![Why Windows Vista only sees 3GB memory in a PC with 4GB RAM and how Vista SP1 fools its users – 4sysops Why Windows Vista only sees 3GB memory in a PC with 4GB RAM and how Vista SP1 fools its users – 4sysops](https://4sysops.com/wp-content/uploads/2008/04/4gb.png)
Why Windows Vista only sees 3GB memory in a PC with 4GB RAM and how Vista SP1 fools its users – 4sysops
![I have 4gb ram but only 3.3gb usable? but my onboard graphics allocated is only 64mb howcome? : r/computers I have 4gb ram but only 3.3gb usable? but my onboard graphics allocated is only 64mb howcome? : r/computers](https://i.redd.it/i-have-4gb-ram-but-only-3-3gb-usable-but-my-onboard-v0-fxmz3eq9l9xa1.jpg?width=4160&format=pjpg&auto=webp&s=2f410eb07726906505906aa8c0195c2131e20478)
I have 4gb ram but only 3.3gb usable? but my onboard graphics allocated is only 64mb howcome? : r/computers
I have installed 4GB RAM in my PC but it shows only 3.49 GB. How can I get a full 4GB RAM.Any Procedure? - Quora
![Why Windows Vista only sees 3GB memory in a PC with 4GB RAM and how Vista SP1 fools its users – 4sysops Why Windows Vista only sees 3GB memory in a PC with 4GB RAM and how Vista SP1 fools its users – 4sysops](https://4sysops.com/wp-content/uploads/2008/04/3gb.png)