Date: Tue, 17 Jul 2012 07:59:44 +0700 From: Erich Dollansky <erichfreebsdlist@ovitrap.com> To: freebsd-hardware@freebsd.org Cc: Andy Young <ayoung@mosaicarchive.com> Subject: Re: Server memory problems Message-ID: <201207170759.44995.erichfreebsdlist@ovitrap.com> In-Reply-To: <CAHMRaQeaKeGhaHOj%2B7RxQPjBs90uuMqNg3ttXKjgT4byP5TBsA@mail.gmail.com> References: <CAHMRaQeaKeGhaHOj%2B7RxQPjBs90uuMqNg3ttXKjgT4byP5TBsA@mail.gmail.com>
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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
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