3600mhz Memory, running only at 2133mhz with xmp enabled

[Ryzn]

Hi,

 

i just bought a Tirdent Z Royal silver with 3600mhz speed and my motherboard is Aorus X470 Gaming Ultra. I set the xmp profile but i'm not sure if its running at rated speed. i tried opening command promt and run "wmic memorychip get speed" and only got 2133mhz. 

 

Please see attached image for my uefi settings.

 

Do i need to manually overclock it? Please help.

 

Thanks!

[SammyV]

Your motherboard does not officially support G.Skill memory kits rated at 3600MHz (according to Gigabyte's memory QVLs here, here and here). It is likely that your memory isn't identified correctly, and hence the board defaults to the JEDEC standard (which is 2133 mhz as seen in your image).

 

Several BIOS updates have been released since the latest QVL document, my first step would be to update the BIOS and see if that helps. Based on the information you have provided it is difficult to provide other advice - issues with memory still seem to be somewhat common on Ryzen platforms, you might have to dig deep for a definite solution.

[Turtle Rig]

4 hours ago, SammyV said:

Your motherboard does not officially support G.Skill memory kits rated at 3600MHz (according to Gigabyte's memory QVLs here, here and here). It is likely that your memory isn't identified correctly, and hence the board defaults to the JEDEC standard (which is 2133 mhz as seen in your image).

 

Several BIOS updates have been released since the latest QVL document, my first step would be to update the BIOS and see if that helps. Based on the information you have provided it is difficult to provide other advice - issues with memory still seem to be somewhat common on Ryzen platforms, you might have to dig deep for a definite solution.

Can't he manually set it to 3600Mhz or close to it ?

[unsungheroist]

29 minutes ago, Turtle Rig said:

Can't he manually set it to 3600Mhz or close to it ?

see no reason why not. but your mileage will vary

[Turtle Rig]

2 minutes ago, unsungheroist said:

see no reason why not. but your mileage will vary

Also he might have to raise the voltage.  But I would take CL over Mhz any day.  Your performance can actually get worse.

[nick name]

I'm not familiar with the Gigabyte BIOS so I can't tell if it actually applied the profile, but it doesn't look to me like it has.  I would also make certain you used the RAM slots the manual instructs to use.  

[Ryzn]

Thanks all for the reply!

 

I did updated my BIOS to latest version and it didn't fix the issue still. so what i'm doing next is manually set the timings and voltage to reach atleast 3200mhz speed since that's the supported speed of my motherboard.

[Ryzn]

3 hours ago, Turtle Rig said:

Also he might have to raise the voltage.  But I would take CL over Mhz any day.  Your performance can actually get worse.

can you explain why would you take CL over Mhz?

 

I saw a video about cast latency vs Mhz and the result was a win for Mhz. they tried a bunch of ram speed and CL and it turns out that its better to get high Mhz with low CL than high CL with low Mhz

[nick name]

What capacity is the kit?  And did you confirm that the RAM is installed into the correct slots?  

[Turtle Rig]

13 minutes ago, Ryzn said:

can you explain why would you take CL over Mhz?

 

I saw a video about cast latency vs Mhz and the result was a win for Mhz. they tried a bunch of ram speed and CL and it turns out that its better to get high Mhz with low CL than high CL with low Mhz

Yes but the thing is your mobo connected to your CPU there is a certain ammount of time it takes for them to read each other and lower latency is key there.  As for Mhz yes it does matter but in the real world a 2666Mhz and a 3200Mhz wont have any difference, however the latency which is the time it takes for the RAM to talk to mobo and mobo to cpu;  there is only so much information the CPU can work with at a time which is why 2666Mhz and 3200Mhz has no real world performance difference but a lower latency can help thing, alto you wont notice that as well.

[Ryzn]

5 minutes ago, nick name said:

What capacity is the kit?  And did you confirm that the RAM is installed into the correct slots?  

its a 16gb 3600mhz kit. and yes i think i put it on the correct slot. its on ddr4_1 and ddr4_2..see pic below for reference

[Ryzn]

3 minutes ago, Turtle Rig said:

Yes but the thing is your mobo connected to your CPU there is a certain ammount of time it takes for them to read each other and lower latency is key there.  As for Mhz yes it does matter but in the real world a 2666Mhz and a 3200Mhz wont have any difference, however the latency which is the time it takes for the RAM to talk to mobo and mobo to cpu;  there is only so much information the CPU can work with at a time which is why 2666Mhz and 3200Mhz has no real world performance difference but a lower latency can help thing, alto you wont notice that as well.

i see..i got your point..will rewatch the video i saw later... because as far as i remember the difference is not that big but noticeable..it is tested on games though...it did improve fps.

[Turtle Rig]

10 minutes ago, Ryzn said:

i see..i got your point..will rewatch the video i saw later... because as far as i remember the difference is not that big but noticeable..it is tested on games though...it did improve fps.

Yes maybe 2fps more lol

[nick name]

I can say that my 3600MHz kit didn't run DOCP at 1.35V stable; however, it did POST, boot, and run.  I need about 1.37V to make it run stable.  So perhaps a little more voltage.

 

When you start your PC with DOCP set do you hear your machine trying to POST multiple times?  Trying to complete memory training?  

[Ryzn]

2 minutes ago, nick name said:

I can say that my 3600MHz kit didn't run DOCP at 1.35V stable; however, it did POST, boot, and run.  I need about 1.37V to make it run stable.  So perhaps a little more voltage.

 

When you start your PC with DOCP set do you hear your machine trying to POST multiple times?  Trying to complete memory training?  

nope i didn't hear anything. it just boot up directly in few seconds. will definitely try to set the timings and voltage later during free time. hopefully it will work. 

[Ryzn]

thanks all for your inputs. will update this thread whatever the result is.

[fluxdeity]

25 minutes ago, Ryzn said:

i see..i got your point..will rewatch the video i saw later... because as far as i remember the difference is not that big but noticeable..it is tested on games though...it did improve fps.

Go for 3200 CL14. That's the sweet spot for Ryzen.

[SammyV]

8 hours ago, ReggieGRS said:

Don't G.Skill also have their own QVL ?

Yes, they probably do, however OP did not specify the exact part number for the memory and the timings shown in the image did not correspond to any Trident Z Royal memory kits I could find. So what would be the correct QVL to refer to?

 

13 hours ago, Turtle Rig said:

Can't he manually set it to 3600Mhz or close to it ?

A large number of memory kits listed in Gigabyte's QVLs are listed under headings of the form " # MHz (underclocked to # Mhz) ", which to me gives the impression that not all memory kits are able to reach stable operation at their rated speeds on this board regardless of XMP/D.O.C.P. profiles or manual settings. Gigabyte's QVLs also points out that memory support is dependent on the CPU used (which is why they have separate QVLs for Pinnacle Ridge, Summit Ridge and Raven Ridge). The obvious answer based only on OP's image would be to set BCLK to 100Mhz and run with the 36x multiplier. This may require altering a number of related settings, and I'm hesitant to guess which settings exactly, given my lack of personal experience with Ryzen platforms.