Technical Information 1-9
The BIOS programs execute the Power-On Self-Test, initialize processor controllers, and
interact with the display, diskette drives, hard disk drives, communication devices, and
peripherals. The system BIOS also contains the Setup utility. The POST copies the ROM
BIOS into RAM (shadowing) for maximum performance.
The Flash ROM allows the system and video BIOS to be upgraded with the BIOS Update
utility, without having to physically remove the ROM (see Section 2 for further information
on the BIOS Update utility). The Flash ROM supports the reprogramming of the system
BIOS and the video BIOS.
The system memory map is shown in Table 1-3.
Table 1-3 System Memory Map
Memory Space
Size
Function
100000-10000000
256 MB
Extended memory
F0000-FFFFF
64 KB
PTL system BIOS
EC000-EFFFF
16 KB
Reserved for BIOS
EA000-EBFFF
8 KB
ECSD (Plug and Play configuration and DMI)
E9000-E9FFF
4 KB
Reserved for BIOS
E8000-E8FFF
4 KB
OEM logo or Scan User Flash
E4000-E7FFF
32 KB
Reserved for BIOS (currently available as UMB)
E0000-E3FFF
96 KB
USB buffer area
C8000-D7FFF
160 KB
Available HI DOS memory (open to ISA and PCI bus)
A0000-C7FFF
1 KB
Video memory and BIOS
9F800-9FFFF
127 KB
Extended BIOS data (moveable by memory manager
software)
80000-9F7FF
126 KB
Extended conventional memory
00000-7FFFF
512 KB
Conventional memory
Содержание POWERMATE ENTERPRISE NETPC - SERVICE
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