Two ram 1600 Mhz running at 1333 Mhz

[hoanglan1996]

I just got a new ram stick from my brother which is a HyperX Fury Red 8GB 1600 Mhz. I already have a Kingmax 4GB 1600 MHz which i have enabled XMP. When i run these two together, cpu shows they are running at 1333Mhz. However, when i run them separately ,cpu-z shows them running at 1600 MHz.

My mobo is Gigabyte H81M-DS2.

Sreenshots of CPU-z:

Are there anyway to make them run at 1600 Mhz ? Thanks in advance

 

[GhislainG]

You have to manually set the timings and frequency because the Kingston module is very different and it has no XMP settings. You need to use the Kingston timings.

 

[volkgren]

They have different timings. At 1600 XMP the 4GB has lower timings than the 8GB. Which means they wont' run together at their default XMP.

You might be able to manually set your speed and timings the higher timing of the two.

Disable XMP and set both sticks to these timings at 1600MHz.

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[hoanglan1996]

Where i can edit tRC value? I can't find it anywhere

 

[GhislainG]

You don't need to.

 

[volkgren]

I don't know. I would try it just like you have it with the advanced timings on auto.

 

[hoanglan1996]

They have different timings. At 1600 XMP the 4GB has lower timings than the 8GB. Which means they wont' run together at their default XMP.

You might be able to manually set your speed and timings the higher timing of the two.

Disable XMP and set both sticks to these timings at 1600MHz.

11
10
10
30
39

By the way, are you sure that i have to disable XMP on my 4GB ram ? Because it won't run at 1600 MHz without XMP enabled

 

[volkgren]

If you can't change the speed to 1600 without enabling XMP then sure try it enabled. Can you enable just the 4GB XMP?

 

[hoanglan1996]

Yeah. Only the 4gb ram has xmp option. The 8gb one doesn't. They are still running at 1333 after i changed the timings. Any other suggestions ?

 

[GhislainG]

Once you start using manual settings XMP is not active. In addition to the timings, you also need to manually set the memory frequency on the M.I.T. page.

 

[hoanglan1996]

You were right volkgren. I had to disable XMP on my 4 gb ram and set memory multiplier to 16 ( default was 13.33). Now my both of my ram sticks are running at 1600 MHz.

Thanks a lot for your help guys. I really appreciate it.