Date: Thu, 19 Jul 2012 11:08:23 -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: <CAHMRaQdfjicpKS405Hp%2BsYz_=U-txowrbC7Mi9K2aFAZNqs_XQ@mail.gmail.com> In-Reply-To: <201207180650.11035.erichfreebsdlist@ovitrap.com> References: <CAHMRaQeaKeGhaHOj%2B7RxQPjBs90uuMqNg3ttXKjgT4byP5TBsA@mail.gmail.com> <201207170759.44995.erichfreebsdlist@ovitrap.com> <CAHMRaQfrg-TZU1X%2BjNe%2BLj5W_Zg2jK%2BNHD2xSi8x-oSt7AfJRA@mail.gmail.com> <201207180650.11035.erichfreebsdlist@ovitrap.com>
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Hi Erich, > because the machine needs more electricity with the extra modules. If it is at the limits without, it could go behind > with the additional modules installed. Interesting. The chassis has dual 900W power supplies. Apart from simply replacing them, I am not sure how I can verify whether the power supply is the issue. > You did not answer the question regarding ECC. The memory modules I added are listed on Newegg as Kingston 8 GB 240-Pin DDRS SDRAM ECC Registered DDR3 1333 Server Memory. So yes they have ECC. > Did you mix the modules? Yes. There is a mix of modules in there. The original 32 GB of memory that I put in to begin with are not the exact same module. They are Hynix 8GB PC3-10600 DDR3-1333MHz ECC Registered CL9 240-Pin DIMM Dual that came from the hardware integrator we bought the Supermicro chassis from. At this point there are 32 of the Hynix and 32 of the Kingston and it is working ok so simply mixing them isn't causing an issue. > Can you insert modules only into the sockets which seem to fail and leave all other empty? Ok. I can try that. Thanks for the help!! Andy On Tue, Jul 17, 2012 at 7:50 PM, Erich Dollansky < erichfreebsdlist@ovitrap.com> wrote: > Hi, > > On Wednesday 18 July 2012 00:16:33 Andy Young wrote: > > > > Why would the power supply be suspect since the machine is perfectly > stable > > with 64 GB of memory in it? > > > because the machine needs more electricity with the extra modules. If it > is at the limits without, it could go behind with the additional modules > installed. > > > The server won't stay up long enough to run memtest. > > Also when you boot directly into the memory test? > > You did not answer the question regarding ECC. > > Did you mix the modules? > > Put modules back in reversed order. > > Can you insert modules only into the sockets which seem to fail and leave > all other empty? > > If you can and the machine works then, I assume it is caused by the power > supply. If the machine fails then, it is the motherboard. > > At least it looks like this from distance as you said that it is most > unlikely that the modules are faulty. > > Erich > > > > 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/>; > > > -- 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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