DDR3 Accelerates: DDR3-1800 SDRAM Roundup --- TheThirdMedia Hardware

Testbed Configuration for Memory Parameters Check

To check out the technical parameters and overclocking potential of the tested kits we assembled a special test platform that included the following hardware components:

CPU: Intel Core 2 Duo E6750 (LGA775, 2.66GHz, 1333MHz FSB, 4MB L2, Conroe).
Mainboard: ASUS P5K3 Deluxe (LGA775, Intel P35, DDR3 SDRAM).
Graphics card: OCZ GeForce 8800GTX.
HDD: Western Digital WD1500AHFD.
PSU: SilverStone SST-ST85ZF (850W).
OS: Microsoft Windows Vista Ultimate x86

Memory overclocked with the minimal FSB:Mem divider of 1:2. System stability was checked with S&M 1.9.0 and Prime95 25.3 utilities.

I would like to stress that you need to comply with a few important conditions in order to clock the memory to 1800MHz and higher on Asus P5K3 (and most likely other mainboards, too). By ignoring these conditions you may hinder the overall stability of your system dramatically. The main thing you should remember is that the DDR3 SDRAM modules need to be installed into second and fourth DIMM slots (they are of black color on the mainboard in question). For some reason, the other pair of DIMMs doesn’t guarantee memory subsystem stability when it is overclocked to high speeds. Moreover, you can’t overclock memory without raising the North Bridge voltage at least to 1.55V.



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