Help please composing new Boot.ini file

[forbesie]

Hi,
It has been suggested to add a 3G/switch to my Boot.ini file for improving AutoCAD 2008 performance. My research has shown that I could really stuff my PC up if I don't do it right. One site recommends having a second instance of the OS line...
Their example:

[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 Pro"
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Pro with /3GB" /3GB

If there is a stuff up I will get back into my PC to correct things.
Here's where I need help!

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" /fastdetect /NoExecute=OptIn

Would some whiz be able to write it so that I have a second instance of OS.
As mine is different to the example I'm not sure how to do it.
Appreciate your help.

 

[Po`Girl]

Hi,

Before you do this,read THIS page,carefully.

The boot ini you need is -

[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
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="XP full 3GB setting" /3GB /fastdetect /NoExecute=OptIn

Also the first time you reboot to the 3GB mode immediately go the the My Computer properties/Advanced tab/ Settings/ Advanced tab

and change the maximum amount of virtual memory to 4 GB. This is part of the microsoft requirements.

 

[forbesie]

Thanks for your help Po. Did it and it's OK. One further question. I have 2.5Gb of memory and it's recommended elsewhere that the virtual memory be set at 3 x physical memory = 7.5Gb. Should I still reduce it to the 4Gb for some reason?
Kind regards

 

[Po`Girl]

From what I understand,the /3G switch will give 3Gb to the application

and 1Gb to the Kernel.

Windows 32 bit won`t address more than 4 Gb of virtual memory.More HERE