Question I can't adjust DRAM frequency

[feomothar]

Hello,

I have DDR3 RAM which can run at 1866 (HyperX Predator 8GB DDR3 1866 MHz CL9 Dual Channel Kit) and I recently bought another pair of DDR3 RAM at the same frequency (HyperX Fury Black 8GB DDR3 1866 MHz CL10 Dual Channel Kit). When adjusting the Bios Settings to 1866 it says it failed to load OC settings...and loads the default 1333. I must be doing something wrong perhaps ?
Running this on : MSI Z87-G45 GAMING which clearly supports dual channel and frequencies: 3000 O.C./2800 O.C./2666 O.C./2600 O.C./2400 O.C./2200 O.C./2133 O.C./2000 O.C./1866 O.C./1600/1333/1066 MHz

Thanks

 

[Lutfij]

Welcome to the forums, newcomer!

Are both kits identical? From the way you've listed them, I don't think they are, their latencies are different and with that I'm sure that they are constructed differently.

In either case, see if the rams work as is(stand alone). Make sure you're on the latest BIOS update for your motherboard and then make sure you've populated the right slots for the motherboard per your manual's instructions.

 

[feomothar]

Thanks for the quick reply, one is CL9 and one is CL10 I read that shouldn't make a difference as long as it's the same DDR and frequency?
DIM 1 and DIM3 are the blue ones, DIM2 and DIM4 are the black ones (recently purchased):

https://imgur.com/a/weulE9U

View: https://imgur.com/a/weulE9U

https://imgur.com/4ZFtdEb

View: https://imgur.com/4ZFtdEb


Perhaps I need to setup DRAM timing or DRAM reference clock ?

 

[feomothar]

After some more research I think I am begging bottle necked by my CPU:

Memory
Type	DDR3
Max Memory	32 GB
Frequency	1333, 1600 MHz
Support Type	Dual Channel
Max Memory Bandwidth	25.6 GB/s

Even so I've clock the DRAM to 1600 still doesn't work..