protech ProX-1640, Руководство пользователя, Страница: 64 / 113

Chapter 4 Award BIOS Setup
Prox-1640 USER
′
S MANUAL
Page: 4-13
MEMORY HOLE AT 15M-16M:
In order to improve performance, certain space in memory can be reserved
for ISA cards. This memory must be mapped into the memory space below
16MB.
CPU LATENCY TIMER:
When enabled this item, the CPU cycle will only be deferred after it has been
held in a “Snoop Stall” for 31 clocks and another ADS# has arrived. When
disabled, the CPU cycle will be deferred immediately after the GMCH
receives another ADS#.
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 2.1.
AGP GRAPHIC APERTURE SIZE:
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.
DISPLAY CACHE FREQUENCY:
You can use this item to select the frequency of the display cache.
POWER SUPPLY TYPE:
This allows you to select the power supply type.
ON-CHIP VIDEO WINDOW SIZE:
Select the on-chip video window size for VGA drive use.
CAS# LATENCY:
Select the local memory clock periods.
PAGING MODE CONTROL:
Select the paging mode control.