Intel BONANZA S478 I875 ATX DDR BLKD875PBZLK Manual Do Utilizador
Códigos do produto
BLKD875PBZLK
Intel Desktop Board D875PBZ Technical Product Specification
112
Table 62. Chipset Configuration Submenu (continued)
Feature Options
Description
Extended Configuration
• Default (default)
• User Defined
• User Defined
Allows the setting of extended configuration options.
SDRAM Frequency
(Note 1)
• Auto (default)
• 266 MHz
• 333 MHz
• 266 MHz
• 333 MHz
(Note 2)
• 400 MHz
(Note 3)
Allows override of the detected memory frequency.
NOTE: If SDRAM Frequency is changed, you must
reboot for the change to take effect. After changing
this setting and rebooting, the System Memory
Speed parameter in the Main menu will reflect the
new value.
reboot for the change to take effect. After changing
this setting and rebooting, the System Memory
Speed parameter in the Main menu will reflect the
new value.
SDRAM Timing Control
(Note 1)
• Auto (default)
• Manual – Aggressive
• Manual – User Defined
• Manual – Aggressive
• Manual – User Defined
Auto = Timings will be programmed according to the
memory detected.
memory detected.
Manual – Aggressive = Selects most aggressive
user-defined timings.
user-defined timings.
Manual – User Defined = Allows manual override of
detected SDRAM settings.
detected SDRAM settings.
CPC Override
• Auto (default)
• Enabled
• Disabled
• Enabled
• Disabled
Controls the CPC/1n rule mode.
Enabled allows the DRAM controller to attempt chip
select assertions in two consecutive common clocks.
select assertions in two consecutive common clocks.
SDRAM RAS Active to
Precharge
Precharge
(Note 4)
• 8
• 7
• 6 (default)
• 5
• 7
• 6 (default)
• 5
Corresponds to tRAS.
SDRAM CAS# Latency
(Note 4)
• 2.0
• 2.5 (default)
• 3.0
• 2.5 (default)
• 3.0
Selects the number of clock cycles required to
address a column in memory.
address a column in memory.
SDRAM RAS# to CAS#
Delay
Delay
(Note 4)
• 4
• 3
• 2 (default)
• 3
• 2 (default)
Selects the number of clock cycles between
addressing a row and addressing a column.
addressing a row and addressing a column.
SDRAM RAS#
Precharge
Precharge
(Note 4)
• 4
• 3
• 2 (default)
• 3
• 2 (default)
Selects the length of time required before accessing
a new row.
a new row.
Notes:
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 option is displayed only if the installed processor has an 800 MHz system bus.
4.
This feature is displayed only if SDRAM Timing Control is set to Manual – User Defined.