X370 killer SLI/ac 3000MHz memory?

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   Hi,
I am a bit confused on whether this board (X370 Killer SLI/ac) can achieve memory speeds around 3000 MHz, because in UEFI I can see options for clocking the memory up to 3200, but in the motherboard's manual it only says that up to 2667 is supported. So what is the actual limit?

In UEFI I tried the 2993 option, but the system did not POST, but is this something that can be fixed with an UEFI update?

I am asking because it looks like Ryzen's performance depends on the speed at which the infinity fabric is running, which seems to be determined by the memory speed. Should I just change the mobo if I want higher memory speeds?

Thanks!

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raxbg Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Mar 2017 Status: Offline Points: 5	Post Options Post Reply Quote raxbg Report Post Thanks(0) Quote Reply Topic: X370 killer SLI/ac 3000MHz memory? Posted: 27 Mar 2017 at 5:50pm
	Hi, I am a bit confused on whether this board (X370 Killer SLI/ac) can achieve memory speeds around 3000 MHz, because in UEFI I can see options for clocking the memory up to 3200, but in the motherboard's manual it only says that up to 2667 is supported. So what is the actual limit? In UEFI I tried the 2993 option, but the system did not POST, but is this something that can be fixed with an UEFI update? I am asking because it looks like Ryzen's performance depends on the speed at which the infinity fabric is running, which seems to be determined by the memory speed. Should I just change the mobo if I want higher memory speeds? Thanks!

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 27 Mar 2017 at 11:00pm
	The below page explains things easier than me typing out a 6 paragraph reply. Suffice it that Ryzen does not have 3000 and 3400 memory divisors. That doesn't mean they won't function, assuming compatibility. To be clear, as it is wholly CPU related and not BIOS nor motherboard shortcomings, this applies across ALL motherboard manufacturer's, not just ASRock. https://community.amd.com/community/gaming/blog/2017/03/14/tips-for-building-a-better-amd-ryzen-system hth

raxbg Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Mar 2017 Status: Offline Points: 5	Post Options Post Reply Quote raxbg Report Post Thanks(0) Quote Reply Posted: 28 Mar 2017 at 6:16pm
	Yay, so 3200 memory should work :) One last question: My current memory is rated at 3000+, should I expect it to work at 3200 or should I change it with one rated at 3200? When I tried 3200 with the current BIOS version it did not work. I see a BIOS update coming, so maybe that will fix it? Thanks again :)

ming3r Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Mar 2017 Status: Offline Points: 16	Post Options Post Reply Quote ming3r Report Post Thanks(0) Quote Reply Posted: 28 Mar 2017 at 11:30pm
	Give 2933 a go then. My 3000 Team ram will only go up to 2666 but I haven't messed with timings too much.

raxbg Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Mar 2017 Status: Offline Points: 5	Post Options Post Reply Quote raxbg Report Post Thanks(0) Quote Reply Posted: 29 Mar 2017 at 3:53pm
	My memory is also from Team and I was only able to get it up to 2666. I will wait for the BIOS update to get out of BETA so I can mess with the timings and try to get it any higher. Although I am happy with the current performance and will probably not spend too much time trying to get higher memory speeds. It's not the end of the world :D Thanks!