3.5.4 DRAM RAS# Precharge
When the DRAM
Timing Selectable
is set to [Manual], this
field
is
adjustable.
This setting controls
the number of cycles
for
Row Address
Strobe (RAS) to be allowed to precharge. If no sufficient time
is
allowed
for the
RAS to accumulate
its
charge before DRAM
refresh,
refreshing
may be incomplete and DRAM
may fail to retain data. This
item
applies
only when synchronous
DRAM
is installed in the system. Setting
options
are [2T] to [5T],
and
[Auto].
3.5.5 Precharge Delay (t RAS)
This item
allows
you to select the
value
in this
field, depending
on
whether the board has paged DRAMs
or EDO (extended data
output)
DRAMs.
The choices
are: “4”
to “15” and “Auto”.
3.5.6 System Memory Frequency
To adjust the
frequency of
memory. The choices are:
"533MHz",
"667MHz" and "Auto".
3.5.7 System BIOS Cacheable
Selecting “Enabled” allows caching
of the system BIOS ROM
at F0000h-
FFFFFh, resulting in better system
performance.
However, if any
pro-
gram writes data to
this
memory
area, a
system error
may occur. The
Choices are “Enabled”, and
“Disabled”.
3.5.8 Video BIOS Cacheable
Selecting “Enabled” allows caching
of the
video BIOS, resulting in
better
system performance. However, if
any program writes
to this memory area,
a system error
may occur. The choices are “Enabled”, and
“Dis- abled”.
3.5.9 Memory Hole At 15M-16M
Enabling this feature reserves
15 MB
to 16 MB memory address space for
ISA
expansion
cards that specifically require this
setting. This makes
memory
from 15 MB and up
unavailable to the
system.
Expansion
cards
can
only access
memory up
to 16 MB.
The default
setting is “Disabled”.
3.5.10 PCI-Express Root Port Func
PCI Express Port
1/2/3/4
The default setting
is “Auto.” The
choices
are “Enabled,” “Disabled,” and
“Auto.”
PCI-E Compliancy Mode
This allows the user to select
the
PCI-E compliant
mode.
The options are
[v1.0], and [v1.0a].