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 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 RelatedAll of my used ID and password slots have turned black. I can't see what I am writing and evidently I am making mistakes because they are being rejected. How can I return these fill-in-the-blanks to white backround?
Info:
iMac (24-inch Early 2008), Mac OS X (10.6.8)
How many memory slots does the iMac 21.5-inch:2.5 GHZ base model have 2 or 4?
View 4 Replies View RelatedI 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?
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?
simple Q: I know these slots can be used for GPUs and sound cards, but what other uses are there?
View 16 Replies View RelatedI have just bought this RAID controller:
[URL]
When trying to install it I found my Quad core mac pro only has PCIe slots, of which I can see anyway.
Is there any way at all to connect this to my mac?
I 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'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 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?
I 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 RelatedO.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 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)
I have the Power Mac G5 Dual Processor 2.0 GHZ, with 3 GB of RAM, but I would like to upgrade but this model only has four slot, not 8. On the logic board, I can see little holes where the other 4 slots are meant to be, but obviously they aren't there. Is there any way to upgrade this G5 so it has 8 slots, rather than 4? I haven't found anything about this on the Apple Discussions, or MacRumors.
View 7 Replies View Relatedi'm looking to upgrade my ram with some memory from crucial and was just wondering if both slots are used for the standard 2 gb my uMBP came with?
also, is it worth going to 4 gb?
I have this 1.42GHz G4 Mac Mini that my mother uses for very basic stuff but still gets bogged down by skype videoconferencing or by having more than a couple of tabs open on the browser. I was thinking of adding some RAM to its original 512MB (DDR 3200 on 1 module).
I checked prices on Ebuyer and 1GB of DDR3200 SODIMM will set me back �26 while a DDR4200 module of the same capacity will cost �13. I was wondering if it would be OK to mix the 2 memory types and get 1.5GB, or if I should replace the original RAM completely.
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 Replies View RelatedI just received the 2GB ram upgrade I ordered for my home iMac. I already have the factory 2GB. I thought it would have 1 2GB stick alredy, and that I could add another 2GB stick, but a friend just told me it probably has 2 1GB sticks in it...anyone know?
View 2 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.
Someone else pointed out in another thread that on the 11" MBA with 4 GB, if you look in System Profiler under memory, the software says that there are two RAM slots. I can confirm that on my MBA. So:
1) Is the same true on the 13" with 4 GB RAM?
2) Has anyone published a tear down of a 4 GB model just to be absolutely sure that there is only one soldered RAM slot? (I know it's unlikely that a second one got crammed in there, but I'd just like to see the tear down picture)...
I noticed on the Apple refurb site that Mac Pros from 2010 have either 4 or 8 memory slots. Is there an easy way to tell how many memory slots a computer will have? From what I have seen it looks like the quad core machines will have 4 slots while the eight core machines have eight slots. How many memory slots are in the hex core machines?
View 4 Replies View RelatedI'm transferring my OX onto a new hard drive so am going to move the slots so the new main HD is in Bay 1.
Do I physically move them all first, then restore using the disk utility or do I physically move them after restoring?
In physically moving a hard drive are there any settings that need changing?
Ok, my problem is as the title states. Why is this happening? My motherboard had 8gb slots and is compatable with 8gb ram. I installed 8 dimms of this ram I bought from newegg: [URL]
Currently I have a GTX 285 in Slot 1, and a GT 120 in Slot 3. Slot 2 is the faster slot, which I would think would benefit the GT 120, but then it's closer to the GTX 285 that leads to overheating concerns. I'm going to run anything graphics intensive on the GTX 285-connected monitor, so any real drawback then to having the GT 120 in Slot 3?
View 4 Replies View RelatedHow many memory slots are in the 3.06 27 incher, and how many slots are taking up on the basic setup? If there are four slots, are all four slots filled with 1gb cards? Im curious because I ordered my iMac from my job here, and I also ordered 2gb of memory, thinking I can go from 4gb to 6gb of ram. I was going to order a 4gb card, but it was 200 euros at my job. If anything, I will order a couple of more 2gb cards, but that all depends on the number of slots available/open.
View 7 Replies View RelatedI have a 27" iMac and recently picked up the latest model MacBook. I also picked up a 4Gb (2x2) RAM. I placed the 4Gb in the MacBook and decided to place that 2GB from the MB in my iMac to boost it to 6GB.
Here is my question, did I place the RAM in the best slots, assuming there is such a thing as best slots. I remember from the old day of PC that there was a strict order for placement else I may not get the most out of the additional RAM. It does register as 6GB when I click on 'About This Mac'. Below is a diagram and screen shot to show exactly what I did.
