Introducing the BIOS
User’s Manual
4-13
System BIOS Cacheable:
Two options are available: Disabled or Enabled. The default setting is
Enabled
. Select
Enabled
if you
want to improve BIOS performance under DOS environment.
C000, 32K Shadow:
Three options are available: Disabled Enabled Cached. The default setting is
Cached
. This option
is used to define whether the BIOS on the video card uses the shadow feature or not. You should set this
option to
Cached
, otherwise the display performance of the system will greatly decrease.
Shadowing address ranges:
This option allows you to decide if the ROM BIOS area of an interface card at a specific address uses the
shadow feature or not. If you have no interface card using this memory block, don’t enable this option.
You have six address ranges you can select:
C8000, 16K Shadow, CC00, 16K Shadow, D000, 16K Shadow, D400, 16K Shadow, D800, 16K Shadow,
DC00, 16K Shadow.
Computer Knowledge: SHADOW
What is the SHADOW? The BIOS of standard video or interface cards is stored in ROM, and it is
often very slow. With the Shadow feature, the CPU reads the BIOS on the VGA card and copies it into
RAM. When the CPU runs this BIOS, the operation is speeded up.
Summary of Contents for SR7-8X
Page 2: ......
Page 82: ...Chapter 4 SR7 8X 4 34 ...
Page 92: ...Appendix C SR7 8X C 4 ...
Page 102: ...Appendix F SR7 8X F 6 ...
Page 114: ...Appendix I SR7 8X I 4 ...