Chipset Setup; Bit I/O Recovery; Dram Speed For Edo - American Megatrends Atlas PCI-II User Manual

Chipset Setup

Cache Module Type This option specifies the type of cache module
DRAM Speed for EDO If using EDO SIMMs for system memory,
The DRAM Speed for EDO
Mode options are only present if you have installed one bank
of EDO SIMMs and one bank of fast page mode SIMMs. If
only EDO SIMMs or only fast page mode SIMMs are
installed in both memory banks, only the relevant option is
DRAM Speed for Fast Page Mode
8 Bit I/O Recovery This option specifies the length of the delay that
52 Atlas PCI-II Motherboard User's Guide
installed on the motherboard. See pages
18 for additional information about installing the
cache module. Before selecting the cache module
type, disable the onboard SMT cache memory by
shorting Pins 2-3 of J30 on the motherboard.
The settings are None, Async, Burst, or Pipeline.
The Optimal default setting is
default setting is None.
specify the RAS access speed of the EDO SIMMs
installed in the motherboard. The settings are
or 70 ns. The default is 70 ns.
Important
and DRAM Speed for Fast Page
displayed in Chipset Setup.
for system memory,
of the Fast Page Mode SIMMs installed in the
motherboard. The settings are
default is 70 ns.
is added to the CPU cycle between consecutive 8-
bit I/O operations. The length of the delay is related
to the CPU type and frequency. The settings are
BCLK, 5 BCLK, 4 BCLK, or 3 BCLK. The Optimal
default setting is 3 BCLK. The Fail-Safe default
setting is 8 BCLK.
Async. The Fail-Safe
If using Fast Page Mode SIMMs
specify the RAS access speed
60 ns or 70 ns. The
16 through
60 ns
8
Cont'd