BIOS Setup Information
PEB-4700 User’s Manual
4-11
System BIOS Cacheable
Selecting “Enabled” allows caching of the system BIOS ROM at F0000h-FFFFFh,
resulting in better system performance. However, if any program writes to this
memory area, a system error may result.
The choice: Enabled, Disabled.
Video BIOS Cacheable
Select “Enabled” allows caching of the video BIOS, resulting in better system
performance. However, if any program writes to this memory area, a system error
may result.
The choice: Enabled, Disabled.
Memory Hole At 15M-16M
You can reserve this area of system memory for ISA adapter ROM. When this area is
reserved, it cannot be cached. The user information of peripherals that need to use
this area of system memory usually discusses their memory requirements.
The choice: Enabled, Disabled.
Delayed Transaction
The chipset has an embedded 32-bit posted write buffer to support delay transactions
cycles. Select “Enabled” to support compliance with PCI specification version 2.2.
The choice: Enabled, Disabled.
Delay Prior To Thermal
Select this item allows the delay prior to thermal time.
The choice: 4Min, 8Min, 16Min and 32Min.
AGP Aperture Size (MB)
This field determines the effective size of the Graphic Aperture used for a particular
GMCH configuration. It can be updated by the GMCH-specific BIOS configuration
sequence before the PCI standard bus enumeration sequence takes place. If it is not
updated then a default value will select an aperture of maximum size.
The choice: 4, 8, 16, 32, 64, 128 and 256.
