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8GB ram installed but only 3.95 usable

Discussion in 'Hardware' started by johni111, Oct 24, 2018.

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  1. johni111

    johni111 Thread Starter

    Joined:
    Oct 24, 2018
    Messages:
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    Hello. I just bought a components to build my first computer. But after istallation I found that I am using only 3.95gb out of 8gb ram. I tried probably everything. My bios is up-to date. But here is some strange. In bios I can see only 1 installed stick. But in windows I can see 2 of them. Also the ram are 2800 mAhz but in bios is only 2144. I am really out of ideas.

    Specs:
    CPU: Ryzen 5 2600
    Mobo: ASUS Prime b450m-k
    GPU: MSI GeForce GTX 1060 3gb
    Ram : 2X4gb Viper
    OS: Windows 64-bit with 64-bit processor ( lattest version)
     
  2. lochlomonder

    lochlomonder

    Joined:
    Jul 24, 2015
    Messages:
    2,672
    Power down the PC, remove one of the sticks, power it back up, and then see what's reported in the BIOS. If it reports normally, power it down again, remove the stick already on the motherboard and then replace it with the other stick. Power it up and check again what's being reported in the BIOS.
     
  3. johni111

    johni111 Thread Starter

    Joined:
    Oct 24, 2018
    Messages:
    2
    Already tried. Both of rams where loaded. But worked only one socket for ram. There closer one to cpu was working Well. But when i put ram into second socket it wont load ram. But when both of them are in both socket then IT works. Cpu-z and windows see both of them
     
  4. Oddba11

    Oddba11

    Joined:
    May 12, 2011
    Messages:
    7,859
    First Name:
    Jim
    Are you using supported RAM?

    Asus support page is here: https://www.asus.com/us/supportonly/PRIME B450M-K/HelpDesk_QVL/

    RAM detection and speed are determined by the BIOS. Speeds will also vary based on the cpu used.

    You may need to update the BIOS. You may also need to get a different brand/model of RAM for proper support.
     
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