<div>
yeah, I was sure that was it. too bad that in Microsoft knowledge base they write it supports 32bit also.
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yeah, I was sure that was it. too bad that in Microsoft knowledge base they write it supports 32bit also.

<div>
if you edit your boot.ini file and add /PAE to the end it should show full 4GB<br />
<br />
eg.<br />
[boot loader]<br />
timeout=30<br />
default=multi(0)disk(0)rdi<wbr />sk(0)parti<wbr />tion(1)\WI<wbr />NDOWS<br />
[operating systems]<br />
multi(0)disk(0)rdisk(0)par<wbr />tition(1)\<wbr />WINDOWS=&quot;M<wbr />icrosoft Windows XP Professional&quot; /fastdetect /NoExecute=OptIn /PAE
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if you edit your boot.ini file and add /PAE to the end it should show full 4GB

eg.
[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" /fastdetect /NoExecute=OptIn /PAE

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You also might try turning off the page file if you really want to see that 4GBs of memory in Windows because this is using some of the bus lines to communicate with the physical RAM. &nbsp;<br />
<br />
To disable your page file:<br />
<br />
Right click on My Computer<br />
Go to Properties<br />
Click the Advanced tab<br />
Click Settings under Performance<br />
Click the Advanced tab here<br />
Click Change under Virtual Memory<br />
and lastly<br />
Select the 'No paging file' radio button
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You also might try turning off the page file if you really want to see that 4GBs of memory in Windows because this is using some of the bus lines to communicate with the physical RAM.  

To disable your page file:

Right click on My Computer
Go to Properties
Click the Advanced tab
Click Settings under Performance
Click the Advanced tab here
Click Change under Virtual Memory
and lastly
Select the 'No paging file' radio button

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<div class="content wysiwyg-content">
I use Windows XP pro and on the propertes of my computer it show 3G, even though i have the &nbsp; boot.ini &nbsp;3G switch turned on and 4G of ram installed.<br />
in the Bois i can see 4G but the OS show only 3G, what i need to do is there a tool the show the amount of memory that the os is using or runing?
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</div>


I use Windows XP pro and on the propertes of my computer it show 3G, even though i have the   boot.ini  3G switch turned on and 4G of ram installed.
in the Bois i can see 4G but the OS show only 3G, what i need to do is there a tool the show the amount of memory that the os is using or runing?

Installed 4G RAM and XP Pro show 3G RAM

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

Microsoft Windows XP is the sixth release of the NT series of operating systems, and was the first to be marketed in a variety of editions: XP Home and XP Professional, designed for business and power users. The advanced features in XP Professional are generally disabled in Home Edition, but are there and can be activated. There were two 64-bit editions, an embedded edition and a tablet edition.

Windows XP

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.