Abit AT7 User Manual page 47

Introducing the BIOS
" Output Delay Value:
This item allows you to adjust the data output strobe delay time of memory. You can key in the HEX
number into this section. The minimum number is 0000, and maximum number is 03FF.
MD Drive Strength:
Four options are available: Auto ( Low ( Medium ( High. The default setting is Auto. This item can
adjust the drive strength for data sent to DDR SDRAM. This will depend on your DDR SDRAM
specification and numbers to set. More DDR SDRAM DIMM installed, you may set it to High.
Command Drive Strength:
Four options are available: Auto ( Low ( Medium ( High. The default setting is Auto. This item can
adjust the drive strength for command sent to DDR SDRAM. This will depend on your DDR SDRAM
specification and numbers to set. More DDR SDRAM DIMM installed, you may set it to High.
Rx9F[7]:
Two options are available: Disabled or Enabled. The default setting is Disabled. This item can improve
your system performance.
DRAM Queue Depth:
Three options are available: 2 Level ( 4 Level ( 3 level. The default setting is 4 Level. This item sets
DRAM queue depth to accommodate maximum memory throughput.
DRAM Command Rate:
Two options are available: 2T Command or 1T Command. The default setting is 2T Command. When the
host (northbridge) locates the desired memory address, it then processes the wait state of commands. Set
it to 2T Command for system compatibility or to 1T Command for system performance.
DCLK Feedback Delay:
Eight options are available: 0 ps ( 120 ps ( 240 ps ( 360 ps ( 480 ps ( 600 ps ( 720 ps ( 840 ps.
The default setting is 840 ps. The northbridge via DCLK feedback signal to sense the DRAM clock
timing of DRAM module. This item will effect the DRAM module's stability, we suggestion you set to 0.
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User's Manual