[Help] Memory modules not running at full speed

Hello,
I`m having an issue with the Z77A-G43 and some Kingston (KHX2133C11D34GX) dual channel (4Gb x 2) DDR3 modules, which are rated 2133Mhz.
I`v set the memories to 2133Mhz from within BIOS / XMP Profiles and and manually increased the voltage to 1.65v.
While in BIOS the modules are showed as running at 2133Mhz, ControlCenter shows them running at 1333Mhz, and CPU-Z shows them running at 1066.7 Mhz.
Am I missing something?

Quote
CPU-Z shows them running at 1066.7 Mhz
You are missing that this is double data rate. It's 1066,7 * 2 = 2133. You mem is running at ddr3 2133 like cpu-z and bios are listing. Control Center is simply wrong.

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