Chapter
2
BIOS
Setup
2-
19
AGP Aperture Size (MB)
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 Choice : 4M, 8M, 16M, 32M, 64M, 128M, 256M.
SDRAM RAS-to-CAS Delay
This field lets you insert a timing delay between the CAS and RAS strobe
signals, used when DRAM is written to, read form, or refreshed. Fast
gives faster performance; and Slow gives more stable performance. This
field applies only when synchronous DRAM is installed in the system.
SDRAM RAS Precharge Time
If an insufficient number of cycles is allowed for the RAS accumulate its
charge before DRAM refresh, the refresh may be incomplete and the
DRAM may fail to retain data. Fast gives faster performance; and Slow
gives more stable performance. This field applies only when synchronous
DRAM is installed in the system.
SDRAM CAS latency Time
When synchronous DRAM is installed, the number of clock cycles of
CAS latency depends on the DRAM timing. Do not restet this field form
the default value specified by the system designer.
CPU Host Clock
The setting are Hardware, 66MHz, 68MHz, 75MHz.
Hardware (default)
