Articles: Memory
 

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Testbed Configuration

To investigate the overclocker potential of our Corsair Dominator TR3X6G1600C8D kit we put together the following platform:

  • CPU: Intel Core i7-920 (Bloomfield, 2.66GHz, 8MB L3);
  • CPU cooler: Scythe Mugen with Enermax Magma UCMA12 fan (1500RPM);
  • Mainboard: Gigabyte GA-EX58-UD5 (Intel X58 Express);
  • Memory: Corsair Dominator TR3X6G1600C8D (DDR3-1600 SDRAM, 3 x 2GB, 8-8-8-24);
  • Graphics card: ATI Radeon HD 4870;
  • HDD: Western Digital Raptor WD1500AHFD;
  • PSU: SilverStone SST-ST85ZF (850W);
  • OS: Microsoft Windows Vista x64 SP1.

Overclocking Experiments

During our practical experiments with Corsair Dominator TR3X6G1600C8D memory modules we tried to find out the maximum frequency and best timings, with which they remained stable. To accomplish this we used a hreat Memtest86+ 2.11 benchmark that checks the work of the memory subsystem under serious load.

First we found out that the modules can work stably at 1.65V voltage and 1600MHz frequency not only with their nominal settings of 8-8-8-24, but also in a more aggressive mode. This DDR3-1600 memory remained fully functional with its timings set at 8-8-7-24.

We have also studies the potential of this memory kit with different timings settings. The table below shows the maximum frequencies we managed to achieve with different timings. These Corsair Dominator tests were also performed at 1.65V voltage and 1T Command Rate.

There are two groups of results that are of primary interest to us here. We have to say that the overclocking potential of the tested memory kit turned out quite insignificant compared with the claimed 1600MHz spec. Even with more lenient timings of 9-9-9-27, Corsair Dominator TR3X6G1600C8D could be overclocked only at 1650MHz – the frequency that can also be reached with the default timings.

However, these memory modules performed very well with aggressive 6-6-6-18 timings that have been included into the supported XMP profile not for nothing. With these timings settings Corsair Dominator TR3X6G1600C8D remained stable at over 1333MHz frequency. Although, we were not impressed by this achievement, especially after the results demonstrated by Kingston HyperX KHX14900D3T1K3/3GX.

 
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