Date: Tue, 17 Jul 2012 13:16:33 -0400 From: Andy Young <ayoung@mosaicarchive.com> To: Erich Dollansky <erichfreebsdlist@ovitrap.com> Cc: freebsd-hardware@freebsd.org Subject: Re: Server memory problems Message-ID: <CAHMRaQfrg-TZU1X%2BjNe%2BLj5W_Zg2jK%2BNHD2xSi8x-oSt7AfJRA@mail.gmail.com> In-Reply-To: <201207170759.44995.erichfreebsdlist@ovitrap.com> References: <CAHMRaQeaKeGhaHOj%2B7RxQPjBs90uuMqNg3ttXKjgT4byP5TBsA@mail.gmail.com> <201207170759.44995.erichfreebsdlist@ovitrap.com>
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Hi Erich, Why would the power supply be suspect since the machine is perfectly stable with 64 GB of memory in it? The server won't stay up long enough to run memtest. Andy On Mon, Jul 16, 2012 at 8:59 PM, Erich Dollansky < erichfreebsdlist@ovitrap.com> wrote: > Hi, > > On Tuesday 17 July 2012 06:45:18 Andy Young wrote: > > I am having trouble with one of our servers and I'm not sure what to try > > next. It has a Supermicro H8DGi-F motherboard with two 16-core AMD > > processors and two memory banks, one for each processor. When I > originally > > built it, I only had one processor and 40 GB of ram. Everything worked > > awesome. I recently upgraded it, adding another processor and another 40 > GB > > of ram. It was incredibly unstable and constantly rebooted within minute > or > > two of uptime, sometimes it wouldn't even boot all the way before > crashing > > and rebooting again. Seemed like a memory issue so I scaled it back to > two > > processors and 32 GB (4x8GB) of ram. Worked well so I added the > remaining 8 > > GB sticks I had, bringing it up to 64 GB. Still worked great. The sticks > I > > had left were a mix and match variety of 8GB and 4GB sticks. Thinking > maybe > > there was some problem with mixing them, I ordered more 8GB memory just > > like the ones in the box. While waiting for the new memory, the machine > > performed great with no issues. New memory arrived and I added two more > 8GB > > sticks. Immediately the constant crashing returned. It seems really > > unlikely that I got bad memory in two separate orders. Does anyone have > any > > other ideas? Again, its perfectly stable with two processors and 64 GB of > > memory but goes nuts when I more. > > > could it be caused by the power supply? > > Did you run a memory test? > > If possible, try different power supplies. > > > I really appreciate the help!! > > > > Motherboard: Supermicro H8DGi-F > > CPU: 2 x AMD 6274 (2.2 Ghz 16-core) > > Memory: Kingston 8GB DDR3 1333 > > No ECC? > > Erich > -- Andrew Young Mosaic Storage Systems, Inc http://www.mosaicarchive.com/ Follow us on: Twitter <https://twitter.com/#!/MosaicArchive>, Facebook<http://www.facebook.com/MosaicArchive>; , Google Plus<https://plus.google.com/b/102077382489657821832/https://plus.google.com/b/104681960235222388167/104681960235222388167/posts>; , Pinterest <http://pinterest.com/mosaicarchive/>;
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