ASRock P4i45E R3.0 User Manual - Page 24

SDRAM CAS Latency

Page 24 highlights

Chipset Configuration: Advanced AMIBIOS SETUP UTILITY - VERSION 3.31a Chipset Configuration [ Setup Help ] AGP Aperture Size ICH Delayed Transaction USB Controller USB Device Legacy Support CPU Thermal Throttling DRAM Write Throttling SDRAM CAS Latency ******** DRAM Timing ******** Configure SDRAM Timing by SPD SDRAM RAS# Precharge SDRAM RAS# to CAS# Delay 64MB Disabled Enabled Disabled Disabled Disabled Auto Disabled 3 Clocks 3 Clocks to select the size of mapped memory for graphics data. F1:Help Esc:Previous Menu :Select Item +/-:Change Values Enter:Select Sub-Menu F9:Setup Defaults F10:Save & Exit AGP Aperture Size: It refers to a section of the PCI memory address range used for graphics memory. We recommend that you leave this field at the default value unless your AGP card requires other sizes. ICH Delayed Transaction: Select [Enabled] will enable delayed transactions for internal register, FWH, and LPC interface accesses. USB Controller: Use this to enable or disable the use of USB controller. USB Device Legacy Support: Use this to enable or disable support to emulate legacy I/O devices such as mouse, keyboard,... etc. CPU Thermal Throttling: Select [Enabled] will enable P4 thermal control circuit to keep CPU from overheated. DRAM Write Throttling: Select [Enabled] will reduce the temperature of North Bridge and DRAM. However, it will decrease the memory writing throughput. SDRAM CAS Latency: This parameter controls the latency between the read command and the time the data available. 24

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Chipset Configuration:
AGP Aperture Size:
It refers to a section of the PCI memory address range used for graphics
memory.
We recommend that you leave this field at the default value
unless your AGP card requires other sizes.
ICH Delayed Transaction:
Select [Enabled] will enable delayed transactions for internal register, FWH,
and LPC interface accesses.
USB Controller:
Use this to enable or disable the use of USB controller.
USB Device Legacy Support:
Use this to enable or disable support to emulate legacy I/O devices such as
mouse, keyboard,... etc.
CPU Thermal Throttling:
Select [Enabled] will enable P4 thermal control circuit to keep CPU from
overheated.
DRAM Write Throttling:
Select [Enabled] will reduce the temperature of North Bridge and DRAM.
However, it will decrease the memory writing throughput.
SDRAM CAS Latency:
This parameter controls the latency between the read command and the
time the data available.
AMIBIOS SETUP UTILITY - VERSION 3.31a
Advanced
AGP Aperture Size
ICH Delayed Transaction
USB Controller
USB Device Legacy Support
CPU Thermal Throttling
DRAM Write Throttling
******** DRAM Timing ********
Configure SDRAM Timing by SPD
SDRAM RAS# Precharge
SDRAM RAS# to CAS# Delay
SDRAM
CAS
Latency
[
Setup Help
]
F1:Help
Esc:Previous Menu
F9:Setup Defaults
F10:Save & Exit
+/-:Change Values
Enter:Select
Sub-Menu
:Select Item
Chipset Configuration
Disabled
Enabled
Disabled
Disabled
Disabled
Auto
Disabled
3 Clocks
3 Clocks
<Enter> to select the
size of mapped memory
for graphics data.
64MB