RE: OT: Strange memory reading (hardware)
-Original Message- From: owner-freebsd-questi...@freebsd.org [mailto:owner-freebsd-questi...@freebsd.org] On Behalf Of Robert Sent: 17 June 2011 00:06 To: Chuck Swiger Cc: freebsd-questions@freebsd.org Subject: Re: OT: Strange memory reading (hardware) On Thu, 16 Jun 2011 15:11:22 -0700 Chuck Swiger cswi...@mac.com wrote: On Jun 16, 2011, at 2:10 PM, Robert wrote: I have tested with all of the sticks installed and with one at a time. When all of the sticks are installed, BIOS show a total of 2752 MB of RAM. If any of the sticks are installed alone in any of the four slots, BIOS then shows 960 MB instead of the 1024 one would expect. Sounds like the BIOS is stealing 64MB for video RAM. There's likely a BIOS setting which governs the size of this. As for not being able to access all 4GB, this is a FAQ. If you run a 32-bit system, the top gigabyte or so of address space is reserved for memory mapped I/O reservations like AGP, PCIe, etc. If your hardware is capable of running in 64-bit mode, do that. Regards, Chuck Thanks for the reply. I should have been clearer. During POST only 2752 MB is shown. Also, I am running the amd64 version of freenas. As I said, I am 100% sure this is a MOBO hardware problem and I was just trying to compute the math. Robert ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org The BIOS if it has shown 4096mb at post in the past would suggest that it is up to date at least enough to deal with 4gb of ram. I would say the likely hood of all 4 ram sticks developing the exact same problem at the same time while not impossible is highly unlikely. Do you have another machine you can test the ram in or stick of ram you can test on this motherboard? Not sure if your board will let you do this or not, but try 1 stick in bank 1 rather than bank 0, and see what it shows, you might also want to repeat the same test with 1 stick in bank 2 and then in bank 3. Bios settings for on board video will reserve some ram, some boards report the main ram figure less this figure others do not. You might want to try doing a bios reset with the jumper on the motherboard its self. Also give the ram slots a blow out with some aero duster could be there is some dirt in them. Other than running memtestx86 or the 64bit equivalent I am pretty much out of ideas. Regards Graeme ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: OT: Strange memory reading (hardware)
On Fri, 17 Jun 2011 14:18:53 +0100 Graeme Dargie a...@tangerine-army.co.uk wrote: Graeme Thanks for taking the time to reply. The BIOS if it has shown 4096mb at post in the past would suggest that it is up to date at least enough to deal with 4gb of ram. I would say the likely hood of all 4 ram sticks developing the exact same problem at the same time while not impossible is highly unlikely. Do you have another machine you can test the ram in or stick of ram you can test on this motherboard? Not sure if your board will let you do this or not, but try 1 stick in bank 1 rather than bank 0, and see what it shows, you might also want to repeat the same test with 1 stick in bank 2 and then in bank 3. Bios settings for on board video will reserve some ram, some boards report the main ram figure less this figure others do not. You might want to try doing a bios reset with the jumper on the motherboard its self. Also give the ram slots a blow out with some aero duster could be there is some dirt in them. Other than running memtestx86 or the 64bit equivalent I am pretty much out of ideas. Regards Graeme I cannot be sure that I have tried one individual stick in all slots but I know that I have had various sticks in various slots and all showed as 960MB. As far as I can tell this happened when I was converting this computer from a file server/desktop running 9 current to a freenas server. I rearranged all hard drives and removed some expansion cards (pci firewire, pci-e Sapphire) removed DVD drives and installed one CD drive. All in all I had my hands in the MB quite a bit and could have done something even though I was careful and always grounded myself. Of course, I had the power off whenever working inside the box. I will be taking the computer down in the next few days to add another drive to create a mirror. At that time I will do all that you recommended. i.e. Blow out the dust bunnies, double check all connectors, redress all cables and the run memtest. The MoBo is not new and has been in continuous use for many years. It is not inconceivable that I have a trace problem or a cold solder joint somewhere. Thanks again for your reply. Robert ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: OT: Strange memory reading (hardware)
On Jun 16, 2011, at 2:10 PM, Robert wrote: I have tested with all of the sticks installed and with one at a time. When all of the sticks are installed, BIOS show a total of 2752 MB of RAM. If any of the sticks are installed alone in any of the four slots, BIOS then shows 960 MB instead of the 1024 one would expect. Sounds like the BIOS is stealing 64MB for video RAM. There's likely a BIOS setting which governs the size of this. As for not being able to access all 4GB, this is a FAQ. If you run a 32-bit system, the top gigabyte or so of address space is reserved for memory mapped I/O reservations like AGP, PCIe, etc. If your hardware is capable of running in 64-bit mode, do that. Regards, -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: OT: Strange memory reading (hardware)
On Thu, 16 Jun 2011 15:11:22 -0700 Chuck Swiger cswi...@mac.com wrote: On Jun 16, 2011, at 2:10 PM, Robert wrote: I have tested with all of the sticks installed and with one at a time. When all of the sticks are installed, BIOS show a total of 2752 MB of RAM. If any of the sticks are installed alone in any of the four slots, BIOS then shows 960 MB instead of the 1024 one would expect. Sounds like the BIOS is stealing 64MB for video RAM. There's likely a BIOS setting which governs the size of this. As for not being able to access all 4GB, this is a FAQ. If you run a 32-bit system, the top gigabyte or so of address space is reserved for memory mapped I/O reservations like AGP, PCIe, etc. If your hardware is capable of running in 64-bit mode, do that. Regards, Chuck Thanks for the reply. I should have been clearer. During POST only 2752 MB is shown. Also, I am running the amd64 version of freenas. As I said, I am 100% sure this is a MOBO hardware problem and I was just trying to compute the math. Robert ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: OT: Strange memory reading (hardware)
On Thu, Jun 16, 2011 at 5:11 PM, Chuck Swiger cswi...@mac.com wrote: As for not being able to access all 4GB, this is a FAQ. If you run a 32-bit system, the top gigabyte or so of address space is reserved for memory mapped I/O reservations like AGP, PCIe, etc. If your hardware is capable of running in 64-bit mode, do that. If the issue is present at POST, then it's not related to the FAQ you are referring too. In that case, the only fix I'm aware of it to update the BIOS which isn't always possible. -- Adam Vande More ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: OT: Strange memory reading (hardware)
From owner-freebsd-questi...@freebsd.org Thu Jun 16 16:56:48 2011 Return-Path: owner-freebsd-questi...@freebsd.org Received: from mail.r-bonomi.com (ns2.r-bonomi.com [204.87.227.129]) by mail2.r-bonomi.com (8.14.4/rdb2) with ESMTP id p5GLumlV010091 for bon...@host120.r-bonomi.com; Thu, 16 Jun 2011 16:56:48 -0500 (CDT) Received: from mx2.freebsd.org (mx2.freebsd.org [69.147.83.53]) by mail.r-bonomi.com (8.14.3/rdb2) with ESMTP id p5GLudZT008266 for bon...@host128.r-bonomi.com; Thu, 16 Jun 2011 16:56:39 -0500 (CDT) Received: from hub.freebsd.org (hub.freebsd.org [IPv6:2001:4f8:fff6::36]) by mx2.freebsd.org (Postfix) with ESMTP id C936D1A7089; Thu, 16 Jun 2011 21:56:17 + (UTC) Received: from hub.freebsd.org (localhost [127.0.0.1]) by hub.freebsd.org (Postfix) with ESMTP id 4BD831065705; Thu, 16 Jun 2011 21:56:16 + (UTC) (envelope-from owner-freebsd-questi...@freebsd.org) Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 23E85106564A for freebsd-questions@freebsd.org; Thu, 16 Jun 2011 21:56:08 + (UTC) (envelope-from travelin...@cox.net) Received: from fed1rmfepo102.cox.net (fed1rmfepo102.cox.net [68.230.241.144]) by mx1.freebsd.org (Postfix) with ESMTP id DA3F68FC15 for freebsd-questions@freebsd.org; Thu, 16 Jun 2011 21:56:07 + (UTC) Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmfepo101.cox.net (InterMail vM.8.01.04.00 201-2260-137-20101110) with ESMTP id 20110616211036.xegd17030.fed1rmfepo101.cox@fed1rmimpo02.cox.net for freebsd-questions@freebsd.org; Thu, 16 Jun 2011 17:10:36 -0400 Received: from dell64 ([72.220.91.219]) by fed1rmimpo02.cox.net with bizsmtp id wlAb1g00m4jy6EY04lAbTe; Thu, 16 Jun 2011 17:10:35 -0400 X-CT-Score: 0.00 X-CT-RefID: str=0001.0A02020A.4DFA714C.000D,ss=1,re=0.000,fgs=0 X-CT-Spam: 0 X-Authority-Analysis: v=1.1 cv=SPmPLnc/YPzADk30Gyv1IeI7DxEcAgWbYPJMz2yeYQM= c=1 sm=1 a=psGcP66QiRcA:10 a=G8Uczd0VNMoA:10 a=kj9zAlcOel0A:10 a=olICo1sKaMXbpqbYUd6B5g==:17 a=FRAN3z_KNnB9zMti78sA:9 a=Vsz6ik2fFBHHgstyK_YA:7 a=CjuIK1q_8ugA:10 a=olICo1sKaMXbpqbYUd6B5g==:117 X-CM-Score: 0.00 Authentication-Results: cox.net; none Date: Thu, 16 Jun 2011 14:10:30 -0700 From: Robert travelin...@cox.net To: freebsd-questions@freebsd.org freebsd-questions@freebsd.org Message-ID: 20110616141030.0f3dc5f3@dell64 X-Mailer: Claws Mail 3.7.9 (GTK+ 2.22.1; amd64-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: OT: Strange memory reading (hardware) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions freebsd-questions.freebsd.org List-Unsubscribe: http://lists.freebsd.org/mailman/listinfo/freebsd-questions, mailto:freebsd-questions-requ...@freebsd.org?subject=unsubscribe List-Archive: http://lists.freebsd.org/pipermail/freebsd-questions List-Post: mailto:freebsd-questions@freebsd.org List-Help: mailto:freebsd-questions-requ...@freebsd.org?subject=help List-Subscribe: http://lists.freebsd.org/mailman/listinfo/freebsd-questions, mailto:freebsd-questions-requ...@freebsd.org?subject=subscribe Sender: owner-freebsd-questi...@freebsd.org Errors-To: owner-freebsd-questi...@freebsd.org Status: R Greetings I have a strange problem with memory on one of my computers. I have recently converted this computer to a NAS server. It is an Asus A8N-VM MB running freenas amd64. I have 4 one Gig memory sticks installed and as well as I can remember, it had always seen the 4 Gig of RAM. Most recently I had 9 current installed. The problem is not with freenas as it is absolutely hardware. I have tested with all of the sticks installed and with one at a time. When all of the sticks are installed, BIOS show a total of 2752 MB of RAM. If any of the sticks are installed alone in any of the four slots, BIOS then shows 960 MB instead of the 1024 one would expect. Quickly subtracting 960 from 1024 gets 64 MB missing. Hmmm, perhaps an address lead or data lead on the MB is open. This I can understand, but using any finagling factors I can think of, I can't get close to the missing total of 1344 MB (4096-2752). The freenas system runs quite well with the available memory but I was wondering if anyone could help me understand this problem. Thank you for reading this and i hope you are having a great day. Robert ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list
