Reset Push Button; Figure 2-8 Front Panel Leds - Silicon Graphics 1200 User Manual

2: Hardware Overview

Reset Push Button

14
Warning:
The SGI 1200 server continues to have AC power inside the chassis even
after the front power push button has been pressed to power down the SGI 1200
server. As long as the AC power cord is connected, the power supply supplies DC
power so that the motherboard can be controlled through the Emergency Management
Port (EMP) for remote management, fan usage and processor cooling. Factory
authorized service personnel must unplug the AC cord before opening the chassis for
service.
The reset push button connects to the motherboard. If the SGI 1200 server freezes during
use, pressing the reset button issues a hardware reset to the BIOS, and the operating
system reloads.
Caution: Pressing the reset button is the last resort for dealing with a non-responsive
server. Any work not saved to disk will be lost when the reset button is pressed. Pressing
the reset button can leave the operating system in an uncertain state, so try logging into
an alternate console to cancel a runaway process before you reset your system. Check
with your system administrator.
Front Panel LEDs
Figure 2-8
Blue AC power LED
Green disk activity LED
Green Ethernet activity LED
Amber global failure LED
007-4248-001