Here is our test PC configuration:
- CPU: Intel Core i7-920 Retail
- CPU Cooler: Intel Stock
- Motherboard: Asus P6T Deluxe BIOS 2209
- PSU: OCZ GameXStream GXS600 SLI-Ready
- VGA: MSI 7600GT Silent (stock memory/core timings)
- HDD: Seagate 7200.12 500GB
- OS: Windows 7 x64 with all the latest updates installed
We will try to experiment with the installed memory and check how they oveclock. In order to keep memory stable under all conditions we suggest to use set the DRAM and QPI/DRAM at 1.66V and 1.35V, respectively. These settings should be made under the DRAM options of your BIOS.
After installation, the CPU-Z v1.56 provides information about the OCZ3G1333LV8GK modules. The memory supports the standard JEDEC timings for the frequencies of
444/518/592 and 666MHz:
With the voltage set to 1.50V, the memory gave stable CL8 at 533MHz (1066) and a CL9 at 666MHz:
Keeping the voltage to 1.50V, the memory easily reached the 1453MHz without sacrificing the stability of the system:
The next step was to pump up the voltage to 1.65V. This time we got a frequency of 534MHz (1067) with CL7-7-7-14 and 668MHz (1333) at CL8. The memory reached its limits at ~1504MHz with the system to remain totally stable.