ASRock AB350M Pro4 RAM problems. Could use advice

Here is my build:

Ok, so I've got some more information on this board.  It only currently supports 2400 MHz ram if you have dual channel ram.  Mine is dual channel.  If you have single channel....well I cannot say what your max should be because I have not researched that.  Although the instruction book seems to indicate 2667MHz if you have single channel RAM (use slots A2 and B2).

murander wrote: Ok, so I've got some more information on this board.  It only currently supports 2400 MHz ram if you have dual channel ram.  Mine is dual channel.  If you have single channel....well I cannot say what your max should be because I have not researched that.  Although the instruction book seems to indicate 2667MHz if you have single channel RAM (use slots A2 and B2).   @TAMW - I'm pretty sure you should be using RAM slots A2 and B2.  Give that a shot and see what you can do.  By the way, even if you don't get higher RAM frequencies you should probably leave your RAM in slots A2 and B2 because you might get better results when the BIOS updates come out sometime this month (May 2017).   Our motherboard does not currently have an option to adjust load line calibration.  That is too bad because it is what you need to attempt to address that vdroop.    I haven't found any options in the BIOS for adjusting the uncore voltage.  Does anyone see this? (I'm pretty sure it does not exist at this time and they may never give us access since this is a budget board).

If you check your board's Memory QVL List, you'll find memory models up to 3000 that are supported in dual channel mode:

http://www.asrock.com/mb/AMD/AB350M%20Pro4/index.asp#Memory

Memory compatibility is the biggest issue currently with Ryzen. If you check G.SKILL's list of compatible memory for the AB350M Pro4, you get this (sorry for the text link, some URLs fail in the forum editor link tool):

http://www.gskill.com/en/configurator?manu=52&chip=2999&model=2993

A2 and B2 are the correct slots to use. I believe I recall another user of Ripjaws V memory in his Ryzen board also had poor results. The best description I've read about Ryzen memory compatibility is that it is a "crap shoot", meaning pure luck if it works or not. All of the existing (pre-Ryzen) DDR4 memory was designed for Intel systems, and the XMP profile data does not work with Ryzen. Memory that uses Samsung B-die memory chips has the best chance of working well with Ryzen.

How are you configuring your memory, manually? Did you increase the DRAM voltage to 1.35V?

What VCore voltage setting are you using? Auto, Offset, or Fixed? On some boards the LLC option won't appear when Auto is used.

"Uncore" is really an Intel term, do you mean the SoC voltage?

Hopefully your board will get an LLC option when the new AGESA 1.0.0.6 CPU microcode is released in May by AMD, but when that will happen, who knows?

parsec wrote: A2 and B2 are the correct slots to use. I believe I recall another user of Ripjaws V memory in his Ryzen board also had poor results. The best description I've read about Ryzen memory compatibility is that it is a "crap shoot", meaning pure luck if it works or not. All of the existing (pre-Ryzen) DDR4 memory was designed for Intel systems, and the XMP profile data does not work with Ryzen. Memory that uses Samsung B-die memory chips has the best chance of working well with Ryzen. How are you configuring your memory, manually? Did you increase the DRAM voltage to 1.35V? What VCore voltage setting are you using? Auto, Offset, or Fixed? On some boards the LLC option won't appear when Auto is used. "Uncore" is really an Intel term, do you mean the SoC voltage? Hopefully your board will get an LLC option when the new AGESA 1.0.0.6 CPU microcode is released in May by AMD, but when that will happen, who knows?

I'll try the a2b2 slots then. I've only tried up to 1.3v DRAM, as the spd only says 1.25v, will give 1.35v a go.
And yes, I configure memory manual, tho there aren't a lot of settings, just the main timings, not even command rate.

There is only Auto and Manual vcore settings for  this board, but I guess manual is the same as fixed. I use manual of course.

Btw, what exactly is VDDP voltage? The only voltage settings in the bios are Vcore, DRAM, "1.8v", and VDDP.

Might have to copy the links and paste/go.

So here is the link to the above(mentioned by murander) long version... very informative. It is titled "MSI & AMD Dragon Squad | Robert Hallock?�s Entire Talk on Ryzen & Overclocking".


https://www.youtube.com/watch?v=KT8BQaQmL1U


Here is a link that contains the shorter version. It is titled "We Got Inside AMD?�s Texas Home - & Learned How To Overclock RAM on Ryzen - #DragonSquad".


https://www.youtube.com/watch?v=vZgpHTaQ10k


I watched them both just to see if there was any 'break thru' for my DDR4 @3200mhz that is currently running @2400mhz. It was a nice thought though, right?



Edited by Kevin A - 11 May 2017 at 2:10am