What should I do if the PC does not turn on when adding 2 more sticks?

Question

Computers

I decided to add RAM, but the PC does not turn on after installing the brackets. (It starts up by itself, but the peripherals do not respond. The monitor is just black, the orange indicator, and the mouse, keyboard and headphones do not light up).

I have on board 2 slats of 8 gigs each Kingston HyperX KHX2400C15/8G
I bought 2 more slats, as similar as possible.
The name differs by only one number.
In the system (both in the BIOS and in aida64 and in the properties of "my computer") they are defined in exactly the same way.
Unless aida showed a different chip manufacturer. In the old ones it is marked as kingston, in the new ones it is nanya

All bars are separately working in all slots.
Even if you insert 1 new bar and 1 old bar, then everything also works and is determined. (in 2-channel mode, that is, connectors of the same color)
But it's worth adding a third bar, and that's it. With 4, respectively, it also does not turn on.

Plan mat: asus prime b350 plus
CPU: amd ryzen 5 2400g Old
memory: Kingston HyperX FURY Black [HX424C15FB2K2/16] 16 GB
New RAM: Kingston HyperX FURY Black [HX424C15FB3K2/16] 16

GB
after adding RAM?
Does the system stop working after adding 4 sticks of RAM?
What should I do if, when adding the 4th stick of RAM, the computer stops giving a signal to the monitor?

But they do not have an answer, and, in general, new information that I have not tried either. Unless you buy a speaker and listen to squeaks.

I also noticed that if you insert 2 old strips into the connectors of different channels, that is, into slots of different colors, it also does not turn on.

The horse is more working. Didn't do any acceleration.

Answer 1

In general, by picking through the network, it turned out that most likely this motherboard does not specifically support these RAM sticks in an amount of more than 2 pieces.

Answer 2

First of all, update the bios. Do you have the latest bios?
Also, after installing the dice, reset the BIOS settings by pulling out the cmos battery from the motherboard for a couple of minutes (with the PC unplugged from the outlet)