Need help tweaking timings and overclocking Micron E die on Zen+

[Vishera]

So far i managed 3600MHz 14-20-16-36 at 1.46V.

Please keep in mind that the memory controller on Zen+ CPUs is a pain in the butt.

I had to increase the offset voltage of VCore SOC as well for stability.

[Levent]

Read and writes are extremely low for the speeds you are running. Other than that, I dont see anything here anyone can help, there is no question or anything anyone can give input on.

[Vishera]

4 minutes ago, Levent said:

Read and writes are extremely low for the speeds you are running.

That's concerning,but maybe it's the benchmark itself.

I will bench it in AIDA64 and see.

 

  

4 minutes ago, Levent said:

Other than that, I dont see anything here anyone can help, there is no question or anything anyone can give input on.

What can i improve?

[Vishera]

@LeventI just benched the memory with AIDA64,are the read and write speed as they should be?:

[Levent]

Just now, Vishera said:

@LeventI just benched the memory with AIDA64,are the read and write speed as they should be?:

 

Yes those results are where I would expect them to be.

[Vishera]

1 minute ago, Levent said:

Yes those results are where I would expect them to be.

Thanks for the answer,

Much appreciated!

[Vishera]

@LeventAre my voltages fine?

RAM = 1.46V

SOC = 1.2V

CLDO VDDP = 975mv

[Guest]

This is the wrong approach with E-Die.

You want big frequency and will settle for slightly looser timings because they don't scale quite the same as B-Die with additional voltage. 

 

16-18-18-18-38 1.40v or less but at 3733mt/s or higher (closer to 4000mt/s as possible really..)

 

Frequency = bandwidth. 16 to 18 cas latency penalty isn't that big of a deal either. Go more faster'er.

 

Also, Cpu overclock will increase memory bandwidth without having to change any memory settings (food for thoughts) 

[Vishera]

On 9/27/2021 at 12:42 AM, ShrimpBrime said:

This is the wrong approach with E-Die.

You want big frequency and will settle for slightly looser timings because they don't scale quite the same as B-Die with additional voltage. 

 

16-18-18-18-38 1.40v or less but at 3733mt/s or higher (closer to 4000mt/s as possible really..)

 

Frequency = bandwidth. 16 to 18 cas latency penalty isn't that big of a deal either. Go more faster'er.

 

Also, Cpu overclock will increase memory bandwidth without having to change any memory settings (food for thoughts) 

So after lots of testing the memory controller on the CPU is giving me issues.

Any OC above 3466MHz is unstable.

I can boot at higher frequencies  but the OC is an stable no matter how much more voltage i give it.

And overvolting VCORE SOC has no effect at all.

 

So far i can boot at 3800MHz CL16,

I am gonna try 4000MHz next...

 

How can i make the memory controller on the CPU happy and have a stable overclock?

[Guest]

8 minutes ago, Vishera said:

 

 

How can i make the memory controller on the CPU happy and have a stable overclock?

Run it cold honestly. 

 

3800 cl 16 is decent. Not sure that IF will do 4000 though, might have to unlink it.

[Vishera]

58 minutes ago, ShrimpBrime said:

Run it cold honestly. 

 

What do you mean?

Run it cooler?

59 minutes ago, ShrimpBrime said:

3800 cl 16 is decent. Not sure that IF will do 4000 though, might have to unlink it.

You are right,it failed at 4000MHz and i had to clear the CMOS,

Which is an unusual thing since my motherboard tends to remove the RAM overclock automatically after 3 unsuccessful boot attempts.

[Guest]

2 minutes ago, Vishera said:

What do you mean?

Run it cooler?

You are right,it failed at 4000MHz and i had to clear the CMOS,

Which is an unusual thing since my motherboard tends to remove the RAM overclock automatically after 3 unsuccessful boot attempts.

Not cooler.... Cold. Negative Celsius degrees. Like Dry Ice cold. (pick up at local Meijer's grocery stores, Some Walmarts too)

 

Right. 3 attempts for memory failure. Not Infinity Fabric Failure XD>.

[Vishera]

5 minutes ago, ShrimpBrime said:

Not cooler.... Cold. Negative Celsius degrees. Like Dry Ice cold. (pick up at local Meijer's grocery stores, Some Walmarts too)

 

I am trying to max it out on air

5 minutes ago, ShrimpBrime said:

Right. 3 attempts for memory failure. Not Infinity Fabric Failure XD>.

Do you suggest it maybe was an infinity fabric failure? - I mean it makes sense since it's speed is tied to the RAM.

Sorry for the stupid questions

[Guest]

1 minute ago, Vishera said:

I am trying to max it out on air

Do you suggest it maybe was an infinity fabric failure? - I mean it makes sense since it's speed is tied to the RAM.

Sorry for the stupid questions

Stick the case outside in the cold air and see if that helps. (Yes I promote doing crazy stupid cooling ideas if you couldn't tell)

 

Yep. More likely the IF OC halted the board.

[Vishera]

17 minutes ago, ShrimpBrime said:

Stick the case outside in the cold air and see if that helps. (Yes I promote doing crazy stupid cooling ideas if you couldn't tell)

 

I am an overclocking enthusiast myself, I understand it 

19 minutes ago, ShrimpBrime said:

Yep. More likely the IF OC halted the board.

Thanks for the info:)

[Guest]

22 minutes ago, Vishera said:

I am an overclocking enthusiast myself, I understand it 

Thanks for the info:)

Good. You can grab a TEC from e-bay for cheap. I recommend # 12715. But you'll probably want to water cool that one for negative temps. I think they go for like $12 bucks or something like that. You can do all kinds of stuff with them, not just chilling PC parts, you can make pop can coolers out of them. But the above part number is one of the strongest 40mm TECs you can buy.

Welcome  

[Vishera]

I am returning to this thread again

 

On 10/15/2021 at 1:14 AM, ShrimpBrime said:

3800 cl 16 is decent. Not sure that IF will do 4000 though, might have to unlink it.

How do i unlink it on my board?

I have a Gigabyte B450 Gaming X,and i don't see the fclk setting anywhere.

 

 

So i can do 3733MHz CL14,

Is it better than 3800MHz CL16 for performance?

[Guest]

3 hours ago, Vishera said:

I am returning to this thread again

 

How do i unlink it on my board?

I have a Gigabyte B450 Gaming X,and i don't see the fclk setting anywhere.

 

 

So i can do 3733MHz CL14,

Is it better than 3800MHz CL16 for performance?

3 ways - and I might be incorrect....

1. - It will uncouple automaatically

2. - A newer bios revision, it might have been added (unlikely, I'm sure you're up to date...)

3. - Try Ryzen Master.

 

I'd say 3733 CL 14 would be a bit better on latency with similar bandwidth. Against 3800, that is only a 33mhz effective clock difference. (66mhz)

[Vishera]

35 minutes ago, ShrimpBrime said:

It will uncouple automaatically

I have never seen it happening with this board,

And it doesn't do that when i need it to so that one probably doesn't happen with my board.

35 minutes ago, ShrimpBrime said:

A newer bios revision, it might have been added (unlikely, I'm sure you're up to date...)

It's possible,i am using a 3 years old BIOS version

35 minutes ago, ShrimpBrime said:

Try Ryzen Master.

It's very buggy on my system,probably because AMD focuses on the newer stuff and doesn't test it on older hardware any more.

 

35 minutes ago, ShrimpBrime said:

3 ways - and I might be incorrect....

Seems like i only have one way and it may end up not working

 

35 minutes ago, ShrimpBrime said:

I'd say 3733 CL 14 would be a bit better on latency with similar bandwidth. Against 3800, that is only a 33mhz effective clock difference. (66mhz)

Just is i thought

[Guest]

I'd say shoot for a bios update. Ryzen mater might be better after than and a chipset driver update.

 

Used it with my B450-I rog board. Seems to work pretty good.

[Vishera]

15 minutes ago, ShrimpBrime said:

I'd say shoot for a bios update. Ryzen mater might be better after than and a chipset driver update.

 

Used it with my B450-I rog board. Seems to work pretty good.

Considering how much testing i will need to do to make sure that everything is working as intended,i will pass for now

Thanks for the help