Zotac nForce 790i-Supreme, User Manual

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7
Installing Drivrs and Software
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R to R Timing
the Read-to-Read time (tRDRD) is the number of clock cycles between the last
read and the subsequent READ command to the same physical bank. Adjustable
from 1 to 15.
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Row Cycle Time
The Row Cycle Time is the minimum time in cycles it take a row to complete
a full cycle. This can be determined by tRC=tRAS+tRP. If this value is set too
short, it can cause corruption of data. If this value is set too high, it causes a loss
in performance but an increase in stability. Adjustable from 1 to 63 cycles
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W to R Command Delay
The Write-to-Read (tWRD) command delay is the amount of cycles required
between a valid write command and the next read command. A lower cycle
time results in better performance but is can instability. Adjustable from 0 to 6
cycles.
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W to W Timing
The Write-to-Write (tWRWR) timing is the number of clock cycles between the
last write and the subsequent Write command to the same physical bank.
Adjustable from 2 to 15 cycles.
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CAS Latency
The CAS Latency (tCL) is the time (in number of clock cycles) that elapses after
the memory controller sends a request to read a memory location and before the
data is sent to the module’s output pins. The value shown cannot be changed.
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Clock Drive Strength
This value is filled in by the system and can not be changed by the user.
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Command Per Clock
The Command Per Clock (tCPC) sets the Command Rate for the memory
controller. The value shown cannot be changed
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Async Latency
This value is filled in by the system and can not be changed by the user.