From owner-freebsd-questions Thu Mar 20 13:48:16 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id NAA09677 for questions-outgoing; Thu, 20 Mar 1997 13:48:16 -0800 (PST) Received: from gdi.uoregon.edu (gdi.uoregon.edu [128.223.170.30]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id NAA09666 for ; Thu, 20 Mar 1997 13:48:09 -0800 (PST) Received: from localhost (dwhite@localhost) by gdi.uoregon.edu (8.8.5/8.6.12) with SMTP id NAA04914; Thu, 20 Mar 1997 13:47:55 -0800 (PST) Date: Thu, 20 Mar 1997 13:47:55 -0800 (PST) From: Doug White X-Sender: dwhite@localhost Reply-To: Doug White To: "Kenneth R. Westerback" cc: freebsd-questions@freebsd.org Subject: Re: BIOS basemem (639K) != RTC basemem (640K) ... In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Wed, 19 Mar 1997, Kenneth R. Westerback wrote: > This message appears during boot up (on every version I've tried so far I > think : 2.1.x, 2.2R, 3.0): > > BIOS basemem (639K) != RTC basemem (640K), setting to BIOS value > > I have been assured the message is harmless, but I am (as what FreeBSD'er > would not be!) curious about what it means. Why is BIOS basemem detected > as 639K when my BIOS claims it has 640K? And what is RTC basemem? This is BIOS vs. CMOS value. Some CMOSs take over the final k or so for configuration data (??!?!?) but still report the machine having "640k". Search the mail archives in hackers -- there was a discussion on this a long time ago. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major