its fairly normal that hyper clocks lower then psc on clarkdale, no idea why but I’ve also never had luck clocking them high on that.
Also v2.1 1600c6, 1866c7, 2000c8, 2000c7 and 2250c8 as corsair are guaranteed hyper, though you typically want to run them as 6-7-5 or 7-7-6. 7-6-6 is not optimal.