Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964987AbWJ2EFT (ORCPT ); Sun, 29 Oct 2006 00:05:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964988AbWJ2EFT (ORCPT ); Sun, 29 Oct 2006 00:05:19 -0400 Received: from 8.ctyme.com ([69.50.231.8]:58276 "EHLO darwin.ctyme.com") by vger.kernel.org with ESMTP id S964987AbWJ2EFS (ORCPT ); Sun, 29 Oct 2006 00:05:18 -0400 Message-ID: <4544287C.409@perkel.com> Date: Sat, 28 Oct 2006 21:05:16 -0700 From: Marc Perkel User-Agent: Thunderbird 1.5.0.7 (Windows/20060909) MIME-Version: 1.0 To: Bill Davidsen CC: Kernel Mailing List Subject: Re: Hardware Problem - Asus A8N-VM CSM References: <1449F58C868D8D4E9C72945771150BDF153767@SAUSEXMB1.amd.com> <454236C0.2070805@perkel.com> <4543E457.80203@tmr.com> In-Reply-To: <4543E457.80203@tmr.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spamfilter-host: darwin.ctyme.com - http://www.junkemailfilter.com Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2133 Lines: 61 Bill Davidsen wrote: > Marc Perkel wrote: >> >> >> Langsdorf, Mark wrote: >>>>> The problem. 2 out of the 4 sees all 4 gigs of ram. The other 2 >>>>> see only 2.8 gigs of ram. And it's hardware related because in the >>>>> bios setup the ones that show 2.8 show it in the bios. >>>>> >>>>> The motherboards were not prchased at the same time. All have >>>>> different brands of ram. And the processors are different. The 2 >>>>> that don't see all the ram are the newest ones. >>>>> >>>>> I tried swapping ram between one that saw 2.8 gigs and one that >>>>> saw 4 gigs and the problem stays with the motherboard. >>>>> I haven't yet swapped out the processors. >>>>> >>>>> So - I'm a little stumped. Can someone point me in the right >>>>> direction? >>>>> >>> >>> Usually, missing memory comes from the PCI I/O hole, or the >>> IOMMU/AGP/framebuffer overlays. Does your BIOS have an >>> options for creating a memory hole or hoisting memory? If >>> so, are the settings between the 4G machines different from >>> the 2.8G machines? >>> >>> Also, do you have an IOMMU aperture enabled and if so, how >>> large? >>> >>> Are there any hardware differences between the systems, like >>> different AGP or PCI graphics cards? >>> >>> >>>> Answering my own question perhaps. Could it be related to whether >>>> or not the processor is a "revision e" chip? >>>> >>> >>> Possibly, but I'd expect the RevE parts to see more DRAM than >>> the earlier parts. >>> >>> >>> >> >> I fixed the problem. It wasn't a Revision E issue after all. I just >> pulled the battery and when it came up clean it saw all the memory. >> Thanks for your help. >> > Would have been interesting to use the "reset to factory defaults" > option, just to see if some bit isn't set to known state doing that. > Actually that's what it tuened out to be. It had nothing to do with Revision E. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/