From owner-freebsd-questions Fri Apr 13 9:32: 6 2001 Delivered-To: freebsd-questions@freebsd.org Received: from kevine01.ugaloo.org (h204-50-7-34.dccnet.com [204.50.7.34]) by hub.freebsd.org (Postfix) with ESMTP id 5446A37B505; Fri, 13 Apr 2001 09:32:00 -0700 (PDT) (envelope-from kg@dccnet.com) Received: from dccnet.com (localhost [127.0.0.1]) by kevine01.ugaloo.org (Postfix) with ESMTP id 2E74A1C9; Fri, 13 Apr 2001 09:32:03 -0700 (PDT) Message-ID: <3AD72A02.3D6CD329@dccnet.com> Date: Fri, 13 Apr 2001 09:32:02 -0700 From: "Kevin G. Eliuk" X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.2.12 i386) X-Accept-Language: en MIME-Version: 1.0 To: "Jonathan M. Slivko" Cc: questions@freebsd.org, newbies@freebsd.org Subject: Re: Why is my machine only using 64MB of RAM? References: <008501c0c436$adea85c0$01000001@darkstar> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > "Jonathan M. Slivko" wrote: > Hello all, > > I have a Dell Dimension XPS T500 which I had installed FreeBSD > 4.2-RELEASE on (from the ISO) and on system bootup, dmesg reports > that there is only 65MB of RAM available to the system. However, this > is not the case. This machine has 2 sticks, each of 128MB of RAM for > a total of 256MB. However, when the machine is in Windows, all 256MB > of RAM is detected and used and everything is working fine. I have > since deinstalled FreeBSD from my system and am now currently running > Windows, trying to figure all of this out. Any insight would be > appreciated, as I want to get back to using FreeBSD as soon as > possible. It is explained in /sys/i386/conf/LINT as this <4.3-RC FreeBSD>. < snip > # MAXMEM specifies the amount of RAM on the machine; if this is not # specified, FreeBSD will first read the amount of memory from the CMOS # RAM, so the amount of memory will initially be limited to 64MB or 16MB # depending on the BIOS. If the BIOS reports 64MB, a memory probe will # then attempt to detect the installed amount of RAM. If this probe # fails to detect >64MB RAM you will have to use the MAXMEM option. # The amount is in kilobytes, so for a machine with 128MB of RAM, it would # be 131072 (128 * 1024). < snip > options MAXMEM="(128*1024)" < snip > So compile your kernel, including the amount of memory that you have installed and it will use the entire amount of installed RAM. -- Regards, | Any and all errors in spelling are the | intellectual property of the author and Kevin G. Eliuk | are therefore governed by the copyright | laws of the jurisdiction in which they (604) 886-4040 | are received. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message