[SOLVED] (Solved) Issue with RAM slots A2 & B2 after upgrading the CPU ?

[MoroMoro]

Hello 👋.
I'm currently facing an odd issue, which I have already tried some fixes for.
Though I am not going to ignore any suggestions or possible answers to this issue.

Issue: after upgrading my CPU from a used Ryzen 7 1700 to a used Ryzen 3700X, I cannot use RAM slots A2 and B2. I have 2 x 8GB RAM sticks in slots a1 and b1.
The system runs fine like that, in fact I can't tell any difference, but I would like to resolve this issue.

Here are some things I have tried:

• Changing BIOS to an older version.
• Re-seating RAM and swapping there positions.
• Cleared CMOS every time.

What I haven't tried
Re-seating the CPU. (Saw something online about that)

System specs:
CPU: Ryzen 7 3700X (used)
GPU: RX 570 8GB
RAM: 2 x 8GB DDR4 2400hz
PSU: 600w
SSDs

 

[Ralston18]

Make and model motherboard?

Some motherboards require that the first physically installed RAM be placed in a specific RAM slot.

Typically DIMMA2.

Check the applicable motherboard's User Guide/Manual for any such requirement and also pay close attention to any other Notes regarding RAM installation and configuration.

 

[MoroMoro]

Make and model motherboard?

Some motherboards require that the first physically installed RAM be placed in a specific RAM slot.

Typically DIMMA2.

Check the applicable motherboard's User Guide/Manual for any such requirement and also pay close attention to any other Notes regarding RAM installation and configuration.

Hello, thanks for taking your time aside to help me. I appreciate it!

It's an old board, also used when I bought it.
Asrock ab350m pro4,
It was fine when I was using the 1700.
Edit*: by that, I meant the dual channel setup was working prior to this headache.

After looking around the web for a bit, it might really be the cpu not being seated properly or if the cooler is too tight, I'll give that a try in a bit.

 

[SkyNetRising]

Issue: after upgrading my CPU from a used Ryzen 7 1700 to a used Ryzen 3700X, I cannot use RAM slots A2 and B2. I have 2 x 8GB RAM sticks in slots a1 and b1.

Check your used Ryzen 3700X and see, if it's not missing some cpu pins.

 

[MoroMoro]

Check your used Ryzen 3700X and see, if it's not missing some cpu pins.

Thank you as well, for taking the time to help me.
I will do that, and report back in a bit.

 

[MoroMoro]

Check your used Ryzen 3700X and see, if it's not missing some cpu pins.

https://ibb.co/dcvq3nv

No visible bent pins

 

[SkyNetRising]

I couldn't spot any missing/bent pins.
Usually you have to look from different angles to spot them.

Anyway - if your system works fine with ram modules in A1, B1 slots,
this is perfectly fine configuration for dual channel memory operation.
There should be no difference in performance compared to A2, B2 configuration.

 

[MoroMoro]

I couldn't spot any missing/bent pins.
Usually you have to look from different angles to spot them.

Anyway - if your system works fine with ram modules in A1, B1 slots,
this is perfectly fine configuration for dual channel memory operation.
There should be no difference in performance compared to A2, B2 configuration.

I will keep trying different things, till then, I'll leave this as unsolved? I am unsure.

 

[Bob.B]

I will keep trying different things, till then, I'll leave this as unsolved? I am unsure.

If you install the old cpu back into the mobo does the ram now function correct?

If so that would seem to point to the new cpu having a problem.

Your call if you want to chase it or just use the a1 + b1 slots.

 

[MoroMoro]

If you install the old cpu back into the mobo does the ram now function correct?

If so that would seem to point to the new cpu having a problem.

Your call if you want to chase it or just use the a1 + b1 slots.

I'd rather not. Everything I need works just fine. I will just mark this as 'solved'