Lenovo ThinkSystem ST550 7X09 Maintenance Manual page 28

7 VGA connector
Used to attach a VGA-compatible video device, such as a VGA monitor.
8 NMI button
Press this button to force a nonmaskable interrupt (NMI) to the processor. By this way, you can blue screen
the server and take a memory dump. You might have to use a pen or the end of a straightened paper clip to
press the button.
9 Serial-port-module slot
Used to install a serial port module. The serial port module is available on some models. For instructions on
how to install the serial port module, see "Install the serial port module" on page 125.
10 11 12 13 14 15 PCIe slots
Your server has six PCIe slots on the system board for you to install appropriate PCIe adapters. For
information about the PCIe slots, see "Specifications" on page 3.
Rear view of server models with two hot-swap power supplies
Figure 8. Rear view of server models with two hot-swap power supplies
Table 5. Components on the rear of server models with two hot-swap power supplies
Callout
1
Power supply 1
3
USB 2.0 connectors (2)
5
XClarity Controller network connector
7
Ethernet connectors (2)
9
NMI button
11
PCIe slot 1
20
ThinkSystem ST550 Maintenance Manual
Callout
2
Power supply 2 (available on some models or available
as an option)
4
USB 3.0 connectors (2)
6
USB 2.0 connectors (2)
8
VGA connector
10
Serial-port-module slot
12
PCIe slot 2