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BIOS Setup
Write Recovery Time (Twr)
This field is used to select the write recovery time when the DRAM
safely registers the last write data. This is the time from the last write
data to precharge.
Write to Read Delay (Twtr)
This field is used to select the write to read delay time. This is
measured from the rising edge of the last non-masked data strobe
to the rising edge of the next read command.
Read to Write Delay (Trwt)
This field is used to select the read to write delay time. Although this
is not a DRAM specified timing parameter, it is related to the routing
latencies on the clock forwarded bus. This is measured from the first
address bus slot which is not associated with part of the read burst.
Refresh Rate (Tref)
This field is used to select the refresh rate of the DIMM that
requires the most frequent refresh.
Write CAS Latency (Twcl)
This field is used to select the write CAS latency time.
DDR Output Driving
The default setting is Auto.
DDR DQ Drive Strength
This field is used to select a level of the DRAM drive strength.
User Config Mode
Auto
The BIOS will automatically detect the default settings
of the “Bottom of 32-bit [31:24] IO” to “Async
Latency Value” fields.
Manual
This option allows you to manually select settings in
the “Bottom of 32-bit [31:24] IO” to “Async Latency
Value” fields.
