Chapter 1: 7401-2xxx and 3xxx Product Overview 1-33Other Integrated Devices and IndicatorsHard Disk DriveA 2.5-inch IDE hard disk is available to support Windows NT. Thedrive is the standard type that is used by notebook PCs.Reset SwitchAs a last resort, the Reset Switch can be used to reboot the system if thesoftware reset port mechanisms fail. The switch is on the connectorrow at the bottom of the enclosure. Intentionally, it is not easilyaccessible, but can be operated without removing covers or usingspecial tools.16454Reset SwitchCaution: Except when testing software in a lab environment, alwaysdisconnect the AC power cord.Reset Procedure1. Gently press the Reset Switch and hold it in for at least fourseconds. The screen goes blank.2. Release the Reset Switch and then gently press it again. The systemreboots.Internal SpeakerThe Internal Speaker is connected to the PC speaker output of thesystem chipset, not to the audio subsystem. It is connected to theProcessor Board via a harness and mounted inside the Processor Boardenclosure.