Hyperx 2133 Mhz DDR4 problem with ryzen ?

Sep 17, 2018
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CPU : Ryzen 5 1600
MB : MSI B350 PC MATE
OS : Windows 10 x64
till now the system was running with 4 Gb of ddr4 hyperx 2133Mhz , today i bought another stick from someone , the same specs , with my stick the system works fine , with the new stick the system is not even booting, I can't enter in bios , the system is restarting , with both sticks , in bios shows me that both sticks are inserted but only 4 gb of ram installed , and in windows shows me that i have 8 gb ram ( only 4 used ) like limitation of windows 32 bit. The stick is working fine , i tested on another computer ( Intel ), what is the problem ? my bios is last version ( I made update )

LE : img with system info : https://ibb.co/h14t30
img in bios : https://ibb.co/eJ72wL
 
Sep 17, 2018
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I cleared cmos , the new stick , is not working on my system , the ddr light ( on ez debugger ) is turning on and stay like this , the old one is working fine , on a Intel system is working fine both and in dual channel .
Why on intel is working and on amd is not !?
 
Sep 17, 2018
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no , is not eec memory :( I edited my post with 2 images .
 
Ram is sold in kits for a reason.
A motherboard must manage all the ram using the same specs of voltage, cas and speed.
The internal workings are designed for the capacity of the kit.
Ram from the same vendor and part number can be made up of differing manufacturing components over time.
Some motherboards, can be very sensitive to this.
This is more difficult when more sticks are involved.
That is why ram vendors will NOT support ram that is not bought in one kit.

ryzen is particularly picky about ram.
Not all DDR4 ram will work properly.
Excercize due dilligence and buy only comptible ram kits.

One place to check is your motherboards web site.
Look for the ram QVL list. It lists all of the ram kits that have been tested with that particular motherboard.
Sometimes the QVL list is not updated after the motherboard is released.
For more current info, go to a ram vendor's web site and access their ram selection configurator.
Enter your motherboard, and you will get a list of compatible ram kits.
Sometimes, the model of cpu you plan on using is relevant.

My suggestion is to sell the ram you have in favor of a supported 2 x 4gb kit.