Installed 4gb ram, only 3.19gb in use...why???

Solution


32bit OS, the most you can use is ~3.5GB.
The rest...~0.3GB...is taken up by the system.

What you see is normal.

USAFRet

Titan
Moderator


1. What OS is this? 32bit or 64bit?
2. What CPU/GPU combination?
 

USAFRet

Titan
Moderator


32bit OS, the most you can use is ~3.5GB.
The rest...~0.3GB...is taken up by the system.

What you see is normal.
 
Solution


Windows 32-bit can only "talk" to what's called a memory map and that is 4GB in TOTAL.

This includes not only the memory sticks (4GB) that you attached but also the VIDEO MEMORY as well as some minor things.

It sounds then that you have 512MB if VRAM (video memory). When the computer comes up it assigns this 512MB to the memory map, the other hardware resources and then what is left over from the 4GB memory map can be addressed.

If you'd had 2GB only then it would ALL have been utilized since you wouldn't exceed what is addressable in the map.