Asus specs and their QVL

tommi_balls

tommi_balls

tommi_balls

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Joined
10 Jan 2011
Posts
4
tommi_balls said:
Got a bit out of my depth here.
BIOS is telling me RAM my 3600 DDR4 is running at 2133MHZ. Changed speed manually and system wont POST.
So Asus X570 specs do not specifically state 3600 on 3rd Gen 3700X

BUT

QVL of 3rd Gen lists my exact RAM.

Is the spec sheet wrong or and QVL right? Confused here!

RAM
https://drive.google.com/file/d/1m3d15ackmgt92-Y7CBG-kY2SHghC7kHu/view?usp=sharing
MOBO
https://drive.google.com/file/d/1CwbmepOd-47ovXM1xO-CzQGuDQB5KLg5/view?usp=sharing
Click to expand...

Are you setting the xmp/DOCP speed or just changing the actual speed manually yourself?
 
Well you are talking to an OC virgin here so I've never delved into this field much. There was simply a drop down in the memory field for speed and so i hit up 3600. Surprised in this age why is does not see it automatically and defaults back to 2133MHz so that got me thinking to look at the compatibility list closer.
 
Try DOCP profile for 3600

If it doesn't post/work - use docp for 3600 and lower the speed to 3400, if still no joy 3200, etc.

Find where it works from and report back.
 
tommi_balls said:
Well you are talking to an OC virgin here so I've never delved into this field much. There was simply a drop down in the memory field for speed and so i hit up 3600. Surprised in this age why is does not see it automatically and defaults back to 2133MHz so that got me thinking to look at the compatibility list closer.
Click to expand...

There should be a setting in bios called D.O.C.P set this to enabled and set the 3600 profile.

This will set speed and timings and should also set Dram voltage which does not change when just setting the ram speed on its own. This would most likely be the reason is doesnt boot as it should be set to 1.35.
 
Ok thanks all. I'm getting the picture here that all the RAM speeds for my MOBO are O.C for anything over 2666MHz. That may not be a new thing to most of you but in my day none of that existed.

Consider me schooled so i will have a play about tonight and report back what occurs.
 
tommi_balls said:
Ok thanks all. I'm getting the picture here that all the RAM speeds for my MOBO are O.C for anything over 2666MHz. That may not be a new thing to most of you but in my day none of that existed.

Consider me schooled so i will have a play about tonight and report back what occurs.
Click to expand...

It’s existed since we stopped using synchronous busses, running PC66 SDRAM at PC100 was a thing in the late 90’s, heck some of it did 133+.
 
Right well I can report back that I've been successful in getting 3600 running. It's all about this XMP/DOCP and I found the menu. Thanks for the heads up all. Must say I do not think the ASUS UEFI BIOS is not the most intuitive or logically laid out.

Could be possible to get lower latency than the XMP but by extracting the chip brand using CPUz, a pre-determined timing set is not on the QVL list from Asus so I would be clocking it manually. Frankly for a basic media PC the gains are not worth my time in learning how to do this.

I did benchmark RAM speeds out of curiosity from 2133 to 3600 and yes that’s well worth it!

Well done folks you have all made me feel like an idiot and old at the same time.
 
If you wanted to optimise further than xmp then the ryzen d-ram calculator is the way to go, using this i managed to reduce my latency by 6 over xmp, not a huge gain but it just depends if you wanna spend the time tuning manually.
 
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