Date: Thu, 1 Sep 2005 09:49:02 -0400 From: Martin Cracauer <cracauer@cons.org> To: freebsd-amd64@freebsd.org Subject: Re: 4 GB RAM showing up as 3, BIOS memory hole and all that Message-ID: <20050901094902.A39272@cons.org> In-Reply-To: <20050815125657.A92343@cons.org>; from cracauer@cons.org on Mon, Aug 15, 2005 at 12:56:57PM -0400 References: <20050815125657.A92343@cons.org>
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Martin Cracauer wrote on Mon, Aug 15, 2005 at 12:56:57PM -0400: > Somebody here must know this: > > I have a Dual Opteron board with 4x 1 GB RAM. The memory count in the > BIOS goes up to 640 KB + 3072 MB, and FreeBSD says it sees 3 GB. For what it's worth, I have my top gigabyte back. I updated the BIOS and after fatfingering the update and getting a new BIOS chip from Arima (overnighted for free with no questions asked, great service!) I now see all 4 GB minus the AGP area of 128-256MB. So cutting off all of the top gigabyte was indeed a BIOS problem. The old BIOS also misconfigued something about my RAM which had slowed it down severely. The new BIOS makes the board a pretty fast one considering I only have PC2100 memory. As always, dmesg, pciconf, mptable etc is on http://www.cons.org/cracauer/machines/wings/ So just as advice for people having the problem: this is an area where initial BIOSes often seems to be overly challenged. Martin -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Martin Cracauer <cracauer@cons.org> http://www.cons.org/cracauer/ No warranty. This email is probably produced by one of my cats stepping on the keys. No, I don't have an infinite number of cats.
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