0
votes
0answers
102 views

only showing 3.1gb ram and not 8gb

First time posting. I had a win7 machine with 8gb ddr2 ram and wanted to build a ubuntu machine. I installed 64bit from the downloaded cd and all went ok. On my bios pages it shows 8gb yet under ...
0
votes
1answer
303 views

Only 3GB of RAM with PAE kernel on 12.04

I've installed 4GB RAM on my Thinkpad X60 running Ubuntu 12.04. Then I've installed PAE-enabled kernel. Now uname -r outputs 3.2.0-50-generic-pae My CPU is capable of PAE: $ grep pae /proc/cpuinfo ...
1
vote
1answer
447 views

java not allowing for the use of all 8gb of ram

I have a 32bit version of Ubuntu server with PAE active allow for the full use of the 8gb of RAM but I can't use more than 2gb of RAM in Java. I run the command java -Xms6G -Xmx7G -jar server.jar ...
0
votes
0answers
708 views

PAE on Ubuntu 12.04

I am having trouble using PAE on Ubuntu 12.04 LTS 32bit. I recently upgraded from 4 to 8gb of RAM but PAE doesn't appear to have picked this up. When I run grep --color=always -i PAE /proc/cpuinfo I ...
1
vote
3answers
1k views

Do I need to do anything after upgrading my ram from 2gb tp 4gb(2x2gb)

I got a new 2gb ram and i am going to add it along with my existing 2gb card making it 2x2gb=4gb ram. do i have to do anything extra to make it work as 4gb fully? Anything to do with the PAE kernel ...
0
votes
4answers
2k views

4GB RAM not detected

I've got 4GB on my machine (two cards of 2GB) although the command free -m says: total: 2001 used: 1816 free: 185 I've got 12.04 and I think PAE should be installed and enabled automatically. ...
7
votes
3answers
11k views

For a 32-bit kernel, what are the pros/cons of PAE vs. non-PAE?

I am using Ubuntu 12.04 32-bit. My kernels are PAE kernels. I know these are the kernels we can use for 32-bit OS which have 4 GB RAM, to utilize all 4GB of RAM. My system is a 32-bit system. So I ...
7
votes
3answers
6k views

Ubuntu 12.04 LTS 32bit does not detect 4Gb ram

I have recently installed 4Gb of ram for an existing 12.04 32bit Ubuntu. It's not being recognised, only 3.2Gb is showing, See: administrator@Root2:~$ free total used free ...
3
votes
2answers
2k views

Lenovo T60P with 4GB of RAM, Ubuntu 11.04 and 11.10 only see 3GB

I have a Lenovo ThinkPad T60P with 4GB of memory (BIOS sees all 4GB RAM). I have installed Ubuntu 11.04 and 11.10 and both are only recognizing 3GB RAM. Please advise. Thanks. Updates Used 32bit ...
18
votes
6answers
3k views

8 GB RAM on 64 bit processor using 32 bit Ubuntu

I'm going to repeat the title in a longer word. Can a 32 bit Ubuntu address more than 4 gb of RAM on a 64 bit processor?