My Acer Aspire has 1GB RAM (2x512MB) When running Ubuntu 11.10, it only reports having 432MB. This would be corect if I was only using 512MB of RAM.
Before the upgrade, it showed the correct amount of memory and performed much faster
My Acer Aspire has 1GB RAM (2x512MB) When running Ubuntu 11.10, it only reports having 432MB. This would be corect if I was only using 512MB of RAM.
Before the upgrade, it showed the correct amount of memory and performed much faster
There are two senarios that has happened either something is wrong with your RAM DIMMs or something is wrong with the software on your computer.
RAM DIMMS:
The system:
By the way, what does BIOS say of your amount of RAM?
If this doesn't work, add a comment and let me know.
Does the bios report the same amount of ram? When you boot the computer, and before reaching grub screen you should see messages reporting the ram, hard drive, etc detected. If the ram detected is wrong there, then the problem is in the bios, not ubuntu.
I had this problem before. Sometimes removing and installing the ram again from the mother board solves it. And sometimes resetting the bios to default forces it to detect the ram properly.
Goog luck!