RAM amount doesn't match

Posted on 2014-08-31
Last Modified: 2014-09-17

I used Disk2VHD to convert a physical server (windows 2008R2) to a VM that runs on Windows 2012 Hyper V.

I assigned 64G RAM to this VM from the host setting. I do can see all the RAM amount correctly in Control Panel>System in the VM, but shows only 32G in the Windows Task Manager>Performance. I would like this VM using all the RAM (64G ) as I allocated to it.

Is there anything I missed to setup in the Hyper V setting? Thanks
Question by:tonitoni99
    LVL 95

    Accepted Solution

    If you are not running 2008 R2 Enterprise or Data Center, you CANNOT see more than 32 GB of RAM.  2008 R2 Standard had a limit of 32 GB of RAM.  Nothing you can do other than to upgrade to 2012 (Standard or Enterprise), 2008R2 Enterprise, or 2008R2 Datacenter.
    LVL 19

    Expert Comment

    by:Miguel Angel Perez Muñoz
    What version of gest OS are you using? some of them has limits below 64Gb:
    LVL 116

    Expert Comment

    by:Andrew Hancock (VMware vExpert / EE MVE)
    Upgrade your OS to an OS which supports more than 32GB of RAM.
    LVL 34

    Expert Comment

    by:Seth Simmons
    I do can see all the RAM amount correctly in Control Panel>System in the VM...

    going along with the other comments, i'm going to assume that it also says there "32GB usable" ?

    Featured Post

    Highfive Gives IT Their Time Back

    Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

    Join & Write a Comment

    #Citrix #XenApp #Citrix Scout #Citrix Insight Services #Microsoft VMMAP #Microsoft ADEXPLORE #Microsoft RAMMAP #Microsoft TCPVIEW #Microsoft AUTORUNS #Microsoft PROCESS EXPLORER #Microsoft PROCESS MONITOR
    VM backups can be lost due to a number of reasons: accidental backup deletion, backup file corruption, disk failure, lost or stolen hardware, malicious attack, or due to some other undesired and unpredicted event. Thus, having more than one copy of …
    Windows 8 came with a dramatically different user interface known as Metro. Notably missing from that interface was a Start button and Start Menu. Microsoft responded to negative user feedback of the Metro interface, bringing back the Start button a…
    With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…

    729 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    20 Experts available now in Live!

    Get 1:1 Help Now