RAM crashing when set to 3600MHz

[Jester196]

Hi all,

 

I have recently built a new rig and got Corsair Vengeance Pro 16GB of DDR4 3600MHZ. When I first booted up noticed it was running at 2166MHZ so I went into the BIOS and enabled D.O.C.P.

 

I first tried setting it to 3600MHz but it crashed so I've lowered the speed incrementally until it stopped crashing at 3200MHz.

 

I was just wondering why I can't get it stable at the speed it says on the pack? I have it paired with a Ryzen 9 3900XT and an ASUS Strix X570-F Motherboard.

 

Any help will be appreciated.

[Haro]

first of all, make sure they're in slot 2 and 4. 

then set the soc to 1.1 and dram to 1.35, go for 3200 with docp enabled and check. if that work.

go for 3600 with docp and check if that's stable.

[Chris Pratt]

2 minutes ago, Duncster96 said:

When I first booted up noticed it was running at 2166MHZ so I went into the BIOS and enabled D.O.C.P.

 

I first tried setting it to 3600MHz but it crashed so I've lowered the speed incrementally until it stopped crashing at 3200MHz.

 Which is it? Did you enable DOCP or manually set it to 3600Mhz?

[Jester196]

33 minutes ago, Chris Pratt said:

 Which is it? Did you enable DOCP or manually set it to 3600Mhz?

Well when I enable D.O.C.P it allows me to change the speed? Or am I missing something. I'm new to this with RAM. This is my first new build in 5 years.

[Jester196]

35 minutes ago, TofuHaroto said:

first of all, make sure they're in slot 2 and 4. 

then set the soc to 1.1 and dram to 1.35, go for 3200 with docp enabled and check. if that work.

go for 3600 with docp and check if that's stable.

Ahh, I have them in slots 1 and 3 just now. I'll try moving them tomorrow. I'm trying to get my head around all of this. This is my first new build in quite a while and all of this is new to me. Thanks for the advice 

[Chris Pratt]

9 minutes ago, Duncster96 said:

Well when I enable D.O.C.P it allows me to change the speed? Or am I missing something. I'm new to this with RAM. This is my first new build in 5 years.

When you enable DOCP, you shouldn't have to change the speed. It may be editable, but it should already be set to 3600. That's what was confusing me. What did it say before you changed it?

[nick name]

8 minutes ago, Duncster96 said:

Ahh, I have them in slots 1 and 3 just now. I'll try moving them tomorrow. I'm trying to get my head around all of this. This is my first new build in quite a while and all of this is new to me. Thanks for the advice 

Changing slots will likely cure you problem.

 

And a way to think about XMP/DOCP is as something of a preset.  When enabled ot makes some changes in BIOS for you, but you can still then change those settings on your own.  Something to note is that DOCP doesn't set all XMP settings.  At least from what I've seen on ASUS boards.  It sets speed, DRAM voltage, tCL, tRCD, tRP, tRAS -- though it doesn't set tRC, tRRDS, tRRDL, tFAW, tRFC that is included in the XMP.  

[Nena Trinity]

1 hour ago, TofuHaroto said:

first of all, make sure they're in slot 2 and 4.

Why does the slots matter?

[Haro]

8 hours ago, Nena Trinity said:

Why does the slots matter?

Because of the topology on the board. 

[Nena Trinity]

3 hours ago, TofuHaroto said:

Because of the topology on the board. 

Are you saying aboard may hit higher MHz if using 2 & 4 vs 1 & 3?

[Haro]

10 hours ago, Nena Trinity said:

Are you saying aboard may hit higher MHz if using 2 & 4 vs 1 & 3?

yes, for example, a T-topology board is usually terrible for 2 sticks setups, and it's amazing if you fill all 4 dimms, daisy chain works pretty good in slot 2 and 4 afaik.

[Jester196]

On 8/12/2020 at 9:09 PM, TofuHaroto said:

first of all, make sure they're in slot 2 and 4. 

then set the soc to 1.1 and dram to 1.35, go for 3200 with docp enabled and check. if that work.

go for 3600 with docp and check if that's stable.

Hey man, 

 

I moved the RAM into slots 2 and 4 and the problem is fixed. System is running stable at 3600MHz. Thanks a lot for your help with this.

 

 

[voldy]

On 8/14/2020 at 6:12 AM, Duncster96 said:

Hey man, 

 

I moved the RAM into slots 2 and 4 and the problem is fixed. System is running stable at 3600MHz. Thanks a lot for your help with this.

If all 4 slots are filled, does anyone know if the original issue arises, in which the RAM cannot reach 3600 MHz?

 

EDIT: My mistake, I just saw TofuHaroto's post above

Edited September 29, 2020 by voldy

[Dilliebar]

Hello, I’m having the same problem except I have 4 sticks of Hyper X 8GB 3600MHz RAM. So moving them around won’t do anything? 
 

Everything seems to work fine in windows but when I play call of duty it just freezes and I have to restart the PC at 3600MHz.
 

Asus X570 E Gaming

Ryzen 3800XT

Asus ROG STRIX 1080

 

This is my first build so any help would be great!