I'm in the process of upgrading the memory on my 1st gen Mac Pro. (2 x 3.0 Ghz Xeon). Apple publishes a memory max of 16GB., but I have seen references to these machines running more. My question is, has anyone successfully run larger configurations of memory, and will these systems recognize 4GB modules?
View 1 RepliesI have 2 1GB sticks left over after updating my 2.2GHZ Macbook's RAM to 4GB. My friend wants my old RAM modules, but his macbook is the black one from 2006. Will this RAM work in his blackbook?
View 1 Replies View RelatedI have a Black MacBook (Early 2008). I think that I still have the factory standard RAM sticks (I bought the Mac used from a friend). I noticed today that I am running on only one gig of RAM even though I have two gigs of memory.
View 2 Replies View RelatedI installed 4x2GB memory modules. Now, I have a "Memory Slot Utility" pop-up(The memory modules are installed in the recommended slots) that pops up every time I start my computer. How do I get rid of this notice permanently?
Info:
Mac Pro, Mac OS X (10.7)
While browsing around I've stumbled over a few references to things like "tri-channel memory" and such. From what I understand (not that good with these things) some computer architectures / CPUs are optimized for using 3 memory modules, and some for using pairs (2 or 4).
I just read some benchmark tests of the i7 with different memory configurations, and the 12Gb was is most cases on par or better than all the others when it came to performance, even better than the 16Gb one. Is the new iMac (i7) best suited to use 3 memory modules?
I bought a refurbished Mac Pro (8 core) from the apple store and added 4 Gb (2x2Gb) to the 2 Gb tht came installed. I am having a peculiar problem in seeing all four of the memory modules. The only setup that shows all 6 Gb of the memory is to have the modules in the following format: a) 2Gb modules on Riser A, positions 1 and 3 plus 1 Gb mods on Riser B positions 1 and 3; b) 2 Gb and 1 Gb mods on Riser A positions 1 and 3, respectively, and the same on Riser B.
When I put them in the logically (and aesthetically better) intuitive configuration of paired mods in positions 1 and 2 of each Riser, I can only see the modules that are in position 1 of each riser. Is this something expected in the new MacPros? Is there a disadvantage of keeping this configuration? I note that a memory installation video on line stated that the way memory is installed in the early 2008 Mac Pros has changed. Does this issue result from that change?
O.K. I have a Black MacBook (Early 2008). I think that I still have the factory standard RAM sticks (I bought the Mac used from a friend).
View 1 Replies View RelatedI am planning to upgrade the standard 4gb of on my April 2010 Macbook Pro (the basic 2.4ghz model) to 6gb.
Over on Crucial memory suppliers they advise using two identical modules, i.e. 2 4gb sticks rather than 1 2gb + 1 4gb.
Can anyone chip in on whether this is good advise or just them trying to make a few more bucks?
For my needs 6gb should be perfect, I have a desktop already with that amount, although to be fair the desktop is 3 * 2gb modules.
I get the message: the memory modules are installed in the recommended slots. Every time I restart my 2010 Mac Pro. I upgraded my memory with 3 x 2GB OWC memories. They are properly detected, and the system is working fine.
View 22 Replies View RelatedSo my last project - the first one on my new 3.2 octo with 20 GB RAM - and I'm getting out of memory errors in FCP. I thought at first it was a permissions or bad preferences problem, but it turns out that I actually pushed Final Cut too far and it exceeded it's 4GB RAM limit. does anyone have any info from Apple about when they might upgrade FCP to use more RAM?
View 2 Replies View RelatedJust a quick question. I know when upgrading the RAM on my macbook, even if I put in 4BG it would only use 3.6 or something like that. Is there anything like this when upgrading the hard drive? Can I put in as many GB of hard drive memory as I want or has apple put limitations on that as well?
View 11 Replies View Relatedi have a mac book pro ( 15 inch, 2.4ghz, late 08)
the memory limit is 4 GB. Is this an OS limit which will be blown away with snow leopard, or is it a hardware limit, which will remain regardless of 64bit OS?
other MBPs have 6 or 8GB limits, which makes me think they may be hardware related
I'm wondering if anyone else has this problem? Whenever I import a cd into iTunes, or convert a track to a different bit rate, it literally uses all my computer's memory/CPU. I cannot use the computer for anything else during this time as it's far far too slow, to the point where programs won't even open. This wasn't always the case, but it seems with each new version of iTunes it becomes worse and worse. I import at a pretty low bitrate 128 mp3. I am only trying to surf the net when I'm importing, I'm not doing anything else or using/running any other programs. If I do try to use another program (like my email program - outlook) it will barely open, takes forever to do anything, and wants to freeze. I can't use Microsoft Word because typing anything is impossible. Massive lag before the typed words show up.
View 6 Replies View RelatedI read in another post here that the new all-flash memory is only good for about 100,000 saves, or 5 years for the average computer user. Is this really true? It seems silly to promote using hardware that puts such a limit on the user..
Info:
MacBookPro
Is there any way that the default stack memory limit for a user in Mac OS X Lion? You can you ulimit in Terminal.app to display information, you cannot change any values.Â
This is what is returned from ulimit when you try to change the stack memory size.Â
user@MacbookPro:~$ ulimit -s 81920
-bash: ulimit: stack size: cannot modify limit: Operation not permittedÂ
Also, the default value is 8192KB which is approx. 8MB. That is weak, especially on my 2011 iMac with 16GB of RAM. I mainly do scientific programming on my Mac (Fortran). These programs usually require a larger stack size. One option is to allocate data to the heap but that is very slow.Â
I just bought 2 new 4GB DIMMs for my Mac pro to expand the memory from 8GB to 16GB.
Here is the new arrangement: Top Riser: 4X2GBBottom Riser: 2X4GB
(I wanted to keep at least 2 slots empty just in case)
The problem: Mac will not recognize them. Every time I boot the computer it only recognizes all the Top riser memory (all the 2GB DIMMs only).
The bottom riser with the 4GB DIMMs will be shown as "empty".But...If I remove all the 2GB, only then it will recognize the 4GB ones. They are not faulty or not compatible then.In any scenario I haven't been able to go over 8GB. I did my homework, and I know they should be equal amounts of memory on both risers and preferably from the same manufacturer (which they are).
Info:Mac Pro, Mac OS X (10.6.8), 8-core Xeon 3GHz - 8Gb RAM
An SD memory card 32GB that used work well, when inserted into the MacBook Pro reader slot is no longer being recognized by the computer at all:
it is not visible in Finder or Image Capture or iPhoto, now nothing/nada/zip…
I am away from home, travelling - not anywhere near an Apple store/Apple Genius or even my old external card reader or a camera wire - so can not try these either!
Have a MacBook Pro, 2 years old, running OS X 10.8.5...
Info:
MacBook Pro, OS X Mountain Lion (10.8.5)
I just bought 2 - 4 gb memory to ugrade my 2 - 2 gb memory on my macbook pro 13" early 2011. Installed them and rebooted. The About Mac still shows 4 mb memory and looking farther it shows it has 2 - 2 mb memory. Also, now when I close the lid on the computer and it shuts down completely and not just go to sleep. i do not know if the two are related.
Info:
MacBook Pro, Mac OS X (10.7.4)
I have a Powerbook G4 that I wanted to upgrade to 1.5G from 512MB. So I added Corsair 1GB DDR RAM to the notebook and it seems to have issues recognizing both at the the same time. When I put both of them in together, it never seems to recognize the bottom slot. Putting in the 512MB in the bottom w/o the 1GB the Powerbook boots up fine. Putting in the 1GB by itself and it gives beeping noises on bootup, but it'll boot up if I put it on the top slot.
View 4 Replies View RelatedI have a MBP and I want to upload pics onto it from my SDcard from my camera. I put it into the memory card slot and i dont think it is recognizing it? Im not really sure what to do
View 24 Replies View RelatedI am thinking about getting a 15 inch MBP and a Sony Bloggie Video Camera. I was wondering if the sony bloggie takes sd or if the MBP recognizes Memory Stick in the SD Card Slot?
View 9 Replies View RelatedI have installed 4GB of extra ram to my MBP 13" (late 2010) to increase the performance of virtual machines. Though the VirtualBox doesn't recognize the 8GB of ram when i try to create a new machine for Windows XP 32-bit or Windows 7 64-bit. I haven't tried it with other operating systems. I have also reinsalled the VirtualBox but it didn't work.Â
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MacBook Pro (13-inch Mid 2010), Mac OS X (10.6.8)
can I use 2-2GB RAM modules in 2 slots and 2-4GB modules in the other two slots, or do all 4 modules need to be the same size?
Info:
iMac, Mac OS X (10.6.8)
I want to know if the wool is being pulled over my eyes by OWC. The site says that their 4GB modules for a Mac Pro Intel Xeon Quad-Core 2.66MHz can only be put into the tower if the original Apple modules are first removed. Something makes me think that this is a salesman's bluff. Anyone know for sure? Sorry if an answer to this question has already been given elsewhere.
View 4 Replies View RelatedI know the newer Intel QPI processors have three main-memory channels, and I've seen much discussion and several complaints on these threads that Apple didn't expand their memory risers to squeeze in six DRAM sockets instead of four, so that the module count on each riser could be a multiple of 3. (And also that they should have done this for the 2009 Nehalems).
Here's my question: what kind of performance would I be losing and why if I got one of these new Westmere machines, discarded Apple's stock memory and replaced it with 4--rather than 3--OWC 4GB sticks? What I specifically don't understand is, can't the QPI fetch from any 3 of the 4 modules at once?
I've read many of the threads regarding RAM pricing and configurations for the 6-Core systems. I planned on ordering my Pro with 6Gb instead of the default 3GB, but my friend at Apple forgot when he placed the order. what I understand RAM module placement and type may significantly impact system performance for this platform. As I need to double the RAM, should I purchase 3x1GB modules to add or purchase 3x2GB models and sell the 3x1 that came with the system? Also, which is the best RAM retailer, OWC, Crucial, etc?
View 5 Replies View RelatedSo my early 2010 iMac has 8gb of memory (4 x 2GB modules).I happen to have 2 spare 4gb modules that are from a MacBook pro of the same era - i.e they are DD3 1066Mhz and they will fit.So question is - if I take out two of the 2gb modules and replace them with 2 of the 4gb machines - will the machine work and will it see the full 12gb ( 2 x 2gb plus 2 x 4 gb)?
View 12 Replies View RelatedI recently installed (4) - 4gb RAM modules and I'm worried that they may be running too hot. The image attached is from the machine just essentially sitting idle all day. Only 1gb of the 17gb are wired. When I do put the Mac to work, either through Handbrake or running Autocad through Fusion, the temp on module A1 reaches 173 degrees and the fan speed just about doubles.
View 10 Replies View RelatedI have an old PowerMac G4 (AGP Graphics), which has served me dutifully for a long time. However, I recently took all but 128mb of the ram out to temporarily use in other computers, and when I went to put the modules back in, basically none of them worked. Here's the deal: I have 2 256 modules, and when I put those in my computer, whether individually, together, or with other modules, I get this message on-screen and the computer does not boot: localhost:/ root# []. Similarly, I have 3 128mb sticks, but if I put more than one in the computer at a time, I get the same message. I'm thinking the computer may have some issue with more than 128mb of ram, but why all of a sudden? I don't really know anything about code or whatever the computer is trying to tell me.
View 1 Replies View RelatedI have a Macbook Pro 8.1 with 4GB of ram memory 1333Mhz, is there a problem if the change for a 8GB 1066MHz modules?
Info:
MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3)
