Contec SPI-8451-LLVA User Manual

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8. BIOS Setup 
 
 
 
SPI-8451-LLVA, SPI-8452-LLVA, SPI-8451-LVA 
87 
Description 
Choice 
Video BIOS Cacheable 
Selecting Enabled allows caching of the video BIOS 
ROM at C0000h to CBFFFh, resulting in better 
video performance.    However, if any program writes 
to this memory area, a system error may result. 
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. 
Delay 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. 
Delay Prior to Thermal 
Select the interval to setup the delay timer for CPU 
Thermal-Throttling. 
AGP Aperture Size (MB) 
Select the size of the Accelerated Graphics Port 
(AGP) aperture.  The aperture is a portion of the 
PCI memory address range dedicated for graphics 
memory address space.    Host cycles that hit the 
aperture range are forwarded.    Host cycles that hit 
the aperture range are forwarded to the AGP 
without any translation. 
On-Chip VGA setting