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2 Ambient temperature limit LED
When this LED is lit in amber, it indicates that the ambient temperature is below 7°C (44.6°F) or over 40°C
(104°F), which is not proper for server operation.
3 System fan error LED
When the system fan error LED is lit in amber, it indicates that one or more system fans are operating
slowly or have failed. To identify the failing system fan(s), check the status LEDs on the system board.
See “System board LEDs” on page 39
.
4 Memory module status LED
When the memory module status LED is lit in amber, it indicates that one or more memory modules are
overheated.
5 Microprocessor status LED (also known as CPU error LED)
When the microprocessor status LED is lit in amber, it indicates that one or more microprocessors are
overheated.
Rear view of the server
This topic provides information to help you locate the connectors and components on the rear of your server.
The following illustration shows the rear view of the server with two hot-swap power supplies.
1
0
MGMT
ID
8
9
2
Figure 10. Rear view of the server
1 Hot-swap redundant power supply 2 (available in
some models)
7 VGA DB-15 connector
2 Hot-swap redundant power supply 1
8 Ethernet connector 1 (RJ-45)
3 Low-prole PCI Express card slot 9 Ethernet connector 0 for system management (RJ-45)
4 PCI Express card slot 10 Serial port
5 Ethernet connector 2 (RJ-45)
11 ID LED
6 USB connectors (4)
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 signicant 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.
20 ThinkServer RD330 User Guide