Impossible to activate XMP

Is there a toggle to the right of CPU Configuration?

If so, set it to Manual and you'll have XMP available.

hgonzale wrote: First, I did a mistake. I have Ryzen 5 1400, not 1700. Sorry Second, I upgraded the BIOS to 3.0. Its came with 1.6, very old. I have about 6 computers, 2 with AB350M (1 with APU and 1 with Ryzen) and 4 with AB350 Pro4 (2 with APU and 2 with Ryzen). I am not exchanging the CPUs. I can't setup the XMP in any motherboard, even, I am not able to introduce manually (no option for it) the speed, even for setting at 2400 Mhz. There is not option available for introducing it. If the APU support 2133/2400, I could enter the values for setting the speed in 2400. Or the memory Ripjaws that is 2400, I am not able to setup at 2400....

What voltage are you running at? I've got the same board and I've had trouble getting stock speeds at lower voltages. Try turning on XMP to 2400/2667 and set your DRAm voltage to 1.35v with the rest at auto. I have gotten mine to run at 2666 with 1.275v and lower timings paired with an R5 1400.

EDiT: The XMP line on that OC tab should have a box on the right that lets you turn it on & off. Turn it on and you should be able to set the timings. You can try restoring UEFI to default if its acting wonky & not displaying the menu.

Edited by Zach1928 - 23 Aug 2017 at 12:43am

According to the specifications for your board, when using A-Series APUs (Bristol Ridge) processors like yours:

AMD 7^th Gen A-Series APUs support DDR4 2400/2133 ECC & non-ECC, un-buffered memory

http://www.asrock.com/mb/AMD/AB350%20Pro4/#Specification

Which means the XMP profile as well as DDR4 memory with speeds above 2400 are not supported. The base/stock SPD speed of your memory models must be 2133, which is why you see that speed. That is shown in the Main screenshot you provided.

Your post also said the Ryzen 7 1700 processors also don't support the XMP profile. According to the specifications, that processor should support DDR4 memory speeds above 2400, and support the XMP profile.

Did your board come with the 3.00 UEFI/BIOS version installed out of the box? Or did you install the 3.00 UEFI yourself?

We have not had any other posts about the AB350 Pro4 not being able to use the XMP profile with Ryzen 7 processors like the 1700. When you install a different processor in any board, you must clear the UEFI/BIOS/CMOS with the jumper on the board. In the case of a processor change, removing the board's battery at the same time is probably required.