I'll be ordering RAM from OWC for hex core 3.33 mac pro in the next few days. I can't spend $1k at once on 24GB, so I'm thinking of getting just 2x8GB for now and get the extra stick in about 2 months or so.
I know theres about 25% or so theoretical bandwidth loss with just two sticks, but what's the real, noticeable performance hit vs 3...if there is any?
I've looked around but can only find 1GB chips for the original 20" Intel iMac. I'd like to upgrade to 4GB (2x2GB) if possible.
View 22 Replies View RelatedWell im buying a 13 mbp and im going to upgrade to 4gb of ram. what to get?
View 7 Replies View RelatedI tried to purchase a 8 gb upgrade kit from owc. The first set of 2x4 gb ram modules gave me kernal panics in every configuration. I sent them back and they sent me another one that was bad. I have a fourth coming in the morning tomorrow, and I am not confident that it will work either. The 4gb of stock apple ram function fine. I ran an extended apple hardware test and my systems supposedly functions normally.
I have a 17" unibody 2.93.
Is it OK to use two different size ram sticks if they are the same type/speed?
Say I wanted to fit a 1gb and a 2gb stick into my macbook, but both were 667MHz DDR2, would that cause harm to my system?
Last night Lloyd Chambers of [URL] tweaked his DigLloydTools app (DLT) that we use to test memory throughput. It's now more accurate. The bad news is that it showed that when we put 8 sticks of memory in the 8-core 2.26GHz Nehalem, our throughput for memory read/write (memmove) dropped by 1/3. It turns a triple channel memory bus into a dual channel memory bus.
Specifically, in our test, the combined read/write throughput dropped from 9261MB/s to 6195MB/s when we went from 6x2GB to 8x2GB configuration.
Now, don't panic. That doesn't necessarily affect real world app performance unless the particular app you are running is saturating the memory bus. Which apps saturate? I don't know yet. I'm running our complete real world test suite including Pro Apps and 3D Games in both the 12G and 16G config. If I find anything that's significantly slowed by the 8x2G config, I'll post it here as well as on Bare Feats.
We just got an extra gig of ram, I put it in the iMac, but it sticks out like 1-2 mm more than the stick already in there. Is that a problem? Or is it just different to the one already in there.
View 5 Replies View Relatedi deleted the music off of the usb using my mac, then ejected my usb. When I put it back into my windows pc it said the memory was full. I then put it back into my mac and the files appeared in the Trash so i deleted them.Now there was nothing im my trash, and as soon as i put my usb in there was an old cv which i had deleted of my usb a month ago I don't understand why the files are in the trash when only the usb is plugged in, does this mean that the deleted file is on my mac or usb? and also what is the relationship between mac and usb stick?
View 2 Replies View RelatedI am considering purchasing a Mac Pro, probably at the begining of next year when the newer models have (hopefully) been released.
My plan is to get the standard model with Dual 2.8GHz Quad-cores (though this could all change with the new systems) and the lowest memory option - 2GB DDR2.
I plan to upgrade the RAM myself using memory from another supplier such as crucial. I have done this in the past with my macbook (taking it from 1Gb to 2Gb). When I did this I found that apple had installed 2x512Mb sticks from the factory which meant I had to buy 2x1Gb sticks rather than just adding a single 1Gb stick.
My question is, is there any way of telling what I will recieve from apple if I order 2Gb or is it the luck of the draw? i.e. will I get 1x2Gb or 2x1Gb etc etc...
The reason I ask is that I would prefer to use the single 4Gb sticks when I come to upgrade maximise the amount of RAM I can install.
I found the "reture/enter" key on my MBA keyboard stands somehow higher than other keys, and not sure if the key would touch the screen when closing the lid. Is there any problem with it and is it the same on your MBA?
View 1 Replies View RelatedGuys Which one is best among the two ?
View 3 Replies View RelatedI wanted to bump up the ram but was wondering if I would have any problems by just adding 1 extra stick of 4 gb for a total of 8gb(qty.2 2gb+qty1. 4 gb)
my webpage often sticks around the end of the www's and does not open
Info:
MacBook Pro, Mac OS X (10.6.8)
How do I cancel a stuck pinwheel? I have cleaned everything out with MacKeeper, but it still sticks and I haave to cold-boot.
Info:
iMac, Mac OS X (10.4.9)
I just bought this macbook off a friend cause he said he couldn't get it to work so what happens is when i push the f key it types a "�" like if i push the option+f. when i bring up the keyboard viewer when i press the left option key it seems like it auto puts a "�" on the screen and looks like it presses like 4 other keys but if I press the right option key it does nothing if i press right option+f does nothing but works with everything else. just dont know if maybe someone waste some water in it or something cause the left tab key and capslock key sticks sometimes also.
View 5 Replies View RelatedOn my iMac g4 I've got 2 different ram ddr2 speed sticks in there. The standard 256mb apple shipping stick and a faster sodimm, (1.0ghz iMac). My question is will this work just fine, I mean it boots and runs fine or will I get compatibility issues later on?
Dimm0. 1gb. Pc2700u
Dimm1. 256mb pc2100u
i want cheap ddr pc3200 ram for my g5i mean cheap price not quality i want to know of more generic pc ram that wont give me issues with the g5 so i can do more shopping around and get the best price possiblehave people had any luck with crucial rendition or kingston valueram and other cheap types of ram if so
View 12 Replies View RelatedI am trying to upgrade the RAM in my white macbook from 2 GB to 4GB using the RAM from a Sony VAIO laptop. If I put both 2 GB sticks from the other laptop in, my computer turns on but does not boot. The screen never turns on. If i have one of the original sticks in, and one of the new sticks in, it boots up fine and the system profiler recognizes the new RAM and says it is in working order. Why can't I boot with both sticks in? They are both DDR2 667MHz sticks and are all working.
View 10 Replies View RelatedMy powerbook G4 recognizes my IPod cable and printer cable through the USB ports, but won't recognize any USB sticks or card readers.
Any idea what is wrong, and hints for how to fix it?
I have those sticks for my psp and the work great. PS3 sees them perfectly and the old pc I had, but for some reason my brand new imac doesn't see the memory stick I put in.
Am I putting it in the wrong way or do I need to buy something extra to get them to work on my mac?
I am going to buy an Imac soon. Most likely the with 4 gig ram. I was just wondering how many memory slots does an 24 inch Imac have. Because I have 2 one gig ram sticks that I wanted to add to it and didnt know how many free slots it would have.
View 6 Replies View RelatedI have three 16gb USB memory sticks that don't work correctly with Snow Leopard. Disk Utility is will only format them in FAT32 format and I'm unable to successfully copy files to and from the sticks.
They work perfectly fine under Windows in Boot Camp and also on my Windows based laptop. Sadly, I purchased them after I had installed Snow Leopard and I don't have access to another Mac with an earlier copy of Mac OS X to test them.
Is this most likely a Snow Leopard anomaly do you think or is it just that these sticks are not OS X compatible?
My Safari window on my iMac keeps opening but then the pages won't load fully - for eg, the start page comes up with the apple homepage which starts highlighting blue as if it were opening but then sticks halfway through this process.
View 7 Replies View RelatedCan I put 2gig ram sticks into 4-slot G5 for a total of 8gig RAM?
Information:
G5 dual 2, IPhone 4gig
Mac OS X (10.4.10)
After some difficulty upgrading my 4HD RAID0 2.66 MP to SL I've discovered my full screen Hulu and WB browser video is choppy if I use a full screen pop out window. If i go full screen it works fine. I've checked my Internet speed and it is as good as ever. I have not changed my config. of three LCD screens or any other hardware. This problem happens in both Safari and Firefox. I did have to reset the PRAM in order for the SL installer to see my RAID0 HD per Applecare. The bottom line is I used to be able to watch Hulu via a pop up expanded to the edges of my 24# LCD, and surf using one of my 22 inch screens. Now I can't unless I want the video and audio dialog to sych. I did confirm the the main Radeon 3870 card is still running at 16X. Could this be driver problems?
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View 13 Replies View RelatedSo I just installed the Apple ATI Radeon HD 4870 in my 2.66 quad Mac Pro1 1. Everything seems to be great but when I ran Cinebench I noticed that it is running OpenGL Engine, 2.0 ATI-1.5.48. In the results I see another 4870 with higher scores running OpenGL Engine, 2.1 ATI-1.6.6. My question is this. Is there something I should update for better performance? Is this a difference in cards, OS, drivers, firmware?
Well? Is there anyone using the 11.6" as the primary computer? If there is, post your thoughts here. Is the screen too small? How is the performance for your day to day tasks?
View 1 Replies View RelatedI currently own a Mac Pro 2,8GHz 8-core (2008, 3,1) with the following specs;
Octa-Core 2,8GHz
4GB RAM
Modded 4890 Graphics
Apple GT120 Graphics
X25-M G2 80GB SSD
How is the heat/fan performance on your new MBA?
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