Ryzen 3000 Infinity Fabric Overclocking, and Voltages

Minstadave said:
Yup, set IF at 1600 and RAM at 3200.
Click to expand...

Thanks mate. Just set that. All running good. Cinebench scores are better :D

Have you seen this? Supposed to be from someone at AMD:

https://www.reddit.com/r/Amd/commen...0_series/?utm_source=share&utm_medium=ios_app

He says Ryzen 3 you can clock higher on the IF.

3: The IF clock is also independently controllable on 3rd Gen Ryzen. Want to try that sweet 1800MHz Infinity Fabric, but don't have DDR4-3600? That's fine. You can put it there manually--it's adjustable in 33MHz jumps.
Click to expand...
 
Watch the second video I posted on post #2 on this thread, according to his testing there are gains to be had if you can run IF at 200 Mhz higher than your memory clocks i.e. your 3200 memory will be running at 1600Mhz so an IF of 1800Mhz is 200Mhz different and should offer some performance gains.
 
I have a quick question.

In order for me to get a stable 1900mhz IF on my 3700x. I have had to set my SOC Voltage to 1.14v. My VDDG voltages are set to 1v and 1.1v. Will these settings damage my cpu?
 
1.20v is generally considered the safe upper limits for SOC so you are comfortably within that. I don't know enopugh about VDDG to advise, I leave mine on auto.
 
opethdisciple said:
I'll be keeping an eye on this thread but I don't think any amount of voltage will get me beyond 1800MHz FCLK.

But I'm happy enough as it is. Pushing for more whether that's more raw speed or faster timings I doubt will win me much in terms of FPS in gaming titles.

An FCLK of 1800MHz and a ram frequency of 3600MHz CL16 is plenty.
Click to expand...

You said a year ago and now we are at CL14. :D
 
Ohh... this is the thread I need:

I found out yesterday that if I push my SOC voltage to 1.2v I can run an FCLK of 1900. I didn't like the dram calc timings I tried though. Mostly CL16 and my score in the default bench of 250 was worse than my 3600CL14 of 221.

I'm not sure 1900 is doable even if it seems stable because I was finding the mouse and keyboard where sometimes becoming unresponsive.

Dropping to 1867 was better but still didn't like the scores I was getting from the default bench mark.

I can find loads of articles on line, including from Corsair and Gigabyte saying 1.2v on the Soc is the upper limit of safe but is that really true? I'm quite sure I read once that there is a thing with the X570 boards where if you go over a certain threshold with Soc voltage you get PCI-E 4 issues and for sure 1.2v on the Soc is well over that threshold.

So do you say, stick with my fast and easy 3600CL14 or spend the time to find out where I'm at at 3800MHz and 3733MHz using up to 1.2v on the SOC?

Also do I need to play with the VDDG and VDDP voltages, I couldn't discern if they where actually making a difference or not when I was increasing them compared to just stock.
 
opethdisciple said:
Ohh... this is the thread I need:

I found out yesterday that if I push my SOC voltage to 1.2v I can run an FCLK of 1900. I didn't like the dram calc timings I tried though. Mostly CL16 and my score in the default bench of 250 was worse than my 3600CL14 of 221.

I'm not sure 1900 is doable even if it seems stable because I was finding the mouse and keyboard where sometimes becoming unresponsive.

Dropping to 1867 was better but still didn't like the scores I was getting from the default bench mark.

I can find loads of articles on line, including from Corsair and Gigabyte saying 1.2v on the Soc is the upper limit of safe but is that really true? I'm quite sure I read once that there is a thing with the X570 boards where if you go over a certain threshold with Soc voltage you get PCI-E 4 issues and for sure 1.2v on the Soc is well over that threshold.

So do you say, stick with my fast and easy 3600CL14 or spend the time to find out where I'm at at 3800MHz and 3733MHz using up to 1.2v on the SOC?

Also do I need to play with the VDDG and VDDP voltages, I couldn't discern if they where actually making a difference or not when I was increasing them compared to just stock.
Click to expand...
It's probably not stable with a score that high and would explain why some stuff stops working. Have you tried running prime or aida 64 to test the fabric stability because memtest doesn't always pick it up?.

Another thing to consider is running that much voltage through the soc may create extra heat and lower boost clocks slightly.
 
Joxeon said:
It's probably not stable with a score that high and would explain why some stuff stops working. Have you tried running prime or aida 64 to test the fabric stability because memtest doesn't always pick it up?.

Another thing to consider is running that much voltage through the soc may create extra heat and lower boost clocks slightly.
Click to expand...

Yes. I'm probably going to give up because I am not comfortable pushing that much voltage through the SOC.
 
My system is weird, it ran fine for the last 2 days t 1900/3800 then this morning refused to boot at that. I tried 1800/3600CL14 today instead which was going well but COD:MW crashed twice.

Now I'm running at 1833/3666 and it's stable so far.
 
Nick1881 said:
My system is weird, it ran fine for the last 2 days t 1900/3800 then this morning refused to boot at that. I tried 1800/3600CL14 today instead which was going well but COD:MW crashed twice.

Now I'm running at 1833/3666 and it's stable so far.
Click to expand...
probably just need a bit more Dram voltage.
 
Nick1881 said:
The product page for my 32Gb kit says Tested Voltages: 1.20 - 1.40 V where the ripped edition ones say 1.40 - 1.50 V
Click to expand...
My 3200/14 kit says 1.20-1.40v yet 8pack himself has said these are fine up to 1.5v daily hence why i'm running them 3800/14@ 1.49v.

8 Pack said:
For 24-7 1.5v is fine on Samsung IC. Heat spreaders are also only for looks no cooling is needed.
Click to expand...
 
Last edited:
Do the later Agesa updates have better support for higher infinity fabric? I suspect so, not messed about with Ram since last November, now on 1.0.0.8 seems like I can go higher, posting 3800mhz Ram 1:1 was no problem which Ive never done before and my ryzen 3600 used to have issues at 1800 and 1867 IF where I would get stutters and audio pops but now seems ok (not tested long enough to be sure).

Also noticed no need to adjust VDDP/G and SOC etc as Gigabyte board will change all the settings for you depending on Ram speed, it used to auto 1/1.05 for VDDP/G regardless of speed.
 
You must log in or register to reply here.
Back
Top Bottom