Magic-Pro Computer MP-6VIP-D User Manual page 21

MAGIC-PRO MP-6VIP-D
20
This item allows you to select the value in this field, depend-
ing on whether the board has paged DRAMs or EDO
(extended data output) DRAMs.
The choice:
EDO 50ns,
EDO 60ns,
Slow,
Medium,
Fast,
Turbo
You can select CAS latency time in HCLKs of 2/2 or 3/3. The
system board designer should have set the values in this field,
depending on the DRAM installed. Do not change the values
in this field unless you change specifications of the installed
DRAM or the installed CPU.
The setting of this item must depend on the spec of PC100/
PC133. For example, if user chooses HCLK + 33M, that
means not only the motherboard but also the SDRAM needs
to comply with PC-133 spec.
Choice: Host CLK(default), HCLK-33M or HCLK+33M.
Choose Enabled or Disabled (default). In order to improve
performance, certain space in memory can be reserved for
ISA cards. This memory must be mapped into the memory’s
space below 16MB.
DRAM optimization feature: If a memory read is addressed to
a location whose latest write is being held in a buffer before
being written to memory, the read is satisfied through the buffer
contents, and the read is not sent to the DRAM.
The choice:
Enabled,
Disabled
When disabled, CPU bus will be occupied during the entire
PCI operation period.
The choice:
Enabled,
Disabled
Choose Enabled or Disabled (default). When Enabled, the
access to the system BIOS ROM addressed at F0000H-
FFFFFH is cached.