16 GB RAM installed but only 8 GB usable

jago86

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Trinidad
Hello,

I have 16GB of DDR3 memory installed but Windows 8.1 x64 shows that only 8 GB is usable.

I did overclock my processor yesterday and have only noticed it this morning, I'm not sure if it was reading the full 16GB when I initially overclocked.

Please see attached screenshots and system specifications below.

Your thoughts?

Regards,
James


View attachment 54124View attachment 54125View attachment 54126

View attachment 54134

System Spec

OS - Windows 8.1 Pro x64
CPU - AMD FX 6300 3.5 Ghz (Stock speed) - 95W Overclocked to 4.5Ghz
Motherboard - MSI 970A-G46 - BIOS 7693 v2.6
Memory - Kingston 16GB DDR3
Graphics Card - MSI TwinFrozr III nVidia GTX 680 2GB
PSU - Thermaltake TR2 600 Watt
 
Last edited:

My Computer

System One

  • OS
    Windows 8.1 Pro x64
    Computer type
    PC/Desktop
    System Manufacturer/Model
    My Build
    CPU
    AMD FX 8350 4 Ghz (Stock speed) 95W
    Motherboard
    ASUS Sabertooth 990FX R2.0
    Memory
    Kingston 16GB DDR3
    Graphics Card(s)
    MSI TwinFrozr III nVidia GTX 680 2GB
    Sound Card
    RealTek HD Audio - Logitech THX Z906 5.1 Surround Sound - 500W
    Monitor(s) Displays
    Samsung 32" LCD Television - LN32D405E3D
    Screen Resolution
    1360 x 768
    Hard Drives
    Samsung EVO 840 (OS)

    Seagate 500GB (Miscellaneous) 7200rpm SATA 6

    Hitachi 500GB (Games) @ 7200rpm SATA 6

    Hitachi 1TB (Downloads) 7200rpm SATA 3
    PSU
    Cooler Master 800W
    Case
    Corsair HAF XM
    Cooling
    Corsair H80i
    Keyboard
    Klip Xtreme Multimedia- KMM 101E
    Mouse
    Genius Maurus
    Internet Speed
    100 Mbit/s
    Browser
    Opera / Chrome
    Antivirus
    Symantec Endpoint
    Other Info
    i love wantons, sushi, fruit cocktail, pistachio gelato and lemon sorbet

    F1 Savant
I've got it to work sort of.. Fiddled with BOOT Advanced Options and got it to show 15.5GB out of 16GB with 547MB reserved.

54150d1416500090-16-gb-ram-installed-but-only-8-gb-usable-boot-advanced-options.jpg


Any thoughts on the following, do they look right?

54149d1416500089-16-gb-ram-installed-but-only-8-gb-usable-15.5-gb-memory.jpg

54151d1416500090-16-gb-ram-installed-but-only-8-gb-usable-cpu-z-i.jpg

54152d1416500091-16-gb-ram-installed-but-only-8-gb-usable-cpu-z-ii.jpg

54153d1416500092-16-gb-ram-installed-but-only-8-gb-usable-cpu-z-iii.jpg
 

My Computer

System One

  • OS
    Windows 8.1 Pro x64
    Computer type
    PC/Desktop
    System Manufacturer/Model
    My Build
    CPU
    AMD FX 8350 4 Ghz (Stock speed) 95W
    Motherboard
    ASUS Sabertooth 990FX R2.0
    Memory
    Kingston 16GB DDR3
    Graphics Card(s)
    MSI TwinFrozr III nVidia GTX 680 2GB
    Sound Card
    RealTek HD Audio - Logitech THX Z906 5.1 Surround Sound - 500W
    Monitor(s) Displays
    Samsung 32" LCD Television - LN32D405E3D
    Screen Resolution
    1360 x 768
    Hard Drives
    Samsung EVO 840 (OS)

    Seagate 500GB (Miscellaneous) 7200rpm SATA 6

    Hitachi 500GB (Games) @ 7200rpm SATA 6

    Hitachi 1TB (Downloads) 7200rpm SATA 3
    PSU
    Cooler Master 800W
    Case
    Corsair HAF XM
    Cooling
    Corsair H80i
    Keyboard
    Klip Xtreme Multimedia- KMM 101E
    Mouse
    Genius Maurus
    Internet Speed
    100 Mbit/s
    Browser
    Opera / Chrome
    Antivirus
    Symantec Endpoint
    Other Info
    i love wantons, sushi, fruit cocktail, pistachio gelato and lemon sorbet

    F1 Savant
Hi Jago86 ^_^,

Glad to hear that you were able to enable the maximum RAM. The above screenshots are good, but I see one problem in them. The CPU-Z is showing the frequency of the RAM as 667MHz which is quite low IMO. I just checked mine in the Task Manager and even though this laptop is old now, I am seeing 1600MHz as the RAM frequency.

I would suggest you to reset the BIOS settings to DEFAULT settings and check the frequency.

Let me know how it goes ^_^
 

My Computer

System One

  • OS
    Windows 8.1 Industry Pro B-)
    Computer type
    Laptop
    System Manufacturer/Model
    Toshiba
    CPU
    Core I5 2430M @ 2.4GHz
    Memory
    8 GB DDR3 @ 1600MHz Dual Channel ^_^
    Graphics Card(s)
    Intel HD 3000 B-)
    Screen Resolution
    1366x768
    Hard Drives
    Toshiba 500 GB
    Browser
    Google Chrome
    Antivirus
    Windows Defender & Common Sense!
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