On 09/21/2009 06:06 PM, Hiisi wrote: > Original Poster, sorry for intruding the thread, but I have small > question to ask for those Gurus. > How much memory can I have on my computer? It's 32 bit desktop: It depends on a lot of things, but mostly your system motherboard. Different boards allocate their memory differently. Especially with 32-bit only CPUs. > Linux imt.ru 2.6.30.5-43.fc11.i586 #1 SMP Thu Aug 27 21:18:54 EDT 2009 > i686 i686 i386 GNU/Linux > Memory section of lshw says: > *-memory > description: System Memory > physical id: 19 > slot: System board or motherboard > size: 512MiB > capacity: 2GiB > > If I understand that correctly I'm not allowed to add more that 2GiB? That's what the above seems to indicate for your motherboard. > Using PAE kernel will I be able to install 4Gib? No, if the motherboard isn't capable of handling more than 2GiB, then that's your max. My laptop has a max of 2GiB as well. And its running an Intel Core2 CPU which is 64-bits. But, it can't use more than 2GiB of RAM. > Thanks for attention! Each mother board has its own restrictions. It should be in the User Guide for either your system (if its a brand name system) or your mother board. I have found the site: www.crucial.com is a good repository for amounts of MAX memory (they tell you what the max amounts are if you can tell them the system/motherboard brand and model number. I have had computers with max motherboard amounts of: 384MiB, 512MiB, 1GiB, 2GiB, 4GiB*, and I've seen systems with max amounts of 8GiB, 16GiB, and more. I put a "*" next to the 4GiB amount because sometimes motherboard designs limit the actual amount of available memory to 3GiB or 3.5GiB due to memory mappings (esp with 32-bit CPUs), and most 32-bit OSes can't use more than 4GiB max anyways. Also, sometimes, the CMOS Setup has a setting controlling how much memory is made available to the OS. PAE (Physical Address Extensions) can be used with most modern CPUs (when run in 32-bit mode), but since most modern CPUs are 64-bit capable, why would you run a 32-bit OS on them? Even Windows is now shipping 64-bit Vista and Windows-7 on new processors. The default kernels for Fedora 11 are PAE capable, so if your motherboard can see/use more than 3GiB, you should get use of the max amount of memory. I've read a couple of good explanations online about the limits of memory on 32-bit motherboards. Google for them, they're pretty easy to find. -- Kevin J. Cummings kjchome@xxxxxxx cummings@xxxxxxxxxxxxxxxxxx cummings@xxxxxxxxxxxxxxxxxxxxxxx Registered Linux User #1232 (http://counter.li.org) -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
