Abit KR7A, User Manual

Page: 44 / 104

Chapter 3
KR7A/KR7A-RAID
3-16
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Input Delay Value:
This item allows you to adjust the data input 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.
DDR DQS Output Delay:
Two options are available: Auto or Manual. The default setting is Auto . If you set to “Manual”, then the
next item will be available.
"
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.
DRAM Queue Depth:
Three options are available: 2 Level
)
3 Level
)
4 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 0 . 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 .