Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161433AbWJZQeL (ORCPT ); Thu, 26 Oct 2006 12:34:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161434AbWJZQeK (ORCPT ); Thu, 26 Oct 2006 12:34:10 -0400 Received: from outbound-ash.frontbridge.com ([206.16.192.249]:4746 "EHLO outbound2-ash-R.bigfish.com") by vger.kernel.org with ESMTP id S1161433AbWJZQeJ convert rfc822-to-8bit (ORCPT ); Thu, 26 Oct 2006 12:34:09 -0400 X-BigFish: VP X-Server-Uuid: 5FC0E2DF-CD44-48CD-883A-0ED95B391E89 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: Hardware Problem - Asus A8N-VM CSM Date: Thu, 26 Oct 2006 11:33:34 -0500 Message-ID: <1449F58C868D8D4E9C72945771150BDF153767@SAUSEXMB1.amd.com> In-Reply-To: <4540C76F.9050403@perkel.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Hardware Problem - Asus A8N-VM CSM Thread-Index: Acb5DDNt9ctZU4K3REOOvu001g8NlgAD8xhw From: "Langsdorf, Mark" To: "Marc Perkel" , linux-kernel@vger.kernel.org X-OriginalArrivalTime: 26 Oct 2006 16:33:35.0021 (UTC) FILETIME=[7B550DD0:01C6F91C] X-WSS-ID: 695E3CD50Z4593284-02-01 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1549 Lines: 42 > > 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. -Mark Langsdorf AMD, Inc. - 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/