Dell OptiPlex GX1 Dell OptiPlex GX1 and NX1 Documentation Update - Page 8

'ULYHV3ULPDU\DQG6HFRQGDU\ System Setup reports hard-disk drives in one of two ways: ‡ Newer hard-disk drives and all hard-disk drives over 8 gigabytes (GB) are reported as an EIDE Drive, without details on type, cylinders, heads, cylinder numbers, and sectors. See Figure 1-1 for an example. ‡ Older hard-disk drives are reported with full details about type, cylinders, heads, cylinder numbers, sectors, and size. NOTE: For all Dell-installed hard-disk drives, set the appropriate Drive option to Auto. Use one of the following options if you have an older EIDE hard-disk drive not shipped with the system from Dell and with less than 528 megabytes (MB) in capacity: ‡ A specific drive-type number ‡ Usr1 or Usr2 For each drive, you can choose the seven parameters as a group by drive-type number or you can enter the parameters individually from the keyboard. A drive-type number specifies the parameters of a hard-disk drive, based on a table recorded in the system's basic input/output system (BIOS). NOTE: Operating systems that bypass the system BIOS may not obtain optimum hard-disk drive performance. If you choose the Usr1 or Usr2 option, you must supply the following parameters for the drive: ‡ Type is the drive-type number for the selected hard-disk drive (in this case, Usr1 or Usr2). ‡ Cyls is the number of logical cylinders. ‡ Hds indicates the number of logical heads in the drive. ‡ Pre (precompensation cylinder) is the cylinder number at which the electrical cur- rent for the drive head changes to compensate for differences in data density across the disk surface (this parameter has no effect for EIDE drives). ‡ Lz is the cylinder number that is used as the drive's landing zone for the heads when the drive is not in use. ‡ Sec is the number of logical sectors per track. ‡ Size (automatically calculated by the system) indicates the number of millions of bytes of storage provided by the drive. &KDVVLV,QWUXVLRQ Chassis Intrusion displays the status of the system chassis intrusion monitor and can be set to Enabled, Enabled-Silent, or Disabled. The default is Enabled. 1-6 Dell OptiPlex GX1 and NX1 Documentation Update