Acer Aspire SA80 Aspire SA80 and Power S280 Service Guide - Page 48

Drive A Parameter Drive B Floppy 3 Mode Support Video Halt On Base Memory Extended Memory Total Memory Description Options Allows you to configure your floppy drive A. None 360 KB, 5.25-inch 1.2 MB, 5.25-inch 720 KB, 3.5-inch 1.44M, 3.5 - inch 2.88 MB, 3.5-inch Allows you to configure your floppy drive B. None 360 KB, 5.25-inch 1.2 MB, 5.25-inch 720 KB, 3.5-inch 1.44M, 3.5 - inch 2.88 MB, 3.5-inch Floppy 3 mode refers to a 3.5-inch diskette with a capacity of 1.2 MB. Floppy 3 mode is sometimes used in Japan. Disabled This item specifies the type of video card in use. The default setting is VGA/EGA. Since current PCs use VGA only, this function is almost useless and may be disregarded in the future. VGA/EGA CGA40 CGA80 Mono This parameter enables you to control the system stops in case of Power On Self Test errors (POST). All Errors No Errors All, but Keyboard All, but Diskette All, by Disk/Key Refers to the option of memory that is available to standard DOS programs. DOS systems have an address space od 1MB, but the top 384KB (called high memory) is reserved for system use. This leaves 640 KB of conventional memory. Everything above 1MB is either extended or extended memory. The BIOS POST will determine the amount of base (or conventional) memory installed in the sytem. Memory above and beyond the standard 1MB of base memory that DOS supports. Extended memory is only available in PCs with an Intel 80286 or later microprocessor. Extended memory is not configured in any special manner and is therefore unavailable to most DOS programs. However, MS Windows and OS/2 can use extended memory. The BIOS determines how much extended memory is present during the POST. Total based and extended memory, and I/O ROM total memory of the system. 384KB available to the system. 40 Chapter 2