So Do I Have a 32 bit or a 64 bit System?

[nujinini]

This laptop has been with me for more than three years already but it is only now I notice this output. Particularly the ones in Bold.

jun@jun:~$ lscpu
Architecture:          i686
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                2
On-line CPU(s) list:   0,1
Thread(s) per core:    1
Core(s) per socket:    2
CPU socket(s):         1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 15
Stepping:              13
CPU MHz:               2166.000
BogoMIPS:              4322.39
L1d cache:             32K
L1i cache:             32K
L2 cache:              1024K
jun@jun:~$

Does this mean I can install say..... an Ubuntu 64 bit in this same machine and add more RAMs and espect my machine to be able to make use of the RAM?

I read that if my system is 32 bit, it can only make use of 3G RAM and anything extra will not be utilized.

I have always installed a 32 bit version in this machine and used a 3G RAM. I want to upgrade to 8G if ever.

Thanks!


regards,

nujinini

[oz]

Yes, that means it will operate with a 32-bit OS, or a 64-bit OS. You'll need the 64-bit OS if you install 8 GB of RAM and want it all to be used.

[nujinini]

Thanks Oz!

That's a revelation for me after all those years! 8G RAM here we go!!!

[elija]

Even if it turns out to be 32 bit (the op modes suggest it won't) you can install a PAE kernel which will allow it to address upto 64GB RAM although each process will be limited to 4GB.

[nujinini]

Even if it turns out to be 32 bit (the op modes suggest it won't) you can install a PAE kernel which will allow it to address upto 64GB RAM although each process will be limited to 4GB.

This is good information even if I don't understand this at the moment!

Thanks eljah!