Auto Configuration - Abit LM6E Pentium II User Manual

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Auto Configuration:

Two options are available: Enabled or Disabled, the default setting is
Enabled. The DRAM and cache related to timing are set to 60ns by default
but also according to the CPU type and clock. If you choose the Disabled
setting, then you can specify your own DRAM timing.
DRAM Speed Selection:
Two options are available: 60ns or 50ns. When you Enabled the Auto
Configuration setting, you can see this option. There are two DRAM
timing parameters that can be automatically set by the BIOS.
*
Items that have the "*" mark mean that you need to set the Auto
Configuration to Disabled, then you can manually adjust the star marked
item.
*MA Wait State:
Two options are available: Fast or Slow. You can use this option to
enable or disable one additional MA (DRAM Memory Address) wait state.
Which means, if you have heavy loading or lower speed DRAM, you should
set it to Fast.
*EDO RAS# To CAS# Delay:
Two options are available: 2 or 3. Because when DRAM is refreshed,
both rows and columns are address separately. You may set the wait
state between the RAS (Row Address Strobe) and CAS (Column Address
Strobe) signal.
*EDO RAS# Precharge Time:
You can specify the number of cycles it takes for the RAS to accumulate its
charge before the EDO DRAM refreshes. If insufficient time is chosen,
refresh may be incomplete and cause data lose.
*EDO DRAM Read Burst:
This option will let you to set the timing for burst mode reads from EDO
DRAM. You can think of this as a request from the CPU which needs
four separate parts to finish it. The first, provides the reading location
within the DRAM. The remaining three parts will delivery the actual data.
The lower the timing number the faster the system will address the memory.
Chapter 3