Question Why is system crashing after installing new RAM?

[Tony_186]

First I'm going to give you some details about my pc. I have a Ryzen 5 2400g on an ASUS a320m-k motherboard and previously had installed 1x G.skill aegis f4 3000 8gb and 1x Crucial 2133 8gb. I wanted to upgrade my RAM and since the previous Aegis stick worked decided to get a kit 32gb f4 3000 2x16gb.

Now my pc is crashing with multiple different configs(lowered the clock to 2666mhz, disabled DOCP(xmp)).

What would cause this and is there a fix.

I am aware that on the official site of gskill it states that this kit only supported by ryzen 3rd gen and up, but a stick of the same line worked just fine before.

Thanks!

 

[LinuxDevice]

You shouldn't mix RAM of different timings or sizes (not necessarily an issue in your case). As soon as this happens you must go to single channel mode (a huge performance drop over dual channel) and you would need to avoid using the XMP speeds. When you have two sticks of RAM shipped in a single package there is a finer match of timings than if you buy two separate sticks of RAM advertised as the same exact thing. The only time two or more sticks of RAM are actually guaranteed to have a close enough match to work at full speed and timings is when they ship in the same package. Thus this question: Were both of the two 16 GB sticks from a single package? It sounds like they might be, so this might not be a problem, although one would normally start with XMP off and then turn it on later when it appears to be working.

The other issue is that if your motherboard is old enough the BIOS might not support this much RAM. I don't know. I suggest looking up the available BIOS updates, and closely look at the docs regarding how much RAM and what clock speeds the updates work with. This is probably the best case scenario since a BIOS update would solve the problem.

 

[Tony_186]

You shouldn't mix RAM of different timings or sizes (not necessarily an issue in your case). As soon as this happens you must go to single channel mode (a huge performance drop over dual channel) and you would need to avoid using the XMP speeds. When you have two sticks of RAM shipped in a single package there is a finer match of timings than if you buy two separate sticks of RAM advertised as the same exact thing. The only time two or more sticks of RAM are actually guaranteed to have a close enough match to work at full speed and timings is when they ship in the same package. Thus this question: Were both of the two 16 GB sticks from a single package? It sounds like they might be, so this might not be a problem, although one would normally start with XMP off and then turn it on later when it appears to be working.

The other issue is that if your motherboard is old enough the BIOS might not support this much RAM. I don't know. I suggest looking up the available BIOS updates, and closely look at the docs regarding how much RAM and what clock speeds the updates work with. This is probably the best case scenario since a BIOS update would solve the problem.

As I said before the specific kit of F-3000C16D-32GISB(single package 2x16gb) isn't supported by Ryzen CPU's that are older than 3rd gen. But I had no issue with a 8gb stick of the same speed and timings before AND it was paired with a random 8gb stick I already had.
I had tried with xmp off first and turned it on later as it didn't work and some sites give this as a fix.
The motherboard supports 32gb of ram.
It supports up to 3200mhz speeds.

Now in BIOS(Tool/ASUS SPD information) it says the maximum bandwidth of each stick is 2133mhz. <- if this means anything?

 

[USAFRet]

But I had no issue with a 8gb stick of the same speed and timings before AND it was paired with a random 8gb stick I already had.

Sometimes it works, sometimes it fails.

 

[Tony_186]

Sometimes it works, sometimes it fails.

True. But I'd like to know if it can be fixed.