So, let's talk about this kit of ram...Patriot Viper Xtreme Division 2 2133C11 8GB.
They run at 2133 MHz 11-11-11-30 with 1,65V. The kit is composed by 2 modules 4GB each. Pretty sure they are Hynix.
So let's remove the heatspreader to be sure !
What about overclocking ?
Screen (1,65V) thightest timings
1600MHz @ 7-9-8-27 2T
1866MHz @ 8-10-9-27 2T
2133MHz @ 9-11-10-28 2T
103,2 BCLK to get 2200MHz
2201 @ 9-11-10-27 2T
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Mooooar volts... 1,725V
and...
2202MHz 9-11-10-15 1T almost rock solid lol
Read full review here: http://www.hwmaster.com/2012/06/18/recensione-patriot-viper-xtreme-divison-2-2133mhz-8gb/