Linux - HardwareThis forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month. Click here for more info.
I have a custom workstation with all the parameters given on the bottom of my message.
I have 6 GB of RAM memory installed (8 slots are available) on my mainboard. BIOS identifies all 6 GB upon booting (!!! point), whereas Linux sees only 5 GB (:-((( ).
Should be noted, however, that 6 memory slots are attached nonsymmetrically according with the manual in order to have all 6 GB available (4 for one CPU and 2 for another one, 2 slots are still unused).
I've been running current installation since 4-5 months and it never found 6 GB after (re)booting.
I do not address this issue to the linux type/version, since I got the same with Fedora5-64bit and Debian-amd64.
If someone knows how to get the whole memory working, pls, let me know !!!
I suggest you run memtest86 from the installation CD (before booting the system). You may have a bad memory module.
I bought a custom built box a few months ago, and had problems from the first day because of two bad memory modules. Once the bad ram was replaced, everything worked fine.
Well, when I tried to check memory with the Suse CD "test memory" utility, I discovered that it again doesn't find all 6GB memory from the beginning of analysis, but displays only 5GB memory available.
Then, I tried to find out what's going on and step by step disassembled-reassembled all the memory wafles many times in different order trying to catch the bad one. All look operable and work itself (in pairs), both BIOS and linux identify them.
Interestingly, my SMP motherboard "likes" only some unique/compulsory combinations: e.g., sometimes when I rig 4GB (4 waffles) - only 3GB are seen both by BIOS and by linux, but each one works itself. Also, SMP mainboard doesn't like odd numbers, like 3 and 5 GB installed are seen as 2 and 4, respectively.
Weird... and perplexing.
Perhaps I have to purchase and rig the rest 2x1 GB wafles to get the whole of the memory available...
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.