Frequency/Voltage Control - Shuttle FB95 User Manual

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Frequency/Voltage Control

Spread Spectrum
This item allows you to enable or disable the spread spectrum modula-
tion.
Ø The choice: Disabled or Enabled.
DRAM Timing Selectable
The value in this field depends on performance parameters of the installed
memory chips(DRAM). Don't change the value from the factory setting
unless you install new memory that has a different performance rating
than the original DRAMs.
Ø The choice: Manual or BySPD.
CAS Latency Time
When synchronous DRAM is installed, the number of clock cycles of
CAS latency depends on the DRAM timing. Don't change this field from
the default value specified by the system designer.
Ø The choice: 2, 2.5, or 3.
DRAM RAS# to CAS# Delay
This field lets you insert a timing delay between the CAS and RAS
strobe signals, and you can use it when DRAM is written to, read from,
or refreshed. Faster performance is gained in high speed, more stable
performance, in low speed. This field is applied only when synchro-
nous DRAM is installed in the system.
Ø The choice: Auto, 5, 4, 3 or 2.
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