Advanced Chipset Features - Epson MR Series Technical Reference Manual

Advanced Chipset Features

The setup items related to the chipset are as follows.
Item
SDRAM CAS Latency Time
System BIOS Cacheable
Video BIOS Cacheable
CPU Latency Timer
Delayed Transaction
CAS# Latency
Paging Mode Control
RAS-to-CAS Override
RAS# Timing
RAS# Precharge Timing
Note:
1. Although each of the default values of SDRAM CAS Latency Time is "3," if a message stating that operations
can be performed with the setting of "2" appears in POST processing, it is possible to improve performance by
changing each of the values to "2."
2. For SDRAM Cycle Time Tras/Trc, SDRAM RAS-to-CAS Delay and SDRAM RAS Precharge Time, the settings of
both Fail-Safe and Optimized are fixed as "Auto"; they are display only items and cannot be selected.
Rev. I
Options
3
2
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
2
3
Close
Open
by CAS# LT
Override (2)
Slow
Fast
Slow
Fast
MR series Technical Reference Manual
Fail-Safe default
3
Disabled
Disabled
Disabled
Enabled
3
Open
by CAS# LT
Fast
Fast
Optimized default
3
Disabled
Disabled
Disabled
Enabled
3
Open
by CAS# LT
Fast
Fast
BIOS Functions 5-25