/3GB is a switch for virtual address space. It doesn't make Windows see any more RAM. It means that for user mode processes, only 1GB of the 4GB that a process can see, is used/reserved by the kernel.
/PAE switch doesn't do anything on Windows XP SP2 (it did before that) WRT to enabling additional physical memory (/PAE is required to enable No Execute support though). This is because it caused too many BSODs from poorly written drivers. If you want to access >4GB of RAM, your best bet is to use a 64bit OS. NOTE: your chipset all needs to support >4Gb of address space. Some don't (e.g. the Napa/Intel 945 chipset used by early Core 2 Duo CPUs) Cheers Ken On Fri, Mar 21, 2008 at 12:42 PM, Brumbaugh, Luke <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote: Does anyone have idea how to make XP recognize 4gb Ram? This is on a Dell OPtiplex 745 with XP Pro 32bit I have used /PAE and /3gb in the boot.ini with no luck. My next suggestion was upgrade to 64bit Luke L. Brumbaugh Network Engineer Butler Animal Health Supply Ph:(614) 659-1736 ********************************************************************** CONFIDENTIALITY NOTICE: The information transmitted in this message is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and destroy all copies of this document. Thank you. Butler Animal Health Supply ********************************************************************** -- -------------- Give a man a fish, and he'll eat for a day. Give a fish a man, and he'll eat for weeks! ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~
