System Options, Page 1
Date Display
This item enables you to choose either the U.S. 12-hour or European 24-hour time display.
Memory
The memory category specifies the type and amount of memory and how you want
memory allocated in the computer.
Standard Memory
This item specifies the amount of memory to allocate to the main memory. Select the 640
KB value unless your application program specifically requires a different value.
Extended Memory
This item specifics the amount of memory to allocate to the processor's extended memory
system. Extended memory is directly addressed by application programs that use a high
memory manager or by IBM's OS/2TM operating system. EMS emulation drivers such as
EMM386 supplied by MS-DOS use this memory to emulate LIM 4.0 memory. Some MS-
DOS programs can use this memory directly. The factory default value is 3328 KB with
the standard 4 MB memory and 5376 KB with the optional 6 MB memory.
Shadow ROM
This item selects whether or not to use shadow ROM in the computer. If set to YES (128
KB), the BIOS (basic input/output system) is loaded into faster Extended RAM memory
when the computer boots. The BIOS and your application programs then operate much
faster. Select the YES (I 28 KB) setting unless your application program needs the 128
KB this feature uses. The factory default is YES.
4-8 Customizing Your Computer