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  1.    24 Sep 2017 #1
    Join Date : Sep 2017
    Posts : 3
    Windows 10 Pro 64 bit

    Windows 10 Pro - 64 Bit, 7.93gb RAM Usable, 16gb Found?


    Hello everyone, I am at a loss here with my new desktop as to why Windows 10 Pro (64 bit) is currently only allowing me to use half of my RAM. Due to a fried CPU I rebuilt this computer with some good parts:


    CPU: Ryzen 7 1700
    Motherboard: ASUS H97 Plus
    RAM: 16gb (2x8gb)
    Video: GTX 1070
    500gb SSD + 1TB HD

    I saw some people asking about RAM specifics, they were bought in a pack of 2:

    PNY Anarchy 16GB Kit (2x8GB) DDR4 2133MHz (PC4-17000) CL15 Desktop Memory (BLUE) - MD16GK2D4213315AB

    During the process I formatted my harddrives and reinstalled windows (first time using windows 10, always been a fan of 7) and have the 64 bit Windows 10 Pro installed.


    When I enter bios the bios show 16gb of RAM read in the correct channels however I cant seem to allow my computer to use more than 8gb of RAM which is detrimental to a lot of the things I do on this.


    Browsing countless forums Ive tried a variety of fixes, like turning off the Auto Manage Paging Files, reseating RAM, checking bios to make sure its running at the correct speeds/voltage, I have no idea what to do next.


    This is currently Windows 10 Pro 64 bit, I thought it might be that I havnt activated it yet (waiting on a key) but from what I have read that doesn't affect available RAM usage.
      My ComputerSystem Spec
  2.    24 Sep 2017 #2
    Join Date : May 2016
    Posts : 754
    Windows 10 Pro

    Not that I doubt you.....but how do you know your PC is only allowing half the RAM to be used?
      My ComputerSystem Spec
  3.    24 Sep 2017 #3
    Join Date : Sep 2017
    Posts : 3
    Windows 10 Pro 64 bit
    Thread Starter

    When I go into system information/task managerClick image for larger version. 

Name:	system.png 
Views:	13 
Size:	61.1 KB 
ID:	154872
      My ComputerSystem Spec
  4.    24 Sep 2017 #4
    Join Date : Nov 2013
    Houston
    Posts : 2,115
    3-Win-7Prox64 2-Win10Prox64

    Hi,
    Hardware reserved 8.1gb's is where it is soaked up
    Attachment 154873
    Why well most I've read it's a bios issue where possibly seeing if there is a bios update might address the issue ?
    Might also try optimize default in the bios ?
      My ComputersSystem Spec
  5.    24 Sep 2017 #5
    Join Date : Sep 2017
    Posts : 3
    Windows 10 Pro 64 bit
    Thread Starter

    Thats what caught my eye, however running default bios settings and it is currently at the most up-to-date version, the bios also shows the full 16gb being read just fine
      My ComputerSystem Spec
  6.    24 Sep 2017 #6
    Join Date : Nov 2013
    Houston
    Posts : 2,115
    3-Win-7Prox64 2-Win10Prox64

    Hi,
    I would imagine it's the amd processors built in graphic's that has reserved the 8.1gb's
    How to free it up ?
      My ComputersSystem Spec
  7.    24 Sep 2017 #7
    Join Date : May 2016
    Posts : 754
    Windows 10 Pro

    Quote Originally Posted by ThrashZone View Post
    Hi,
    I would imagine it's the amd processors built in graphic's that has reserved the 8.1gb's
    How to free it up ?
    Exactly....you must disable the onboard GPU and set the PCI express port as default for your GPU.
    EDGE not working on Tenforums anymore

    But first I'd check to make sure that the RAM sticks are firmly seated.
      My ComputerSystem Spec
  8.    24 Sep 2017 #8
    Join Date : May 2016
    Posts : 754
    Windows 10 Pro

      My ComputerSystem Spec
  9.    24 Sep 2017 #9
    Join Date : Nov 2013
    Houston
    Posts : 2,115
    3-Win-7Prox64 2-Win10Prox64

    Hi,
    I'm sure uefi bios will look a lot different that those legacy bios
      My ComputersSystem Spec
  10.    24 Sep 2017 #10
    Join Date : Nov 2015
    Posts : 46
    Windows 10 X64

    CPU: Ryzen 7 1700
    Motherboard: ASUS H97 Plus


    Theese cant play together. please write down what your pc have. Also ryzen has no onboard grafiks.

    -http://www.overclock.net/t/1629745/crosshair-vi-hero-16-gb-ram-8gb-usable-help
    Here in internet in a forum i found something similar. Better to read it.
    1)Maybe you have bent pin?
    2)clear cmos with battery.
    3) run ram in lower speed.


    Some more search:
    This is like a bios asus bug for ryzen:
    -https://rog.asus.com/forum/showthread.php?93066-DRAM-ignores-the-freq-timings-I-set/page2
    read more and try with another ram
      My ComputerSystem Spec

 
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