My PC doesn't show proper RAM speed

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wolffex

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Aug 29, 2013
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I bought new RAM for my machine since I really need more because of my post production and animation work. I maxed out what my motherboard could handle.

My motherboard is an Asus Sabertooth x79
This is the RAM I bought:
https://www.amazon.ca/gp/product/B006YG9D0M/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

I got 64GB of 1866 DDR3 Ram (8x8 sticks). All the Ram sticks are exactly the same.

I was able to install it and get it to work, my computer shows me that I have 64 GB of Ram installed. However it shows that the speed is only 1333! At first I thought maybe Amazon made a mistake and sent me the wrong ram but no, they sent me the correct RAM. It even says so on the box and I even took a picture of the stick below:

https://i.imgur.com/HbqqFW2.jpg

Please help me. I know my motherboard is capable of 1866 speeds, it even says so in the motherboard manual and the asus sabertooth x79 website.

In the BIOS it shows total memory: 65536 MB (DDR3 1333MHz). And then under DRAM Information it shows DIMM_A1: CRUCIAL 8192MB 1333MHZ.

https://i.imgur.com/vGc4x3f.jpg
https://i.imgur.com/T5Lj2Q7.jpg
https://i.imgur.com/Ne9g7sS.jpg
https://i.imgur.com/ygiMNym.jpg
https://i.imgur.com/YxxvMdW.jpg

Can someone please show me a step by step guide on how to go about this? I am not very good when it comes to BIOS.
 
Solution
R
It has worked. You're RAM's transfer rate is now 1866MHz.

What I assume that first image is showing is what the ram would normally default to. Think of XMP as a factory overclock.

Same thing goes with the second image. If you are wondering why it is 667MHz instead of 1333MHz, it is because 667MHz is the real frequency and 1333MHz is the transfer rate (DDR = Double Data Rate).

You'r third image is showing what your ram is actually running at at that time.

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wolffex

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Aug 29, 2013
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Paul, I tried that and it sort of worked. But there are some concerns with that.

As you can see under this screenshot that it now shows my total memory (DDR 1866Mhz), which is wonderful. However, under the DRAM Information, you can see it still displays the individual RAM sticks as 1333Mhz, why is that? I know the RAM sticks are 1866 and not 1333 but why does the BIOS still show that?

https://i.imgur.com/ENyL13k.jpg

Furthermore, using CPU-Z, it shows my Max Bandwidth at PC3-10700 (667 MHz), again why is that?

https://i.imgur.com/0hUXAZm.jpg

But under here it shows 933.2 MHz:
https://i.imgur.com/E777Zcx.jpg

So am I getting what I paid for in 1866 or its 1333?
 
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Rexper

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Apr 12, 2017
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It has worked. You're RAM's transfer rate is now 1866MHz.

What I assume that first image is showing is what the ram would normally default to. Think of XMP as a factory overclock.

Same thing goes with the second image. If you are wondering why it is 667MHz instead of 1333MHz, it is because 667MHz is the real frequency and 1333MHz is the transfer rate (DDR = Double Data Rate).

You'r third image is showing what your ram is actually running at at that time.

 
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