Only 64mb Video Ram in Windows (Bootcamp)

Discussion in 'Mac Pro' started by cobaltmetallic, Aug 4, 2006.

  1. cobaltmetallic macrumors newbie

    Aug 4, 2006
    I have a 2GHx MacBook with 2GB RAM. I've read elsewhere that Windows recognizes the Intel GMA 950 as having 128mb of RAM. After installing XP Pro through Bootcamp, I can only get it to show 64mb max video RAM. I have tried installing the drivers off of Intel's site and reinstalling Windows, but I still only show 64mb max RAM. I know that the GMA 950 can handle up to 224mb and OS X only allows 64mb, but Windows should be able to use more than 64mb. How can I enable the computer to use more that 64mb? :confused:

    Intel(R) Graphics Media Accelerator Driver for Mobile Report
    Report Date: 08/04/2006
    Report Time[hr:mm:ss]: 22:09:26
    Driver Version:
    Operating System: Windows XP* Professional, Service Pack 2 (5.1.2600)
    Default Language: English
    DirectX* Version: 9.0
    Physical Memory: 2016 MB
    Minimum Graphics Memory: 16 MB
    Maximum Graphics Memory: 64 MB
    Graphics Memory in Use: 8 MB
    Processor: x86 family 6 Model 14 Stepping 8
    Processor Speed: 1997 MHZ
    Vendor ID: 8086
    Device ID: 27A2
    Device Revision: 03

    * Accelerator Information *

    Accelerator in Use: Mobile Intel(R) 945GM Express Chipset Family
    Video BIOS: 1284
    Current Graphics Mode: 1280 by 800 True Color (60 Hz)

    * Devices Connected to the Graphics Accelerator *
    Active Notebook Displays: 1

    * Notebook *
    Monitor Name: Plug and Play Monitor
    Display Type: Digital
    Gamma Value: 2.0
    DDC2 Protocol: Supported
    Maximum Image Size: Horizontal: Not Available
    Vertical: Not Available
    Monitor Supported Modes:
    1280 by 800 (60 Hz)
    Display Power Management Support:
    Standby Mode: Not Supported
    Suspend Mode: Not Supported
    Active Off Mode: Not Supported

    * SDVO Encoder Report *

    ** Encoder 1 **
    Vendor ID: Silicon Image
    Device ID: 170
    Device Revision: 3
    Major Version: 1
    Minor Version: 1
  2. atticus1178 macrumors regular

    Apr 1, 2006
    Austin, Texas
    when i had my mac mini it recognized the video card as having 128 MB of shared memory

    wonder why yours doesnt
  3. After G macrumors 68000

    After G

    Aug 27, 2003
    Did you try to install the drivers from the Boot Camp Drivers CD. This is assuming:

    1) You ran Boot Camp to install Windows.
    2) You made a driver CD like it asked you to.

    Sorry if you did, it just seems like from what you said that you didn't try the Apple driver CD.
  4. cobaltmetallic thread starter macrumors newbie

    Aug 4, 2006
    I did use the Mac Drivers CD. When I didn't get that to work, I tried downloading the drivers. I find it very odd that everyone else has windows recognizing 128mb ram while mine will only recognize 64. I am surprised that there isn't some way to change the allocated memory.
  5. cobaltmetallic thread starter macrumors newbie

    Aug 4, 2006
    Could anyone else out there running XP with bootcamp on a MacBook let me know what kind of numbers they are getting with their video ram?
  6. Anonymous Freak macrumors 603

    Anonymous Freak

    Dec 12, 2002
    Is there a specific reason you want more than 64 MB of VRAM?

    Because it is using main system RAM for VRAM anyway, as long as you have enough memory for your frame buffer (horizontal pixels times vertical pixels times bit depth divided by 8, times two for double buffered, or about 12 MB for the MacBook's internal screen at 32-bit color, triple buffered,) then it doesn't matter. All modern video cards will use main system RAM for textures if there isn't enough onboard memory, so since main system RAM and VRAM are the same thing on the MacBook, it doesn't matter.

    Unless you happen to be trying to run a program that actually INSISTS on more than 64 MB of video RAM for some unknown reason.

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