ECS 965PLT-A, Руководство пользователя, Страница: 39 / 50

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Using BIOS
f
Allows override of
detected memory
frequency value.
Chipset Configuration (Press Enter)
Scroll to this item and press <Enter> to view the following screen:
Advanced
InsydeH20 Setup Utility
System Memory Frequency (Auto)
This item sets the system memory frequency.
Dram Timing Selectable (default)
Enables you to select the CAS latency time in HCLKs of 2, 2.5, or 3. The value is set at the
factory depending on the DRAM installed. Do not change the values in this field unless you
change specifications of the installed DRAM or the installed CPU.
RAM CAS3# Latency (4)
This item controls the timing delay (in clock cycles) before the DRAM starts a read
command after receiving it.
RAM RAS Act. to Pre. (11)
This precharge time is the number of cycles it takes for DRAM to accumulate its charge
before refresh.
RAM RAS# to CAS# Delay (04)
This field lets you insert a timing delay between the CAS and RAS strobe signals, used when
DRAM is written to, read from, or refreshed. Disabled gives faster performance; and En-
abled gives more stable performance.
RAM RAS# Precharge (04)
Select the number of CPU clocks allocated for the Row Address Strobe (RAS#) signal to
accumulate its charge before the DRAM is refreshed. If insufficient time is allowed, refresh
may be incomplete and data lost.
Refresh Cycle Time (20)
This item defines the RAM refresh cycle time.
Refresh Mode Select (7.8 us)
This item defines the RAM refresh mode.
Select Boot Device
Select Screen
Select Item
Select
f
SubMenu
Setup Defaults
Save and Exit
Exit
+ -
< >
qr
Enter
F9 =
F10 =
ESC =
Press <Esc> to return to the Advanced Features page.
Chipset Configuration
Setup Warning:
Setting items on this screen to incorrect values May
cause your system to malfunction!
System Memory Frequency <Auto>
Dram Timing Selectable <Default>
RAM CAS# Latency <4>
RAM RAS Act. to Pre. <11>
RAM RAS# to CAS# delay <04>
Refresh RAS# Precharge <04>
Refresh Cycle Time <20>
Refresh Mode Select <7.8 us>