AMD AM3 CPU's and Memory Speed Issues above 1333 Mhz.

[Bobishon]

Absic will this work for GA990XA-UD3 with 4X4 kingston predator 2400MHz and AMD FX4170 4.2GHz. I mean to set it up at least on 2000MHz. Thanks

[absic]

My understanding of these CPU's from the info I have be given by AMD is that it is recommended if you want to run fast RAM (above 1600MHz) you should only use two sticks (1 per channel).

I know that some users have been able to run fast RAM with all 4 slots populated but I have no first hand experience of doing this so I can't say for certain if it will work or not. Sorry. 

[thexfile]

I'm running 16 GB (four sticks) of kingston HyperX Blu 1333 and Windows Assessment gives this memory a 7.9 rating.

Nothing wrong with 1333 

[dmdilks]

I'm just adding to this to maybe help people out.

I'm running a Ga-990FXA-UD5 with a FX 8150 cpu and the memory is Mushkin Redline PC3-12800 with timings 7-7-7-18.

I had to do what somebody else posted on this thread that to get it to work I hard to set the speed & timing manually.

Memory speed set to 8.00 / 1600
Timings set to 7t - 7t - 7t -18t