DFI LANParty Jr. GF9400 T2RS User Manual page 85

tRP
This field is used to select the row precharge time, precharge to
active or auto-refresh of the same bank.
tRAS
This field is used to select the minimum RAS# active time.
Command Per Clock (CMD)
This field is used to select the command timing setting (per clock
unit).
tRRD
This field is used to select the row to row delay time of different
banks.
tRC
This field is used to select the RAS# to RAS# or auto refresh time of
the same bank.
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.
tWTR
The options are Auto, 1 to 15.
tREF
This field is used to select the number of clock cycles between each
refresh.
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BIOS Setup
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