----- Original Message ----- From: "James Button" <[EMAIL PROTECTED]>
Sent: Tuesday, April 11, 2006 11:33

...
If that is within windows - there is an option to tell windows to work with
a 4Gb limit instead of the default 3GB limit

If that is at the Startup BIOS memory check - although the 'may' bit needs a
bit of consideration
as does the meaning of 3+ being a little less than 4Gb
( - wot 399,999,999 bytes, or 300,000,001bytes?)

are some of these boards different to others despite the same code
or is the difference to do with the memory,
or perhaps it's to do with the refresh/read/write cycles, voltage (power
available) and bus speed/multiplier
...


WindowsXP has a default limit of 4GB of RAM, not 3GB. The OS reporting 3GB+ of RAM when 4GB are installed is a display bug only. Windows will still allow use of the full 2GB OS and 2GB APPS. see: http://support.microsoft.com/kb/888137/en-us

From Microsoft KB article http://support.microsoft.com/?kbid=555223:
"
Here's a list of how much RAM the various Windows versions and editions support (as of Nov 2004):

    Windows NT 4.0: 4 GB
    Windows 2000 Professional: 4 GB
    Windows 2000 Standard Server: 4 GB
    Windows 2000 Advanced Server: 8GB
    Windows 2000 Datacenter Server: 32GB
    Windows XP Professional: 4 GB
    Windows Server 2003 Web Edition: 2 GB
    Windows Server 2003 Standard Edition: 4 GB
    Windows Server 2003 Enterprise Edition: 32 GB
    Windows Server 2003 Datacenter Edition: 64 GB
"

Also, the following article regarding PAE may be of interest to understand the ability to use more than 4GB on a 32 bit architecture.
http://www.microsoft.com/whdc/system/platform/server/PAE/pae_os.mspx.


Regards,
*************************************
Rick Cogan from Melbourne, FL
[EMAIL PROTECTED]


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