AGP Graphics Aperture Size

Select the size of 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 to the AGP without any translation. The choices: 32M,

64M.

Display Cache Frequency

Display cache frequency will allow for the level the of the share memory provided by the Intel 815E chipset to be adjusted.

The settings are 100MHz and 133 MHz.

System Memory Frequency

Select the onboard display cache frequency. The settings are auto,

100MHz and 133MHz.

On-Chip Video Window Size

Select the on-chip video window size for VGA drive use.

The choices: 32MB, 64MB, Disabled

Initial Display Cache

Cas# Latency

Select the local memory clock period. The number of clock cycles of CAS# Latency depends on the Onboard Display Cache timing. The choice: 2,3

Paging Mode Control

Select the paging mode control. The choice: open,

close

RAS-to-CAS Override

This item allows you to insert a timing delay between the CAS and RAS strobe signals, used when Onboard display cache is written to, read from, or refreshed. During by CAS#LT, this will depend on the Onboard Display Cache CAS# Latency setting. During Override (2), RAS-to-CAS time = 2

Ras# Timing

This item controls RAS# active to Precharge, and refresh to RAS# active delay ( in local memory clock ). The choices: Fast, Slow

Ras# Precharge Timing

This item controls RAS# precharge ( in loca memory clocks). The choices: Fast, slow

60SBC-776 User Manual

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Image 69
Intel SBC-776 AGP Graphics Aperture Size, Display Cache Frequency, System Memory Frequency, On-Chip Video Window Size