2 available in some models

The following illustration shows the rear view of the server with two hot-swap power supplies.

				9		8
Figure 13. Rear view of the server
		Hot-swap redundant power supply 2 (available in		VGA DB-15 connector
	1		7
	some models)
		Hot-swap redundant power supply 1		Ethernet connector 1 (RJ-45)
	2		8
		Low-profile PCI Express card slot		Ethernet connector 0 (RJ-45) (for system management)
	3		9
		PCI Express card slot			Serial port
	4		10
		Ethernet connector 2 (RJ-45)			ID LED
	5		11
		USB connectors (4)
	6

1

Hot-swap redundant power supply 2 (available in some models)

2

Hot-swap redundant power supply 1

The hot-swap redundant power supplies help you avoid significant interruption to the operation of the system when a power supply fails. You can purchase a hot-swap redundant power supply option directly from Lenovo and install the power supply to provide power redundancy without turning off the server.

On each hot-swap redundant power supply, there is a status LED near the power cord connector. When the LED is lit in green, it indicates that the hot-swap redundant power supply is working correctly. When the LED is lit in amber, it indicates that the hot-swap redundant power supply is likely to fail or has failed.

3

Low-profile PCI Express card slot

It is recommended to attach a RAID card to the low-profile PCI Express card slot.

Note: If a ThinkServer HBA is available, refer to its user guide for detailed information. The user guide is available for download at:

http://www.lenovo.com/UserManuals

Physical link width	Negotiable link width	Supported card length and height
x8	x8, x4, x2, x1	Low-profile card

Chapter 3. Product overview 23