Jump to content
Corsair Community

RAM went from 32GB to 16GB inexplicably Vengeance LPX

Recommended Posts

Hello, I have an almost 4-year-old Corsair Vengeance LPX DDR 4 32G (2x16) 3200.

Till recently I saw my computer is using the whole 32GB, however, I noticed that now I only see 16GB of RAM. (15.9GB to be exect)


In the BIOS I see only 16384mb.

In Task Manager I see in the top 32GB, but only 16GB in use.

Both 2 slots are in use.

In device specifications/ I see 32GB installed but only 15.9GB in use.


I tried reseating and changing slots but it didn't help.


Strange thing is that when I try to boot with only one stick instead 2 things happen:

1st stick - the computer goes into power-saving mode and shuts down.

2nd stick - nothing boots, just all the fans speed up and get very loud, but that's it.


I have AMD Ryzen 7 1700x and Asus Prime x370-pro.


Thank you.

Link to comment
Share on other sites

  • Corsair Employees

Hey Pavman,


Sounds like it might just be a single stick failure.

Try a CMOS reset, and testing one stick at a time in the primary slot

A memtest (copy/pasted below) will also highlight if the kit might be faulty or not


Please run memtest86 from a bootable USB to test the RAM

Downloadable from https://www.memtest86.com/

Full instructions can be found on the site.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...