New build RAM and boot issues

[klotza1]

Put together my new computer today, and am running into a some issues booting with all 4 ram sticks populated.

 

MB: MSI PRO Z690-A DDR4 (Latest Bios 1.70)   NEW

RAM: 2x Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz   (leftover from previous 6700k build)

CPU: Intel 12600k  NEW

Cooler: MSI MAG240 water cooler

PSU: EVGA 750 GQ, 80+ GOLD

GPU: MSI Geforce RTX 2080

 

When attempting to boot with all 4 dims populated i get a solid yellow light on the "DRAM" error code light and no display.

If i remove two, from any position i am sometimes able to boot after a few seconds.

I have taken each ram stick and inserted them solo and booted to the bios. So all of them seem work individually.

CPU removed and no bent pins found. Re-seated and clamped down.

 

Weird Part: If i sit there and flick the PSU power switch on and off for a while. eventually i see it flip back and forth between the "CPU" and "DRAM" lights (memory training?) and sometimes, it boots to windows with all memory accounted for.

 

Long story short, i seemingly cant shut my computer off and turn it back on without having to tear it apart and troubleshoot an unknown issue. I'm writing this message on it at the moment. Does this sound like a bad board, bad ram, or something else. It's not my first rodeo but i am stumped.

 

Thanks

 

 

 

[DonDroid]

I am not sure how to read your Ram section to you use two different brands/pairs of RAM?

If so, that might be the problem when trying to boot with all four. 

But usally you should be able to Boot with one pair at a time without a problem.

What do you mean with sometimes able after a few seconds? You can boot and after shutting down it is not safe that it will boot again?

[klotza1]

All of the memory is exactly the same. I bought 2 sets of the same thing 2x8gb. Total of 32gb across all 4.

Example: Any combination of memory in A2 + B2 slots will boot. But all 4 causes a hangup. Thats when i see the solid yellow "DRAM" indicator on the board.

I have no idea why, but after flicking the PSU power on and off for a while it sometimes works. (maybe 1 out of 10 times)

[DonDroid]

Did you try A1 B1? 

 

[klotza1]

Yes the issue only seems to arise when trying to use all 4 memory slots at once. I'm currently using the computer with only 2 sticks of ram to communicate but i'd like to install all 4 and not have issues POST'ing on a constant basis. Time is running low to return any of the new hardware so im trying to get any info i can

[DonDroid]

You could Memtest the Sticks to make sure they are fine.

Also maybe your Bios changes to some weird settings with all 4 slots but i do not know how you would check when they won't even POST to be honest.

[DonDroid]

https://forums.tomshardware.com/threads/amd-ram-compatibility.3210050/post-19785792

 

This might be interesting as well. As long as you are not already working with old and new mixed. 

 

[klotza1]

2 minutes ago, DonDroid said:

https://forums.tomshardware.com/threads/amd-ram-compatibility.3210050/post-19785792

 

This might be interesting as well. As long as you are not already working with old and new mixed. 

 

Seems to be an AMD discussion and not really relevant to my issue. 

[DonDroid]

6 minutes ago, klotza1 said:

Seems to be an AMD discussion and not really relevant to my issue. 

 

Quoted out of: https://forums.tomshardware.com/threads/amd-ram-compatibility.3210050/post-19785792 :

 

It's true that a lot of the time you CAN mix and match RAM and so long as you keep the module selection limited to models with fairly similar or nearly exact specs, they will play nice together. Even, sometimes, completely disparate modules will do so with one module having it's primary settings adjusted by the system to match the other, lower clocked module. This is NOT always the case however AND instances of memory that are not identical or in fact even MATCHED and TESTED to work together, not working together, have been on the rise since the introduction of DDR4. At least from what I have seen through my own experience using them on builds and from what I've seen here in addition to what I've read at a number of different places including reviews and other forums.

The biggest problem, I think, is that companies like G.Skill, Corsair, Kingston, etc., do not actually make the memory chips used on their modules and they tend to source those ICs from a variety of different places, even on some of their highest end offerings. Buying another memory module later on that is the EXACT SAME part number is NO guarantee that you will be getting either an identical module or even one that is close to the same. For example, in the image below you can see that although the two lower pictured items have the same exact part number, having likely been part of different production runs that completely changed up the configuration of the modules, they do not use the same size IC, the same brand of IC, the IC are ranked differently and one module is single sided while the other has ICs on both sides.

 

End of Quote

 

Yes the discussion started on a AMD platform but the stated problem is not AMD exclusive.

 

 

Again: did you use old and new mixed or did you just try 2 old and 2 new in the respective channels.
 

[klotza1]

14 minutes ago, DonDroid said:

 

Quoted out of: https://forums.tomshardware.com/threads/amd-ram-compatibility.3210050/post-19785792 :

 

It's true that a lot of the time you CAN mix and match RAM and so long as you keep the module selection limited to models with fairly similar or nearly exact specs, they will play nice together. Even, sometimes, completely disparate modules will do so with one module having it's primary settings adjusted by the system to match the other, lower clocked module. This is NOT always the case however AND instances of memory that are not identical or in fact even MATCHED and TESTED to work together, not working together, have been on the rise since the introduction of DDR4. At least from what I have seen through my own experience using them on builds and from what I've seen here in addition to what I've read at a number of different places including reviews and other forums.

The biggest problem, I think, is that companies like G.Skill, Corsair, Kingston, etc., do not actually make the memory chips used on their modules and they tend to source those ICs from a variety of different places, even on some of their highest end offerings. Buying another memory module later on that is the EXACT SAME part number is NO guarantee that you will be getting either an identical module or even one that is close to the same. For example, in the image below you can see that although the two lower pictured items have the same exact part number, having likely been part of different production runs that completely changed up the configuration of the modules, they do not use the same size IC, the same brand of IC, the IC are ranked differently and one module is single sided while the other has ICs on both sides.

 

End of Quote

 

Yes the discussion started on a AMD platform but the stated problem is not AMD exclusive.

 

 

Again: did you use old and new mixed or did you just try 2 old and 2 new in the respective channels.
 

All 4 memory modules were purchased at the exact same time. They should be identical. No they aren't a set of 4. It was two packs of 2x8gb modules from corsair.

[DonDroid]

RAM: 2x Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz   (leftover from previous 6700k build)

 

Now that makes a lot more sense. I thought you had bought two more of the same sticks due to the word leftover. Sorry i am not a native so sometimes i dont get the exact point

 

Alright than its absolutely useless. 

 

But that also means that they run fine before, which means it is very unlikely that they are broken. 

 

So, it could be some kind of issue within the Bios settings.

I guess you did already reset it?

You could also try and set the two sticks to a slower Speed in your BIOS shut it down again and try to Boot with all four. 

[klotza1]

They run at 2133mhz by default. I tried that and then I tried the XMP profile which jumps up to 3000mhz. Did not seem to help. 

[DonDroid]

so what is the exact part number of your ram ? 

CM something i guess

[klotza1]

Bump. 
 

Pc still failing to post about 70% of the time with all ram installed. Should I be looking to replace the brand new board?

[klotza1]

Turns out one of my ram sticks was either going bad or already bad. Cycled through them all once again last night and found the bad one and removed it and it’s match. Memory is now half but at least the system is posting and working.