Legit Reviews has conducted an experiment in the course of which specialists from the web-site managed to overclock Corsair XMS2-5400UL memory module kit to the speed of 1000MHz, hitting the milestone for both DDR2 and DDR memory types. The experimentation was carried out on a mainboard powered by Intel's forthcoming 955X core-logic and Intel's dual-core Pentium Extreme Edition 840 processor.

?When I hit 1GHz on the memory I was actually shocked how easily it was done and the fact an Intel reference board was used. Usually the Intel reference boards are not known to be good overclocking boards, but that is not the case on the latest i955X boards. The new memory controller design that is being used on the Intel 955X Express Chipset is by far better for overclocking that then one seen on the i925X and i925XE boards.  The Intel reference board (D955XBK) only allows voltage options up to 2.08V, but talking to tier one motherboard makers it seems as if most of the retail enthusiast boards will go up to at least 2.2V on the DIMM's.  I imagine that as the enthusiast boards start to hit the retail market seeing overclockers reach DDR2 1000Mhz will be something that is expected,?said Nathan Kirsch of Legit Reviews web-site.

• Legit Reviews: LR & Corsair Break the 1GHz DDR2 Memory Barrier.