The Core i7 QPI and memory controller uses a single
voltage system that cannot exceed 1.65v, otherwise permanent damage to the QPI
and memory controller is possible, which renders the CPU completely useless.
For this reason, it provides new challenges to memory companies to get the best
speed out of their modules while keeping the voltage as low as possible.
Today CSX claims to have made it possible to run this memory at 2000MHz on
the Core i7 with only 1.65v fed to them. Let’s see what they have in store for
us. @ TweakTown