NVIDIA nForce 590 SLI Technology Chipset Overclocking
DU-02451-001_v01
23
05/17/06
For DDR2-800 memory, use an even-numbered CPU multiplier of 10 and above:
Effective Memory Frequency = 400 MHz DDR
×
Reference Clock (HTT) Increase
For example, if the reference clock HTT is set to 250 MHz, the effective memory
frequency will be 500 MHz DDR or 1 GHz:
400 MHz DDR
×
(250 MHz ÷ 200 MHz)
NVIDIA nTune will report the effective frequency of memory in megahertz.
Figure 15 shows how nTune can be used to overclock memory. Adjusting memory
timings drive strengths, and possible memory and CPU voltages ever so slightly
might be necessary to achieve higher overclockability. Note that the
Clock Drive
Strength
is
2
rather than
0
. Also, the
Reference clock (HTT)
setting is 277 MHz
rather than 300 MHz.
8.
Run the Stability Test or 3DMark for an extended period of time to test
system stability with the overclocked memory. The Corsair TWIN2X2048-
8500C5 memories can run well beyond 1.1 GHz.
Figure 15. Memory Overclocking using NVIDIA nTune 5.0
Note:
Using odd-numbered CPU multipliers generate lower memory frequency
values than even-numbered multipliers even when using the same reference
clock (HTT) value.
