Advance Chipset Features Setup; Figure 6-4: Advance Chipset Features Setup Screen - Advantech CompactPCI MIC-3000 Series User Manual

6.1.4 Advance Chipset Features Setup

The Advanced Chipset Features Setup option is used to change the values of the
chipset registers. These registers control most of the system options in the
computer. Choose the "ADVANCED CHIPSET FEATURES" from the Main Menu and
the following screen will appear.

Figure 6-4: Advance Chipset features setup screen

SDRAM RAS-to-CAS Delay
This field lets you insert a timing delay between the CAS and RAS strobe signals,
used when DRAM is written to, read from, or refreshed. Fast gives faster
performance; and Slow gives more stable performance. This field applies only when
synchronous DRAM is installed in the system. The settings are: 2 and 3.
SDRAM RAS Precharge Time
If an insufficient number of cycles is allowed for the RAS to accumulate its charge
before DRAM refresh, the refresh may be incomplete and the DRAM may fail to
retain data. Fast gives faster performance; and Slow gives more stable performance.
This field applies only when synchronous DRAM is installed in the system. The
settings are: 2 and 3.
SDRAM CAS Latency Time
When synchronous DRAM is installed, the number of clock cycles of CAS latency
depends on the DRAM timing. The settings are: 2 and 3.
System BIOS Cacheable
Selecting Enabled allows caching of the system BIOS ROM at F0000h-FFFFFh,
resulting in better system performance. However, if any program writes to this
MIC-3366 Series User Manual -- Page 36