Abit ZH6 User Manual page 41

Introduction of the BIOS
Processor Number Feature:
This feature can let the program read the data inside your processor. This feature only works
with Intel ® Pentium ® III processors. When you install a Pentium
motherboard, and when your system boots-up then this item will show up in BIOS.
Two items will be available: Enabled and Disabled. When you choose Enabled, the specific
program can read your processor's serial number. When you choose Disabled it will not
allow the program to read your processor's serial number. The default setting is Disabled.
Video BIOS Shadow:
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 Enabled, 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-CBFFF Shadow, CC000-CFFFF Shadow, D0000-D3FFF Shadow, D4000-D7FFF
Shadow, D8000-DBFFF Shadow, DC000-DFFFF 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.
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® III processor into your
User's Manual