Team Group Dark Pro "8 Pack Edition" 16GB (2x8GB) DDR4 PC4-25600C14 3200MHz Dual Channel Kit - Black

Lolik said:
ryzen 3700x on b350 stock xmp 3200 cl 14-14-14-31-97 1.35v
T4lPC71.png

1900 fclk 3800 cl 16-16-16-36-50 1.44v
e6YgehH.png

My first ever attempt at ram oc, just dunno what voltages and timings ppl run these things with ( browsing through the pages of this thread atm).
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ideally what you want to see is 4x000 MB/sec read and similar for write. 25000 in the write box probably means an unstable OC.
 
@Illuminist Let us know how you get on.

Everything I wrote yesterday applies but you probably want to first find out if your chip can do more than 1800 FCLK. As I said yesterday, put everything back to stock in the BIOS leave your ram at it's lowest stock frequency and then increase the FCLK to 1900 save and boot in to windows.

You will find a speed from 1900 - 1800 that Windows is happy in. If 1900 works with no issues at all then that would mean you can set your ram speed to 3800MHz.

Everything I wrote above now applies to 3800MHz.

Same ram timings, 1.4v dram and 1.11v SOC.

May ram can do 3733MHz with no issues, the problem is my FCLK tops out at 1800, which means I have to run it at 3600MHz in order to run it in a 1:1 configuration.

---

Depending on how you go, you may or may not need to adjust voltages further but this is as far as I've got.

As you can see from @Lolik screen shots he has put 1.44v through his ram for 3800MHz.
 
Besty said:
ideally what you want to see is 4x000 MB/sec read and similar for write. 25000 in the write box probably means an unstable OC.
Click to expand...
25k normal for 1 ccd ryzens3000:
In short, the pathway from the chiplet to the memory controller for the write data has been cut in half. This explains why it wasn’t noticeable when testing the Ryzen 9 3900X since it has two pathways to the controller, one from each chiplet so the results appeared normal. It was apparent from all the testing that this decision on the part of AMD had no noticeable effect on expected performance.

opethdisciple said:
@Illuminist Let us know how you get on.

Everything I wrote yesterday applies but you probably want to first find out if your chip can do more than 1800 FCLK. As I said yesterday, put everything back to stock in the BIOS leave your ram at it's lowest stock frequency and then increase the FCLK to 1900 save and boot in to windows.

You will find a speed from 1900 - 1800 that Windows is happy in. If 1900 works with no issues at all then that would mean you can set your ram speed to 3800MHz.

Everything I wrote above now applies to 3800MHz.

Same ram timings, 1.4v dram and 1.11v SOC.

May ram can do 3733MHz with no issues, the problem is my FCLK tops out at 1800, which means I have to run it at 3600MHz in order to run it in a 1:1 configuration.

---

Depending on how you go, you may or may not need to adjust voltages further but this is as far as I've got.

As you can see from @Lolik screen shots he has put 1.44v through his ram for 3800MHz.
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Second that, FCLK limit first thing to do (sound bugs will show if too high), mine wasn't stable at 1900, but seems to be ok with 1866 atm (16-15-15-28-42-302). Voltages wise 8pack mentions 1.5 as safe somewhere in the thread earlier (internet recons 1.45 safe), not to overdo it with the ryzen master is the biggest challenge :p
 
@Illuminist

Update.

Everything that has been said yesterday still stands. Work out your FCLK first and then work form there.

For 3600MHz on the ram I think 1.35v is OK. AMD's own recommendation when it comes to ram / FCLK overclocking is put both SOC and VDDG to 1.1v

This is what I've done and things at least for a round of BFV seem OK.

If I get instability then I will need to raise the voltages a little.
 
opethdisciple said:
@Illuminist

Update.

Everything that has been said yesterday still stands. Work out your FCLK first and then work form there.

For 3600MHz on the ram I think 1.35v is OK. AMD's own recommendation when it comes to ram / FCLK overclocking is put both SOC and VDDG to 1.1v

This is what I've done and things at least for a round of BFV seem OK.

If I get instability then I will need to raise the voltages a little.
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Thanks for all this, I won't get my new motherboard until Tuesday, so i will come back to this then and tell you how it goes
 
Any one have suggestions for tightening my timings at 3600MHz?

I have it working at 16 16 16 16 36 @ 3600MHz @ 1.35v

But have no idea how to make better.

I tried 14 14 14 14 31 @ 3600MHz @ 1.45v. I can get the PC to post but then Windows blue screens.
 
opethdisciple said:
Any one have suggestions for tightening my timings at 3600MHz?

I have it working at 16 16 16 16 36 @ 3600MHz @ 1.35v

But have no idea how to make better.

I tried 14 14 14 14 31 @ 3600MHz @ 1.45v. I can get the PC to post but then Windows blue screens.
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It could be worth lowering your VRAM mine didn't pass memtest at 15.15.15.15.30 1.45v but was fine at 1.425v, I'm currently running it at 1.4v (yet to memtest) so more voltage isn't necessarily the key for stability.
 
PieEater said:
It could be worth lowering your VRAM mine didn't pass memtest at 15.15.15.15.30 1.45v but was fine at 1.425v, I'm currently running it at 1.4v (yet to memtest) so more voltage isn't necessarily the key for stability.
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I have a problem where it is automatically changing the timings from 15.15.15.15.30 to 16.15.15.15.30. I see this n the BIOS and in AIDA64.
 
opethdisciple said:
I have a problem where it is automatically changing the timings from 15.15.15.15.30 to 16.15.15.15.30. I see this n the BIOS and in AIDA64.
Click to expand...
Just checked and I get the same, I can change CAS to 14 and the rest stay at 15, with CAS at 16 the system was stable with VRAM @ 1.4v but it needed VRAM @ 1.425v to boot at CAS14, currently memtesting at 3600 14.15.15.15.30 @ 1.425v and looking good so far.
 
PieEater said:
Just checked and I get the same, I can change CAS to 14 and the rest stay at 15, with CAS at 16 the system was stable with VRAM @ 1.4v but it needed VRAM @ 1.425v to boot at CAS14, currently memtesting at 14.15.15.15.30 @ 1.425v and looking good so far.
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Interesting. What is your latency with these settings?
 
I found this. But it makes no sense at all.

Why?

Well take these primary timings 16 16 16 16 36 and apply the logic the article.

He only discusses sets of timings.... tCL-tRCD-tRP-tRAS

Of maybe the article is just too old?
 
Got round to doing my sub-timings which I based on the latest version of the Ryzen calculator, Latency has dropped to 66.7ns (from 69.7ns), Read has increased to 53000 (from 50500), Write has stayed the same at 28786, and Copy has increased to 51000 (from 49200). Hopefully these will help someone;

48496297091_14628e915d_o.jpg

Key;
Blue - I has already found that these were the best primary timings I could achieve so left as is.
Green - These figures are the same for both SAFE and FAST in the calculator so should be fine for all.
Red - These figures are taken from the FAST list and differ from the SAFE list so may not work for all.
Purple - PDMode & GDMode wouldn't let the PC boot on disabled for me (FAST) so I put them back to Auto which I assume is enabled (SAFE).

EDIT: RAM Passed quick memtest included in the calculator but has just failed a longer standard memtest at 1.44v and failed at 1.45v & 1.46v so have dropped the FAST timings (Red) to SAFE and am re-running the memtest, will update with the stable settings once I've confirmed.

UPDATE: Can confirm that throwing additional volts at this RAM does not necessarily equal stability in fact from personal experience Memtest will fail much sooner at 1.46v than at 1.44v on the same settings. Currently testing a block of 4 settings at a time to see if I can figure out what is causing the instability as even on the SAFE settings I was unable to pass a full 100% run on Memtest.

Update #2: See Post 944 for Memtest stable settings.
 
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PieEater said:
Got round to doing my sub-timings which I based on the latest version of the Ryzen calculator, Latency has dropped to 66.7ns (from 69.7ns), Read has increased to 53000 (from 50500), Write has stayed the same at 28786, and Copy has increased to 51000 (from 49200). Hopefully these will help someone;

48496297091_14628e915d_o.jpg

Key;
Blue - I has already found that these were the best primary timings I could achieve so left as is.
Green - These figures are the same for both SAFE and FAST in the calculator so should be fine for all.
Red - These figures are taken from the FAST list and differ from the SAFE list so may not work for all.
Purple - PDMode & GDMode wouldn't let the PC boot on disabled for me (FAST) so I put them back to Auto which I assume is enabled (SAFE).
Click to expand...

Cheers. Will try these later.
 
I just installed a 3700x which is paired with my X470-I. Could someone post the best settings for this RAM? I tried the settings I had with 2700x (14-14-14-36 1T) but system wouldn't boot. 2700x settings in spoiler:

6GByRzB.png

I'm just looking for something easy and guaranteed.

TIA
 
opethdisciple said:
OK... so the same as mine then! That's a good start. You should be able to get the same speed as me.

What I've done is the following:

I turned on DOCP (but probably unnecessary considering we are going to over ride the settings)

For now set the following:

Set the ram frequency to 3600MHz
Set the timings to 16 16 16 16 36
Set the FCLK to 1800MHz
Set the DRAM voltage to 1.4v
Set the SOC 1.11v

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A few points to note. If your PC is like mine it wont be able to boot these timings.

For the very first time (not every boot) I have to go up the speed slowly.

So with everything above set, reduce your frequency to something low like 2400MHz.

Save and exit BIOS. The PC should post successfully, go back in to the BIOS and up the frequency of the ram to 2800MHz, then 3200Mhz then try 3600MHz.

That's what I have to do every time the BIOS gets reset (if I'm tinkering again)

You wont have to do this every time the PC boots just the first time or when ever it gets reset to stock.

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A few more notes.

The voltage of 1.4v on the dram MAY be unnecessary. Not harmful but the ram maybe able to run at 1.35v which is what I intend on finding out.

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Other than that you should be good.
Click to expand...

This worked for me, thanks. :)
 
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