Are you using a 64 or 32 bit version of Fedora 6? Cheers, Jan <div>On 5/2/07, Jegadeesh <<a href="mailto:kovaiteam@gmail.com">kovaiteam@gmail.com</a> > wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi, I have 4GB memory in my machine . The machine is four Intel(R) Xeon(R) CPU - 1.60GHz processors box. The bios correctly shows 4GB memory. Initially the machine had Redhat Enterprise Linux 3 on it and the machine showed all 4GB memory . Now I have reinstalled the OS to FC6 . But now machine shows only 3 GB memory. We have tried recompiling the linux kernel with following options but still it didnt show all the available memory (4GB) Method :1 CONFIG_HIGHMEM4G=y CONFIG_HIGHMEM=y Method : 2 CONFIG_HIGHMEM64G=y CONFIG_HIGHMEM=y We have also tried passing boot option mem=4096M to the kernel without any luck. What it could be the reason? How to fix this issue? Thanks in advance, -Jegadeesh -- fedora-list mailing list <a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com</a> To unsubscribe: <a href="https://www.redhat.com/mailman/listinfo/fedora-list">https://www.redhat.com/mailman/listinfo/fedora-list </a> </blockquote></div> -- UNIX is user friendly, it's just picky about who it's friends are.