BIOS recognizes 4 gigs of ram windows xp only uses 3 gigs

[cwc1885]

I've got an XP Thinkpad Lenovo T61 that has 4 gigs of RAM purchased from Crucial.com.
Windows only recognizes 2.99 gigs.http://craigcoleman.com/images/mycomputer.gif

any ideas?
Thank you,
cwc1885

[Harryc]

32bit XP will not recognize more than 3GB of RAM. You need a 64bit OS to recognize more than that.

[ThinkPadophile]

If you don't plan to upgrade to Vista or Windows 7, then eBoostr might be of interest to you. The soon to be released version 4.0 (currently in beta testing) detects "unmanaged RAM" (the 1 GB of RAM that XP doesn't recognize) and uses it as a RAM disk to cache programs. eBoostr also gives you the functionality of ReadyBoost on XP. I've found that it speeds up my T60p modestly. It might give you even more benefit since you have 1GB of unmanaged RAM that I don't.

[RealBlackStuff]

See this: http://forum.thinkpads.com/viewtopic.php?f=29&t=49703