Dell 4100, 200, 180 service manual Front-Panel Features

reset button	power button and	diskette-drive access
	power-on indicator
		indicator (typical)

SCSI hard-disk drive	SCSI hard-disk drive	SCSI hard-disk drive
online indicator	fault indicator	activity indicator

Figure 1-2. Front-Panel Features

CAUTION: To avoid possible data or file structure corruptions, the front- panel reset button should be used only when restarting the system with a key combination fails. Before using the reset button to initiate a hardware reset, close any open application programs and files if possible. If you are using MS-DOS®, the system can be rebooted by pressing <Ctrl><Alt><Del>.

1-4 Dell PowerEdge 4100/180 and 4100/200 Systems Service Manual