2-16 Dell OptiPlex GX1 and GX1p Mini Tower Managed PC Systems Reference and Installation GuideWith Auto (the default option) selected, the system turns off the built-in diskette drivecontroller when necessary to accommodate a controller card installed in an expansionslot.With Write Protect selected, nothing can be written to diskette drives and tape drivesusing the system’s built-in diskette drive controller. (The system can still read from thedrives.) When this option is selected, the Auto option (whereby the system turns offthe built-in diskette drive controller as necessary) is also in effect.Selecting Off turns off the built-in diskette/tape drive controller; this option is used pri-marily for troubleshooting purposes.6SHDNHUSpeaker determines whether the on-board speaker is On (the default) or Off. Achange to this option takes effect immediately (rebooting the system is not required).6\VWHP'DWD2SWLRQVThe following options, which are not selectable, display information about the system.The microprocessor type is also listed in the System Data box.á Level 2 Cache displays the size of the integrated cache (512 kilobytes [KB]).á System Memory indicates the entire amount of installed memory detected inyour system, except for memory on Expanded Memory Specification (EMS)expansion cards. After adding memory, check this option to confirm that the newmemory is installed correctly and is recognized by the system.á Video Memory displays the amount of video memory detected in your system.á Service Tag displays the system’s five-character service tag number, which wasprogrammed into nonvolatile random-access memory (NVRAM) by Dell duringthe manufacturing process. Refer to this number during technical assistance orservice calls. The service tag number is also accessed by certain Dell supportsoftware, including the diagnostics software.á Asset Tag displays the customer-programmable asset tag number for the systemif an asset tag number has been assigned. You can use the Asset Tag utility,which is included with your software support utilities, to enter an asset tag num-ber up to ten characters long into NVRAM. For information on using the utility,see “Using Drivers and Utilities” in your onlineSystem User’s Guide.8VLQJWKH6\VWHP3DVVZRUG)HDWXUH&$87,217KHSDVVZRUGIHDWXUHVSURYLGHDEDVLFOHYHORIVHFXULW\IRUWKHGDWDRQ\RXUV\VWHP+RZHYHUWKH\DUHQRWIRROSURRI,I\RXUGDWDUHTXLUHVPRUHVHFXULW\LWLV\RXUUHVSRQVLELOLW\WRREWDLQDQGXVHDGGLWLRQDOIRUPVRISURWHFWLRQVXFKDVGDWDHQFU\SWLRQSURJUDPV