Ram not running on manufacture speed

[BiggerAndScarier]

I have corsair vengeance pro 8gb kit and i cant get the ram to run at 2400 mhz.

My system specs:
Cpu: fx 8350
Mb: ga-990fxa-ud3
Ram: Corsair vengeance pro 2x4 2400mhz
Gpu: Asus GTX 680

I have had the ram running at 2133 (I think max on 8350) then installed windows 10 64 bit and ram will only run at 1875mhz.If anyone could help it would me much appreciated, I would also like to learn more about how to set ram timings in gigabyte bios.

 

[Tradesman1]

Reset to 2133, raise the CPU/NB voltage to 1.25

 

[BiggerAndScarier]

Reset to 2133, raise the CPU/NB voltage to 1.25

In gigabyte bios i changed memory multiplier to 10.66 (2133mhz) and it failed to boot and reset memory down to 1340mhz. What should i do to fix this problem? (Highest bootable with windows 10 is 1875 mhz 9.33 multiplier)

 

[Tradesman1]

The MC might not be able to handle 2133, might be stuck w/ 1866

 

[BiggerAndScarier]

The MC might not be able to handle 2133, might be stuck w/ 1866

In windows 7 ultimate I had achieved ram running at 2133 at 1.65 volts w/ out messing with the timings. Could windows 10 be stopping my ram from achieving 2133? (was using same setup just wiped ssd and installed windows 10 64)

 

[Tradesman1]

Might have to do with Win10 or drivers in relation to Win 10, I haven't worked with many AMD rigs running Win 10 other than mine and Haven't experienced anything like this (in sig)

 

[BiggerAndScarier]

Might have to do with Win10 or drivers in relation to Win 10, I haven't worked with many AMD rigs running Win 10 other than mine and Haven't experienced anything like this (in sig)

How fast can your ram run on your amd rig? Also do you know anything about navigating gigabyte bios for ram timings? not used to it.

 

[Tradesman1]

full load of 2400 (32GB), ran a few sets of 2400 when I did this article:

http://www.tomshardware.com/reviews/dram-benchmark-fluctuations,4080.html

 

[BiggerAndScarier]

full load of 2400 (32GB), ran a few sets of 2400 when I did this article:

http://www.tomshardware.com/reviews/dram-benchmark-fluctuations,4080.html

I only have one xmp profile to try to use and it tryed to run at 2133 but it wont boot. What timings did you run to use 2400 on an fx cpu?

 

[Tradesman1]

Iwas able to run them at Spec with the exception of the 2 sets of two sticks, the Adata and the Radeon

 

[BiggerAndScarier]

Iwas able to run them at Spec with the exception of the 2 sets of two sticks, the Adata and the Radeon

Whats interesting is my ssd boot is 10 seconds longer on 1875mhz rather than 1333. and will there be any performance hit going from 2133 to 1866?

 

[Tradesman1]

Might be, might even be an increase if all is straining at the higher data rate