I have XP 64 bit and 4 Gb of ram only shows 3.75 Gb

[Kngzkid]

I have XP 64 bit and 4 Gb of ram, but system properties only shows 3.75. I had Vista 32 bit and fully updated it registered 4 Gb. I was told that the 32 bit Vista did not actually utilize the full 4 Gb of ram it just was able to show you that you actually had 4 Gb. Well I bought XP 64 bit because I did not like Vista and my computer had issues when Vista was installed that are not there when XP is installed. I love the XP 64 bit even more that XP 32 bit. I just wanted to know if there was any thing I needed to do to get my computer to recognize the full 4 Gb of ram.
I work with graphics programs alot is the reason I wanted the 4 GB of Ram. (Corel Draw, Photoshop CS3, Paintshop Pro X1)

My computer is an Acer Aspire 4520 with AMD2 Turion TK 55

 

[pinaplex]

does that acer model have integrated graphics? in which case, it would using part of your ram as video memory. so 3.75gb will be the max you can use...

 

[Jim_L9]

I think Pinaplex is right. How much memory does it show if you remove the other memory module?

 

[Kngzkid]

Yes, I believe he is right since I have assigned 256Mb of ram to the graphics controller
I should have thought of that.

Kevin