Intel D845EPI Intel Desktop Board D845EPI Product Guide English - Page 67

Table 24., Chipset Configuration Submenu, Using the BIOS Setup Program, Feature, Options, Description

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Using the BIOS Setup Program Table 24. Chipset Configuration Submenu (continued) Feature Options Description SDRAM Timing Control • Auto (default) • Manual - Aggressive • Manual - User Defined Auto allows timings to be programmed according to the memory detected. Manual - Aggressive selects the most aggressive user defined timings. Manual - User Defined allows manual override of detected SDRAM settings. SDRAM RAS Act. To Pre. • 7 Selects length of time from read to pre-change. • 6 • 5 • Auto (default) SDRAM CAS# Latency • 3 • 2 Selects the number of clock cycles required to address a column in memory. • Auto (default) SDRAM RAS# to CAS# • 3 delay • 2 Selects the number of clock cycles between addressing a row and addressing a column. • Auto (default) SDRAM RAS# Precharge • 3 • 2 Selects the length of time required before accessing a new row. • Auto (default) 67

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Using the BIOS Setup Program
67
Table 24.
Chipset Configuration Submenu
(continued)
Feature
Options
Description
SDRAM Timing Control
•
Auto (default)
•
Manual
–
Aggressive
•
Manual
–
User Defined
Auto
allows timings to be programmed according
to the memory detected.
Manual – Aggressive
selects the most aggressive
user defined timings.
Manual
–
User Defined
allows manual override of
detected SDRAM settings.
SDRAM RAS Act. To Pre.
•
7
•
6
•
5
•
Auto (default)
Selects length of time from read to pre-change.
SDRAM CAS# Latency
•
3
•
2
•
Auto (default)
Selects the number of clock cycles required to
address a column in memory.
SDRAM RAS# to CAS#
delay
•
3
•
2
•
Auto (default)
Selects the number of clock cycles between
addressing a row and addressing a column.
SDRAM RAS# Precharge
•
3
•
2
•
Auto (default)
Selects the length of time required before
accessing a new row.