4-20AcerAltos 21000 System Guide4.6.6 System Boot DriveThis parameter allows you to specify the system search sequence.The selections are:• Drive A then C: The system checks drive A first. If there isa diskette in the drive, the system boots from drive A.Otherwise, it boots from drive C.• Drive C then A: The system checks drive C first. If there isa hard disk (drive C) installed, the system boots from drive C.Otherwise, it boots from drive A.• C: The system always boots from drive C.• A: The system always boots from drive A.4.6.7 Boot From IDE CD-ROMWhen set to Enabled, the system checks for a bootable CD in theIDE CD-ROM drive. If a CD is present, the system boots from theCD-ROM; otherwise, it boots from the drive specified in the SystemBoot Drive parameter. When set to Disabled, the system bootsfrom the drive specified in the System Boot Drive parameter.Note that the CD-ROM drive mentioned aboverefers to an IDE CD-ROM drive. When settingthe boot options for a SCSI CD-ROM drive, seesection 4.7.1 for details on SCSI device bootparameters.4.6.8 Single Processor MP TableEnabling this parameter allows BIOS to create a multiprocessor (MP)table for Windows NT use. In a single-processor system runningWindows NT, you may disable this parameter to enhance systemperformance. If you install another CPU for a dual (or multiprocessor)system, enable this parameter and then reinstall Windows NT.