viii3.3 Advanced System Configuration...........................................................................3-53.3.1 Internal Cache........................................................................................3-53.3.2 External Cache ......................................................................................3-53.3.3 Enhanced IDE Features .........................................................................3-53.3.4 Onboard Communication Ports ..............................................................3-63.3.5 Onboard USB.........................................................................................3-63.3.6 Reset PnP Resources ............................................................................3-73.4 Power Saving Options ..........................................................................................3-83.4.1 When Lid is Closed ................................................................................3-83.4.2 Suspend to Disk on Critical Battery ........................................................3-83.4.3 Display Always On .................................................................................3-83.4.4 Resume On Modem Rings .....................................................................3-83.4.5 Resume On Schedule ............................................................................3-93.5 System Security..................................................................................................3-103.5.1 Supervisor and User Passwords...........................................................3-103.5.2 Diskette Drive Access Control ..............................................................3-113.5.3 Hard Disk Drive Access Control ...........................................................3-113.5.4 Start Up Sequences .............................................................................3-113.5.5 Refresh New BIOS...............................................................................3-113.6 Reset To Default Settings ...................................................................................3-12Chapter 4 Disassembly and Unit Replacement4.1 General Information..............................................................................................4-14.1.1 Before You Begin...................................................................................4-14.1.2 Connector Types....................................................................................4-34.1.3 Disassembly Sequence ..........................................................................4-44.2 Removing the Module...........................................................................................4-64.3 Replacing the Hard Disk Drive ..............................................................................4-74.4 Replacing Memory................................................................................................4-84.5 Removing the Keyboard .....................................................................................4-104.6 Replacing the CPU .............................................................................................4-124.7 Removing the Display.........................................................................................4-134.8 Disassembling the Housing.................................................................................4-14