User`s manual

User’s Manual 21
3-3. Advanced Chipset Features
This section allows you to configure the system based on the specific features of
the installed chipset. This chipset manages bus speeds and the access to the
system memory resources, such as DRAM and the external cache. It also
coordinates the communications with the PCI bus.
It must be stated that these
items should never be altered. The default settings have been chosen because they
provide the best operating conditions for your system. You might consider making
any changes only if you discover that the data has been lost while using your
system.
Item Available Options:
DRAM Clock/Drive Control
Press Enter
AGP & P2P Bridge Control
Press Enter
CPU & PCI Bus Control
Press Enter
Memory Hole Disabled
System BIOS Cacheable Enabled
Video RAM Cacheable Enabled
Init Display First PCI Slot
DRAM Clock/Drive Control
Item Available Options:
Current FSB Frequency By SPD
Current DRAM Frequency 100MHz
DRAM Clock By SPD
DRAM Timing Auto By SPD
SDRAM CAS Latency 2.5
Bank Interleave Enabled
Precharge to Active(Trp) 4T
Active to Precharge(Tras) 9T
Active to CMD(Trcd) 4T
REF to ACT/REF to REF(Trfc) 15T
ACT(0) to ACT(1) (TRRD) 3T
DRAM Command Rate 2T Command
․
DRAM Clock
This item allows you to set the speed of Direct Memory Access (DMA) at either
equal to or one-half of the SYSCLK (system clock signal) speed.
<Choice: By SPD, 100MHz, 133MHz, 166MHz, 200MHz>
22 The ENDAT-3400M System Board
․
DRAM Timing
The value in this field depends on performance parameters of the installed
memory chips (DRAM). Do not change the value from the factory setting unless
you install new memory that has a different performance rating than the original
DRAMs.
<Choice: Manual, Auto By SPD, Turbo, Ultra>
AGP & P2P Bridge Control
Item Available Options:
AGP Aperture Size 128M
AGP 3.0 Mode 8X
AGP Driving Control Auto
AGP Driving Value DA
AGP Fast Write Enabled
AGP Master 1 WS Write Disabled
AGP Master 1 WS Read Disabled
AGP 3.0 Calibration Cycle Disabled
VGA Share Memory Size 64M
Direct Frame Buffer Enabled
Select Display Device CRT
Panel Type 07
․
AGP Aperture Size (MB)
This function determines the amount of system memory that is given to the AGP
card. This is a dynamic memory allotment in that the AGP card will only use the
amount of memory that it needs. The remaining memory, which is not in use, will
be available for the system.
<Choice: 32MB, 64MB, 128MB, 256MB, 512MB, 1G>
․VGA Share Memory Size
This field is used to select the onboard VGA’s frame buffer size that is shared
from the system memory.
<Choice: Disabled, 16M, 32M, 64M>
․Select Display Device
This field is used to select the type of display to use when the system boots.
<Choice: CRT, LCD, CRT + LCD>