Owners Manual

System Overview
Figure 4. Front and Back View
Table 4. Features and indicators of Precision 7910.
Item Indicator, Button, or
Connector
Icon Description
1 Power-on indicator, power
button
The power-on indicator lights when the system power is on. The
power button controls the power supply output to the system.
NOTE: On ACPI-compliant operating systems, turning
off the system using the power button causes the
system to perform a graceful shutdown before power to
the system is turned off.
2 NMI button
Used to troubleshoot software and device driver errors when
running certain operating systems. This button can be pressed
using the end of a paper clip.
Use this button only if directed to do so by qualified support
personnel or by the operating system documentation.
3 System identification button The identification buttons on the front and back panels can be
used to locate a particular system within a rack. When one of these
buttons is pressed, the LCD panel on the front and the system
status indicator on the back flashes until one of the buttons is
pressed again.
Press to toggle the system ID on and off.
If the system stops responding during POST, press and hold the
system ID button for more than five seconds to enter BIOS
progress mode.
14 Installing and removing system components