I noticed that one of our Windows XP 32-bit boxes, which has 4GB of RAM, will only use up to 1.3GB of physical memory. Has anyone run into this before?
The only thing I can think of is that it's a 4GB-on-32-bit-OS thing, but I don't see why that would cause XP to only use 1/3 of the RAM.
In answer to your questions:
- The OS displayed 3.25GB of RAM.
- Even under high load (i.e., Photoshop + Firefox + other RAM-intensive programs) the system (according to procexp) only used up to 1.3GB of RAM. RAM load stayed at about 33%.
- I just swapped out one of the 2GB sticks for 1GB, bringing me to 3GB of RAM. Windows XP says I have 3GB of RAM installed. But procexp reports only 750MB being used, or about 25% of RAM.
So it doesn't seem to be a 32/64 bit issue.
The box has a Wolfdale E8400 running on an Asus P5K SE mobo. The OS is Win XP SP3 32-bit.