asus F2A85-M pro with amd A10

[minty33]

Looking for some last minute help. I ordered the corsair 32gb vengence 1866mhz module for the mobo and chip listed in the title. I should have done more research prior to ordering but I assumed if it was DDR3 and 1866 compatable on the mobo then brand ect.. didn't matter. When it arrived it only said Intel on the box so I got concerned and started googling my set up and vengeance with amd's. In genral I can't find much in regards to my mobo and or the trinity line of processors with this model ram (CMZ32GX3M4X186610R). I did see a post in this forum where a guy had exact same setup and said he couldn't get reliability no matter what voltage ect.. he set. I was not aware of voltage compatability . Bottom line can anyone tell me before I open this corsair product if I should return it to get something else or will it be stable and reliable with my Asus f2a85-m pro and A10 apu. I will be running a Dom0 xen server with minimum 8 appliances on here and need my memory to work well.

[peanutz94]

It's all good. The Vengeance series is compatible with the latet AMD processors too. The only thing you might run up against is the memory controller limitations on the CPU. Meaning you might be limited to 1600mhz with all four slots filled and an FX based CPU.

 

http://forum.corsair.com/v3/showthread.php?t=110429

[minty33]

Thanks Peanutz. My processor is an A10 5600k trinity apu quad core 3.8 ghz. This is not fx I don't think, is that right. Why would they make an fm2 socket mother board rated for 1866mhz if the chip in that socket won't handle that? Only A series fits my mobo isn't A series different than fx and do you know if the A series can handle 1866. Specifically the A10.

 

Let me amend this with more info. My chip has a dual channel memory controller that can handle up to 1866 per amd's specs on Trinity processors like the A10. On my corsair box where it say's Intel xmp certified it also says quad channel. Is this an issue if my controller is dual channel. I will be using all 4 slots with his corsair module. I'm sorry I'm just not up to speed on ram specs etc..

[peanutz94]

Sorry, but even though you have the A series your still up against the same limitations to a point. You can run 1866mhz with just two sticks but not four. It has nothing to do with the mb , but the load on the memory controller in your CPU. Four sticks = incresed load so you may be limited to 1600mhz as that chart shows that I linked to.

I understand perfectly what your asking, I just don't think you were aware of some limitations of that CPU. That chart is direct from AMD! Please look it over again! :)

On my corsair box where it say's Intel xmp certified it also says quad channel. Is this an issue if my controller is dual channel.

It makes no differrnce to the memory . Quad, dual, single, and triple channel is a function of the MB and not the memory.. So a four stick kit in your board would still only run in dual. But the same kit in an Intel based socket 2011MB would run in QUAD channel. And if you used three sticks out of the four in an X58 board they would run in triple channel. and if you used just one stick in any of them it would run in single channel.

[minty33]

Thanks again peanuts,

I figured I would actually post the exact settings per my conversation with AMD. You were right about not running 1866 with how much memory i Was using but in my case its not the number of sticks on the A10 its the max memory. Your chart only went up to A8. Anyway if anyone is using the same setup I am if you use more than 8gb of ram you have to lower the MHz. In my case with 32gb I need t dial it all the way back to 1333. If you had 16gb then you can do 1600. He did say I could probably run it higher than 1333 but for max stability that's the recommended. Also at that lower speed the volts should be reduced to 1.25 and the timing stay the same but that should be detected by the bios when you set it to 1333. I hope this thread helps someone out who has the same hardware as me. Asus F2a85 mobo and A10 5600k apu and corsair vengence or any memory for that matter over 8gb.

[Helpmeoutplease]

Have the same board and an A10 5800k, and cannot get my four sticks of cmz8gx3m2a1600c9 to run in it. Will boot with 3 sticks, but not four?

[RAM GUY]

You will have to run the memory at DDR1333 at 2T Command Rate with more than two modules installed.