4Gb DDR2-533

[BuckMaster]

I just built a new PC running Windows XP Pro/SP2 with 4 GB of ram. However windows only sees it as 2.75GB. Is it maxed out at that? Even though it says 2.75GB is it using the whole 4 GB? Is the other 2 GB a waste id not?

Thanks!

 

[secretanchitman]

xp 32 bit only sees up to a max of 3.25GB...vista will (does) see all 4GB and more. also windows xp 64 bit sees 4GB.

so yes, the other 1.75GB will be wasted...

 

[sjandrewbsme]

That's the max XP Pro 32bit sees.

I don't think there's anything you can do.

 

[BuckMaster]

Gotcha thanks guys!

 

[DaveBC]

I think I remember reading something about 32 bit XP and Vista systems using "shadow caching" for the remaining ram that windows dosent detect.

Also, I believe XPSP2 actually has 4 GB of addresses depending on you hardware config. You see what remains after the hardware addressing uses up their allocation first.

Something like that.

 

[Rubycon]

Text

 

[Oxides]

Vista 32bit wont see 4GB. It handles this the same as XP does. There are a lot of vista/4gb threads about this issue. The only 32bit ms OS that will see 4GB are xp (pre sp2) and 2003

 

[BuckMaster]

I thought I was told somewhere it wont read all the 4 GB but would use all of it.

 

[shortylickens]

Originally posted by: BuckMaster
I thought I was told somewhere it wont read all the 4 GB but would use all of it.

You either heard wrong or were listening to a numbnuts.
If it cant read it, then it certainly wont be able to use it.