Asus Sabertooth 990FX R2.0 RAM support ...

[golemka]

Hello! I would like to ask what kind of RAM is supported to this motherboard except those what are at asus.com because I would like to buy at least 1866 Mhz modules but none of those is available or its not cheaper than 180 euros at my country .
I would like to put THESE to the motherboard and im really interested that would it work or not .

 

[HillBillyAsian]

The real scoop on higher-frequency ram is you really wont need it unless you're running a apu. It's also dependent if on your cpu. If you buy the 2400 ram that you mentioned it will just be downclocked until you overclock it to 1866 through your bios (which is easy with uefi)

 

[golemka]

So if I buy those , RAMs will be downclocked to 1866 Mhz? Because this is the maximum frequency what the mobo can handle (4 x DIMM, Max. 32GB, DDR3 1866/1600/1333/1066 MHz ECC)

 

[HillBillyAsian]

yep

 

[bryonhowley]

^ Your best bet would be to get a good set of 1866 DDR 3 ram instead since you are not going to be able to use the ram at 2400 anyway.

 

[golemka]

Yes , Im on it .
OK , so I found these :
PV316G186C0K
CMZ16GX3M2A1866C10
CMZ16GX3M4X1866C9

Which of these would be compatible with the motherboard?

The last one is almost the same as on the memory support list but its missing the "R" letter . Also , the last one is 4*4 GB kit what would or wouldnt work in dual channel?

 

[Calvin7]

AMD FX Key Architectural Features
http://www.amd.com/us/products/desktop/processors/amdfx/Pages/amdfx-key-architectural-features.aspx
Footnote 2 at bottom of page

4*4GB kit is 2 DPC (DIMM per Channel), so 1600MHz would be the supported speed.

Overclocking example:
http://www.tomshardware.com/answers/id-1752459/dominator-platinum-8320.html

 

[golemka]

I own a Phenom II CPU not an FX . I just want to use the fastest memory as possible in the easiest way

 

[golemka]

Ive got some info and without OC the basic frequency of RAMs will be downgraded to 1333 Mhz . How can I make this faster? Or should I throw it to trash and buy a new CPU/Mobo ?

 

[HillBillyAsian]

Ive got some info and without OC the basic frequency of RAMs will be downgraded to 1333 Mhz . How can I make this faster? Or should I throw it to trash and buy a new CPU/Mobo ?

no need to throw anything away. ANY motherboard you buy you would need to overclock to get the fastest supported speeds of the mobo. With the sabertooth it's easy. If you do happen to buy new ram that supports 1866, all you have to do is go into your bios, go to the advanced page (top right corner) scroll down jsut a bit and you will see RAM Profiles, and you just choose the speed you want it set as like 1866. it's really simple.

 

[golemka]

And how to enable inside of the BIOS the XMP? I also red about timings that would help a lot but I havent found any guide with alot of pictures instead of text .

 

[HillBillyAsian]

when you load the XMP file, it automatically loads the preset timings for the increased speed.