3Com CS/2500 manual Hardware Interrupt

1-4 CHAPTER 1: OVERVIEW

Hardware
interrupt	Air intake
switch

CS/2600

3Com

Diskette drive (CS/2600 only)

LED indicators

Reset switch

Transceiver connector

Printer port

Power supply module

	Serial ports
	Air exhaust
	Figure 1-2 CS/2500 Series Enclosure
Hardware Interrupt	The hardware interrupt switch is located on the server’s left side panel
Switch	close to the rear, as shown in Figure 1-2. The switch is recessed behind a
	small round hole to protect it from being pressed unintentionally.
	Pressing this switch generates a nonmaskable interrupt (NMI), aborting
	application software, disabling all ports except the console port, and
	passing control to the monitor utility. For information on the monitor
	utility, refer to Chapter 4, “Configuration,” and Appendix C, “Monitor
	Utility.”
	If the server crashes or stops working entirely, you may need to use the
	hardware interrupt switch to reboot or to perform a memory dump. For
	more information concerning memory dumps, refer to Chapter 6,
	“Troubleshooting.”