MSI Neo4 User Guide - Page 53
Read to Write delay Trwt
UPC - 816909007442
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MS-7125 ATX Mainboard 3-12 Row to Row delay (Trrd) When the Timing Mode is set to [Manual], the field is adjustable. Specifies the active-to-active delay of different banks. Available settings: [Auto], [2T], [3T], [4T]. Write recovery time (Twr) When the Timing Mode is set to [Manual], the field is adjustable. It specifies the amount of delay (in clock cycles) that must elapse after the completion of a valid write operation, before an active bank can be precharged. This delay is required to guarantee that data in the write buffers can be written to the memory cells before precharge occurs. Available settings: [Auto], [2T], [3T]. Write to Read delay (Twtr) When the Timing Mode is set to [Manual], the field is adjustable. This item controls the Write Data In to Read Command Delay memory timing. This constitutes the minimum number of clock cycles that must occur between the last valid write operation and the next read command to the same internal bank of the DDR device. Available settings: [Auto], [1T], [2T]. Read to Write delay (Trwt) When the Timing Mode is set to [Manual], the field is adjustable. This is not a DRAM-specified timing parameter, but must be considered due to routing latencies on the clock forwarded bus. It is counted from the first address bus slot that was not associated with part of the read burst. Available settings: [Auto], [1T], [2T], [3T], [4T], [5T], [6T]. Refresh period (Tref) When the Timing Mode is set to [Manual], the field is adjustable. Specifies the refresh rate of the DIMM requiring the most frequent refresh. Available settings: [Auto], [1x1552], [1x2064], [1x2592], [1x3120], [1x3632], [1x4128], [1x4672], [2x1552], [2x2064], [2x2592], [2x3120], [2x3632], [2x4128], [2x4672], [4x1552], [4x2064], [4x2592], [4x3120], [4x3632], [4x4128], [4x4672], [128]. User Config mode This field has the capacity to automatically detect all of the following 4 fields default value.. If you set this field to [Manual], the following fields will be selectable. The settings are: [Auto], [Manual]. Bottom of 32-bit [ 31:24] IO When the User Config mode is set to [Manual], the field is adjustable. This field specifies the memory which could be remapped to another address higher than 00E0. (This item only activities in 64-bit OS) The settings are: [0000~00E0]. 1T/ 2T Memory Timing When the User Config mode is set to [Manual], the field is adjustable. This field controls the SDRAM command rate. Selecting [1T] makes SDRAM signal controller to run at 1T (T=clock cycles) rate. Selecting [2T] makes SDRAM signal controller run at 2T rate. Setting options: [1T], [2T].