[SOLVED] (Prime x370-pro) Only booting with a single ram stick installed

[thekal21]

So i bourght another stick of ram, and was expecting it to go smooth.. It did not - far from.

When i installed it it initially (B1, B2, colorcoded) worked fine, and the extra ram showed up in system specs.
I then started getting BSOD WHEA-code.

I uninstalled the ramstick again, and it ran stable.
I reinstalled it again and it started giving me 1 long and 2 short beeps.

I have tried all configurations of the ram sloats, single/dual 1 through 4 - both ram sticks work fine with only a single stick installed..

I cannot boot without a single stick in slot 2 - i get the same beep codes.
And to test i tried booting with no ram, and same beep code.

Should it boot normaly if i only run a single stick in say slot 4?


(I tried finding my ram sticks in the QVL, and they are not there - but the pc was built by a very proffesional company, so i trust they know what they´re doing.
Maybe QVL problems wont show untill dual stick is used :? that would be wierd no?)


I am now thinking it is the dimm slots that are fried as only slot 2 is succesfull in booting (I just think its really wierd that only 3 dimm slots would fry..)

Is there a way to test dimm slots?
Is something needed to be turned on in BIOS to detect dual? (i wouldent think so)
Should i get a new motherboard?
Anything else i can do?


BIOS 5220 (latest)
Operating System: Windows 10 build 18363 (64-bit)
CPU Type: AMD Ryzen 7 1700X Eight-Core
Number of CPUs: 1
Cores per CPU: 8
Hyperthreading: Not capable
Motherboard: PRIME X370-PRO
Memory: 16GB Corsair CMK16GX4M1A2400C14 (both are same model, one is newer version)
Videocard: NVIDIA GeForce GTX 1070

 

[Deleted member 1272431]

Memory: 16GB Corsair CMK16GX4M1A2400C14 (both are same model, one is newer version)

What do you mean newer model? Are specs exactly the same?
Also, have you checked CPU compatibility?
Your CPU accepts DDR4, 2666MHz while you are using 2400MHz it seems...

 

[thekal21]

What do you mean newer model? Are specs exactly the same?

The ram sticks are the same model and brand. Only the version number is higher on the new one.

Also, have you checked CPU compatibility?

The 1700x CPU has been working for a couple years with no issue with the same ram.

Your CPU accepts DDR4, 2666MHz while you are using 2400MHz it seems...

Im just using the default BIOS settings. When i use two sticks i dont even post, so wouldent be able to change it anyway.
Surely you can use the stock speed without issues?

 

[Deleted member 1272431]

I don't believe you can change RAM speed. If it is not supported, system won't boot.

 

[thekal21]

The question wasent about ram speeds.

Anyone who can assist?

 

[thekal21]

Fixed and working

Reseated the CPU multiple times, and then suddenly it worked, and is now detecting all the RAM sticks.

I´m thinking maybe CPU Cooler screws were to tight or to loose.

Hope it helps someone in the future.