Question 32GB RAM installed but only 16GB used? Why?

Nov 26, 2022
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hey,

I bought 16GB more for my PC and put it in.
At first it looks all good, my info shows 32GB(Windows+Pause)

But my Task Manager, and Afterburner only show me 16GB.
So instead of 25% my RAM Usage is atleast 50%

Why is it like this? Mainboard MSI -b450

Thanks :)
 

Darkbreeze

Retired Mod
What are you doing that you NEED 32GB for?

What are the model numbers of BOTH memory kits?

What is the ACTUAL model of your motherboard, because "MSI B450" is not a model. It is just the brand and the chipset family (B450 chipset), and tells us nothing about what the board actually is. Look on the motherboard itself and the model will be printed on it somewhere.
 

Darkbreeze

Retired Mod
Also, the BIOS update I posted on your previous thread stands a very good chance of fixing this memory problem as you have the original BIOS version installed and there are like 11 newer versions, half of which are directly related to memory performance and compatibility.

I'd update the BIOS and then reinstall the other memory, and then reset the BIOS to default settings, and then enable XMP, and see where you stand after that. Knowing the model of the memory kits involved would be very helpful in determining why you are having this problem but the bottom line is that most Ryzen platforms, especially those early on or with early BIOS versions, do not like to support 4 DIMM configurations especially at higher speeds.
 

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