6. BIOS Configuration
M81E / M81DC2 / M812-FX Series User’s Manual
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6.3 Advanced Chipset Features
Selecting
“Advanced Chipset Features”
on the main program screen display this menu :
To access the Advanced Chipset Features screen that define critical timing parameters
of the motherboard components. Generally, you should leave the item on this feature
at their default values unless you are very familiar with the technical specification of your
system hardware. If you change the values incorrectly you may introduce fatal and
instability into your system. Highlight this option on the main menu screen and press
<Enter> key.
6.3.1 SDRAM CAS Latency Time
SDRAM RAS-to-CAS Delay
SDRAM RAS Precharge Time
These items set the timing of the Column Address Strobe and Row Address Strobe
for SDRAM. We recommend that you leave these items at the default. Slower rate
[3] may be required for slower SDRAMs or more than 2 banks of SDRAM DIMMs
are installed.
The available options for SDRAM CAS Latency Time are : [Auto] [2] [3].
The available options for SDRAM RAS-to-CAS Delay and SDRAM RAS Precharge
Time are : [3] [2].
6.3.2 SDRAM Cycle Time Tras/Trc
This setting controls the number of SDRAM clock used per access cycle.
The available options for SDRAM Cycle Time Tras/Trc are : [6/8] [5/7].
