1-6 Technical Information
Video BIOS is located between C0000h and C7FFFh. The system memory map in shown in
Table Section 1-3.
Table Section 1-3 System Memory Map
Memory Space Size Function
000000-07FFFF 512 KB Conventional base memory
080000-09FBFF 127 KB Extended conventional base memory
09FC00-09FFFF 1 KB Extended BIOS Data (movable by QEMM and 386 max)
0A0000-0BFFFF 128 KB On-board video memory
0C0000-0C7FFF 32 KB On-board video BIOS
0C8000-0E7FFF 128 KB Available high DOS memory (open to ISA and PCI bus)
0E8000-0ECFFF 20 KB Plug-n-Play ESCD data
0ED000-0EDFFF 4 KB Reserved for logo
0EE000-0EFFFF 8 MB Flash boot block (available for HIMEM)
0F0000-0FFFFF 64 KB System BIOS
100000- On-Board 130 MB Extended and/or Expanded system memory
Flash ROM supports the reprogramming of the system and built-in video BIOS. A jumper
on the system board is provided to prevent unauthorized changes to the BIOS. The factory
default for the jumper is set to enabled, allowing the BIOS to be flashed. See Section 2
Setup and Operation, for jumper information. If the BIOS upgrade is interrupted see Sec-
tion 4, Maintenance and Troubleshooting, for information on recovering the BIOS in the
event of a catastrophic failure has occurred.
Power Management
Each computer system incorporates power management features that lowers power con-
sumption when there is no activity detected from the keyboard, mouse, diskette drive, or
hard disk drive after a pre-defined period of time. As soon as activity is detected the system
resumes where it left off.
When Power Management is enabled the computer automatically activates power-saving
features and enters a sleep mode whenever inactivity is sensed. The computer's power-
saving functions are as follows.
n Reduces the CPU clock speed
The CPU, cache, and video clock speeds are reduced, putting the computer in
sleep mode.
To Next Page
Loading...
