Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!weretis.net!feeder1.news.weretis.net!news.solani.org!.POSTED!not-for-mail From: ErikRS Newsgroups: comp.sys.mac.system Subject: Memory? Date: Sun, 28 Dec 2014 03:19:24 +0100 Organization: solani.org Lines: 57 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-Trace: solani.org 1419733164 10439 eJwFwQkBwDAIA0BLfCGrHArFv4TdwVOzGYkMLFagw/YgRbanzN/n3ijR8+xWPNEd1DJ55toPFEERIA== (28 Dec 2014 02:19:24 GMT) X-Complaints-To: abuse@news.solani.org NNTP-Posting-Date: Sun, 28 Dec 2014 02:19:24 +0000 (UTC) User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5; rv:16.0) Gecko/20121026 Firefox/16.0 SeaMonkey/2.13.2 X-User-ID: eJwFwYEBwDAEBMCV8J4YRzT2H6F3RGhMejCcy3VnwQ5Hv6dWAmt7reTpu/s2ZWAwQYF1kz8FdRA6 Cancel-Lock: sha1:kCRvL5M0qxXfTp1cyeFa1wzIyCY= X-NNTP-Posting-Host: eJwFwQERACAIA8BKKAxcHOVY/wj+w3NlVyQyIOgmHRP7OFehn5wU21FhFj16ZcQu2GRp7gcHXhCN Xref: csiph.com comp.sys.mac.system:67901 A friend of mine has bought an old MacPro1.1 with only 6gb of installed=20 memory, so he bought a very cheap 'kit' of 8x 4gb Apple certified memory = moduels, Samsung DDR2 PC-5300 667mhz ECC FB DIMM 1,8v CL5,5 - i.e. the=20 correct type of memory with the large cooler ribbons. Installed it and started up. Everything looked fine until suddenly the=20 macine shut down without any noticable reason. Just before shutting down = the fan started to act like a hurricane... He is mostly using the machine for video rendering and making DVDs. He's = working as a semi-professional video photographer making wedding DVDs=20 using professional Panasonic Firewire compatible videocams and GoPro=20 cams. He's running 10.7.5 + Premiere Pro. My guess is/was that it could be a cooling problem. So I advised him to=20 try with 1 pair at a time to see how it would behave. Right now he's=20 having 24gb installed and everything works just fine. This means that he = now has 6x 4gb modules - Riser A 1+2 & 3+4 + Riser B 1+2. We've concluded that it must be Riser B 3+4 that may have a problem, but = none of us are that sure that the problem would be cured by replacing=20 Riser B. - A quick search on many pages with spareparts also showed that = it was mostly used Riser A's that were for sale and only pairs of new=20 Riser A+B are for sale. There are lots discussions about the 24/32gb possibilities in a MP1.1=20 and MP2.1. - some say 16gb is max., some 24gb and some 32gb in a=20 MP1.1/2.1 DualCore Xeon with only 4 cores, but also that 32gb works fine = in the 8-core versions. This stated on the Apple discussion pages. And=20 as far as I can read the Apple tech pages, the risers in a MP1.1/2.1 are = /serial-coupled/ and not /paralle-coupled/. This means that Riser B 3+4=20 are the last slots in the chain. - From and included MP3.1 and up the=20 risers are /parallel-coupled/ - directly to the CPU... So my question is... Has anyone here been able to run a MP1.1/2.1 4-core = with 32gb of physical memory? - If so, how? Did you use specific brands=20 etc.? Cheers, Erik Richard --=20 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Erik Richard S=F8rensen, Member of ADC, NisusWriter - The Future In Multilingual Text Processing - www.nisus.com Openoffice.org - The Modern Productivity Solution - www.openoffice.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~