OCZ PC3-12800 OCZ3X1600LV4GK Intel XMP 2x2GB Reviewccokeman - November 15, 2009
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This set of modules from OCZ are designed to be used with the latest socket 1156 processors from Intel. The modules feature not one, but two XMP profiles, so you can boost performance with just a few quick changes in the BIOS. The first profile is set to run the modules at 8-8-8-24, with the second runs the modules at 1800MHz with the timings set to 9-9-9-28. By choosing the XMP profiles, the rest of the system settings are modified to enhance the whole systems performance. By using the profiles, you don't have to worry about playing with the settings in the BIOS and you can be assured of a system that will have its performance optimized. The black XTC (Xtreme Thermal Convection) heat spreaders not only look good and will complement just about every system out there they also do the job of keeping the modules cool.
When it came to overclocking the modules, just trying to get to the 1800MHz level without setting the 1800MHz XMP profile proved challenging on my test setup. So challenging that, the modules only could be run at a maximum speed of 1750 MHz and this is the only set designed for use on the P55 platform I have tested that has not breached the 2000MHz mark. When checking the voltages at the 1800Mhz level, the XMP 2 profile set the memory at 1.75 volts - well above the 1.65V that Intel specifies as the maximum voltage. The difficulty could be a compatibility problem and I cannot rule that out at this time, but the modules are certified with the ASUS P7P5D and Intel DP55KG. Testing on the P7P55D Premium delivered results similar to those reached with the Maximus III Formula, each board equipped with the latest BIOS. Two boards, two different processors and still the same result. Voltages from 1.5V up to 1.765V did not get the modules any higher, nor did manually adjusting the timings from 9-9-9- to 10-10-10 or any combination in between, yet the XMP 2 profile was stable at 1800MHz.
While all that sounds quite negative, there is an up side to this set of modules. At the 1750Mhz maximum speed, I could run the modules at the same 8-8-8 latencies. This set of OCZ modules allowed me to go as tight as 7-7-7 at 1622MHz, so you can get a small bump in system feel and performance. The price point of $142, which these modules will be offered at, is higher than most of the currently available sets of i5/i7 P55 specific memory kits by between $15 and $35. This set of modules most likely won't be for the enthusiast, but for the mainstream user looking for a step up from the 1333MHz kits on the market. There are kits with more overhead available for the enthusiast for a lower price, but when it comes down to no fuss overclocking of the memory, the XMP profiles prove beneficial and offer an increase in performance without the headaches. Couple that with OCZ's lifetime warranty and legendary support, and you have a set of modules that you can be sure will work as they are intended.
- XMP profiles
- XTC heatspreader
- Lifetime warranty
- Timings can be run tighter
- Low OC overhead on my test system
- XMP 2 Profile (1800MHz) set the voltage high