Windows 32-bit /PAE Boot Switch?

[akelly]

Have a computer w/ Windows XP Pro w/ 4GB RAM. Windows reports that there is only 3.5 GB installed.

1. Can I add the /PAE boot switch to get back that last 512MB of RAM?

The boot.ini file would look something like the file at the bottom of the e-mail. Microsoft Knowledge Base article here:
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Microsoft Windows XP Professional /3gb" /noexecute=optin /fastdetect /3GB
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect

[BenLoosli]

Windows 32-bit /PAE Boot Switch?body{font-family: Geneva,Arial,Helvetica,sans-serif;font-size:9pt;background-color: #ffffff;color: black;}p{margin:0px}
Most systems runnning Windows XP when using the /3GB switch, also require the /userva=2900 switch.
The OS is just over 1GB, so you have to allocate enought space to it before extending the user space allocation.

Ben