BIOS Setup Program
Table 53. Chipset Configuration Submenu (continued)
Feature
CPC Override
SDRAM Timing Control
(Note 1)
SDRAM RAS Active to Precharge (Note 3)
SDRAM CAS# Latency
(Note 3)
SDRAM RAS# to CAS#
Delay (Note 3)
SDRAM RAS#
Precharge (Note 3)
Notes:
Options
•Auto (default)
•Enabled
•Disabled
•Auto (default)
•Manual – Aggressive
•Manual – User Defined
•8
•7
•6 (default)
•5
•2.0
•2.5 (default)
•3.0
•4
•3 (default)
•2
•4
•3 (default)
•2
Description
Controls the CPC/1n rule mode.
Enabled allows the DRAM controller to attempt chip select assertions in two consecutive common clocks.
Auto = Timings will be programmed according to the memory detected.
Manual – Aggressive = Selects most aggressive
Manual – User Defined = Allows manual override of detected SDRAM settings.
Corresponds to tRAS.
Selects the number of clock cycles required to address a column in memory.
Selects the number of clock cycles between addressing a row and addressing a column.
Selects the length of time required before accessing a new row.
1.This feature is displayed only if Extended Configuration is set to User Defined.
2.This option is displayed only if the installed processor has a 533 MHz system bus.
3.This feature is displayed only if SDRAM Timing Control is set to Manual – User Defined.
93
