Installation problem with Mac Pro RAM
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From: Warren Oates on 15 Feb 2010 07:33 In article <4b78ae52$0$24279$c3e8da3(a)news.astraweb.com>, JF Mezei <jfmezei.spamnot(a)vaxination.ca> wrote: > Mine didn't say that. However, perhaps one might need 4gig in slot 1, > leave slot 2 empty, and then put 1gig in slots 3 and 4. Putting 1gig in > slot 2 would have unequal memory in slots 1 and 2. The older Mac Pros had a system of "risers" and matched pairs requirements. OWC are pretty good with info: http://eshop.macsales.com/shop/memory/Mac-Pro-Memory I have the oldest Mac Pro in the world, I think. It won't even boot the 64 bit colonel (well, not without a hack), but I've got 10 gigs of RAM all nicely ECC enabled. -- Very old woody beets will never cook tender. -- Fannie Farmer
From: Salmon Egg on 16 Feb 2010 10:06 In article <jollyroger-319F9D.13260414022010(a)news.individual.net>, Jolly Roger <jollyroger(a)pobox.com> wrote: > In article <1jdwgze.2q7lfh1wlpnnjN%mikePOST(a)TOGROUPmacconsult.com>, > mikePOST(a)TOGROUPmacconsult.com (Mike Rosenberg) wrote: > > > Salmon Egg <SalmonEgg(a)sbcglobal.net> wrote: > > Msnip> > > > > > > In the absence of a memory location map, which I am still trying to dig > > > out of the Apple site, my strategy will be to add a 1GB module to Slot > > > 2. and go on from there. > > > > Apple has specific instructions in the manual that came with your Mac > > Pro. Follow those instructions and things should be fine. Vary from them > > at all and the Mac won't access all the RAM. > > Right. I don't understand why he didn't read the instructions before > inserting a stick of RAM into the machine to begin with. Puzzling... I > certainly figured cracking open the manual wasn't too much trouble when > I upgraded mine to 6 GB! One of my problems is that I do not see all that well. If possible, I try to get electronic versions of the "Everything Mac" manual that came with the computer. I read in inverse video. To compound the problem, the manual is printed using a gray ink as opposed to black ink. I am also pretty sure that the electronic version I am using is the same as my hard copy. On page 47 the instructions say to fill in the slots in order starting at Slot 1. It implies that there may be a problem if the memory modules are not all of the same size, but they do not offer a solution. I do have a quad core version. While I have no problem with a single 4GB module in Slot 1, I do run into problems upon adding 1GB modules in other slots. It is not clear to me that I can use all my modules to get a total of 7GB. I have been away from this newsgroup for a day or so. In fiddling with RAM I think I reset my router to factory settings. I have not yet fully recovered from that. At least computers keep me from tagging public areas with spray cans. :~) Bill -- An old man would be better off never having been born.
From: Larry Gusaas on 16 Feb 2010 12:40 On 2010/02/16 9:06 AM Salmon Egg wrote: > While I have no problem with a single 4GB module in Slot 1, I do run > into problems upon adding 1GB modules in other slots. It is not clear to > me that I can use all my modules to get a total of 7GB. > Other World Computing <http://eshop.macsales.com/shop/memory/Mac-Pro-Memory> has the following comment on 4GB modules. "4GB Module sets require that all installed modules be of the same kind OWC 4GB module (p/n OWC8566D3MPE4GB)." -- Larry I. Gusaas Moose Jaw, Saskatchewan Canada Website: http://larry-gusaas.com "An artist is never ahead of his time but most people are far behind theirs." - Edgard Varese
From: Salmon Egg on 16 Feb 2010 12:52 In article <hlelau$cmb$1(a)news.eternal-september.org>, Larry Gusaas <larry.gusaas(a)gmail.com> wrote: > On 2010/02/16 9:06 AM Salmon Egg wrote: > > While I have no problem with a single 4GB module in Slot 1, I do run > > into problems upon adding 1GB modules in other slots. It is not clear to > > me that I can use all my modules to get a total of 7GB. > > > > Other World Computing > <http://eshop.macsales.com/shop/memory/Mac-Pro-Memory> has the following > comment on 4GB modules. > > "4GB Module sets require that all installed modules be of the same > kind OWC 4GB module (p/n OWC8566D3MPE4GB)." I am not surprised. It is a bummer. Thanks. Bill -- An old man would be better off never having been born.
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