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4GB Ram in ASUS Sli Deluxe Board

Discussion in 'Hardware Q&A' started by stalin, Mar 21, 2006.

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  1. stalin

    stalin New Member

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    I installed 4GB Transcend 400Mhz RAM in my ASUS Sli Deluxe Board. While booting it shows 4GB but in In Windows Xp it shows only 3GB Ram. I saw the manual it says due to Chipset resource allocation, the system may detect less than 4GB of system memory when you installed four 1GB DDR memory modules. Previous I had 2GB RAM, after adding more 2GB RAM (TOTAL 4GB) I did'nt find any difference in application (like photoshop, coreldraw etc., Can anyone tell me how to speedup my system. Please Help

    thanx
    stalin
     
  2. Vyasram

    Vyasram The pWnster

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    dude, i dont know abt ur question. But plz answer mine, why do u need 4 gb ram. 2 gb will work the same as 4 gb in win xp. U dont need more than 2 gb for any application like photoshop. Instead u'll just add heat to ur system. So do urself a favor and remove the two ram sticks and sell it to someone or keep it safe until vista arrives
     
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    stalin

    stalin New Member

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    so why do manfacture provide for 4GB RAM Slot. If I install Windows XP 64Bit can I find any difference in it.

    stalin
     
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    stalin

    stalin New Member

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    so why do manfacture provide for 4GB RAM Slot. If I install Windows XP 64Bit can I find any difference in it.

    stalin
     
  5. mako_123

    mako_123 New Member

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    Dude Vyasram is telling the right thing . 2GB or 4GB the performance will nearly be the same . manufactures provide the slot so basically you can upgrade in the future if you want .
     
  6. mav3r1ck

    mav3r1ck New Member

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    whoa!! :shock: are u going to start a game server or what? :lol: u are way too ahead of your time buddy. at present 2 GB RAM is more than enough bro. take out those 2 extra RAM sticks and either save it for future or sell it. i bet u won't find any decrease in performance at present just coz u decreased ur RAM from 4 to 2 GB. but u should have saved the money u spent on those extra 2 sticks and gone for a very nice GFX card. and yes remember to reconfigure the remaining RAM sticks in mobo to enable Dual Channel mode.

    cha.
     
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    stalin

    stalin New Member

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    Memory Support and Windows Operating Systems
    Updated: February 9, 2005


    Operating systems based on Microsoft® Windows NT® technologies have always provided applications with a flat 32-bit virtual address space that describes 4 gigabytes (GB) of virtual memory. The address space is usually split so that 2 GB of address space is directly accessible to the application and the other 2 GB is only accessible to the Windows executive software.

    The 32-bit versions of the Windows® 2000 Advanced Server and Windows NT Server 4.0, Enterprise Edition, operating systems were the first versions of Windows to provide applications with a 3-GB flat virtual address space, with the kernel and executive components using only 1 GB. In response to customer requests, Microsoft has expanded the availability of this support to the 32-bit version of Windows XP Professional and all 32-bit versions of Windows Server™ 2003.

    Windows 2000 Memory Support. With Windows 2000 Professional and Server, the maximum amount of memory that can be supported is 4 GB (identical to Windows NT 4.0, as described later in this section). However, Windows 2000 Advanced Server supports 8 GB of physical RAM and Windows 2000 Datacenter Server supports 32 GB of physical RAM using the PAE feature of the IA-32 processor family, beginning with Intel Pentium Pro and later.

    Windows XP Professional and Windows Server 2003 Memory Support. The maximum amount of memory that can be supported on Windows XP Professional and Windows Server 2003 is also 4 GB. However, Windows Server 2003, Enterprise Edition supports 32 GB of physical RAM and Windows Server 2003, Datacenter Edition supports 64 GB of physical RAM using the PAE feature.

    The virtual address space of processes and applications is still limited to 2 GB unless the /3GB switch is used in the Boot.ini file. When the physical RAM in the system exceeds 16 GB and the /3GB switch is used, the operating system will ignore the additional RAM until the /3GB switch is removed. This is because of the increased size of the kernel required to support more Page Table Entries. The assumption is made that the administrator would rather not lose the /3GB functionality silently and automatically; therefore, this requires the administrator to explicitly change this setting.

    The /3GB switch allocates 3 GB of virtual address space to an application that uses IMAGE_FILE_LARGE_ADDRESS_AWARE in the process header. This switch allows applications to address 1 GB of additional virtual address space above 2 GB.

    The virtual address space of processes and applications is still limited to 2 GB, unless the /3GB switch is used in the Boot.ini file. The following example shows how to add the /3GB parameter in the Boot.ini file to enable application memory tuning:

    [boot loader]
    timeout=30
    default=multi(0)disk(0)rdisk(0)partition(2)\WINNT
    [operating systems]
    multi(0)disk(0)rdisk(0)partition(2)\WINNT="????" /3GB

    Note: "????" in the previous example can be the programmatic name of any of the following operating system versions:

    Windows XP Professional
    Windows Server 2003
    Windows Server 2003, Enterprise Edition
    Windows Server 2003, Datacenter Edition
    Windows 2000 Advanced Server
    Windows 2000 Datacenter Server
    Windows NT Server 4.0, Enterprise Edition

    Windows NT 4.0 Memory Support. With Microsoft Windows NT 4.0 Workstation and Server operating systems, the maximum amount of physical memory supported is 4 GB. The maximum amount of virtual memory is 2 GB.

    With Windows NT 4.0 Server, Enterprise Edition, the /3GB switch was first added to Boot.ini.

    Application Memory Tuning. This capability allows memory-intensive applications to utilize up to 50 percent more virtual memory on Intel-based computers. Application memory tuning provides more of the computer's virtual memory to applications by providing less virtual memory to the operating system.

    Application Changes. No APIs are required to support application memory tuning. However, it would be ineffective to automatically provide every application with a 3-GB address space.

    Executables that can use the 3-GB address space are required to have the bit IMAGE_FILE_LARGE_ADDRESS_AWARE set in their image header. If you are the developer of the executable, you can specify a linker flag (/LARGEADDRESSAWARE).

    To set this bit, you must use Microsoft Visual Studio Version 6.0 or later and the Editbin.exe utility, which has the ability to modify the image header (/LARGEADDRESSAWARE) flag. For more information on setting this flag, see the Microsoft Visual Studio documentation.

    Some manufacturers preconfigure their applications to use application memory tuning, making it unnecessary for you to make this change. For more information, see your application documentation and contact your application vendor to determine whether they support Large Address Awareness or whether you can enable it in their application.

    Physical Address Extension. PAE is an Intel-provided memory address extension that enables support of up to 64 GB of physical memory for applications running on most 32-bit (IA-32) Intel Pentium Pro and later platforms. Support for PAE is provided under Windows 2000 and 32-bit versions of Windows XP and Windows Server 2003. 64-bit versions of Windows do not support PAE.

    PAE allows the most recent IA-32 processors to expand the number of bits that can be used to address physical memory from 32 bits to 36 bits through support in the host operating system for applications using the Address Windowing Extensions (AWE) application programming interface (API). For information about the AWE API, see the Base Services section of the Platform SDK.
     
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    stalin

    stalin New Member

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    Will it work if in change in boot.ini coz I spend around Rs.9000 for this RAM. I think I can't sell it back. I bought 2GB Ram recently.
     
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    stalin

    stalin New Member

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    How to set boot.ini in Windows Xp Professional to get access of 3GB RAM.

    I read in Microsoft.com and Adobe website about 3GB RAM.

    When I tried to change in boot.ini. I get a blue screen.

    http://www.adobe.com/support/techdocs/320005.html

    http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx

    (This is my boot.ini)

    [boot loader]
    timeout=30
    default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
    [operating systems]
    multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect /3GB
     
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