Laptops :: Macbook Pro Ram Upgrade - Removed New Ram Modules And Refitted The Old Ones?
Jan 8, 2010
I have a macbook pro of 8months old.The machine is fitted with 4gb ram, 2 x 2, but is able to be fitted with 8 gb.I bought 2 x 4gb of the same type of ram: 1067 MHz DDR3When it was fitted, the computer performed great, Autocad was flying.
Alas, after a few hours the computer went berserk and started to behave odd, refused to open a prog, refused to stop and finally refused to re-start.
When I removed the new ram modules and re-fitted the old ones, I found out that my hdd was not mountable. I did resolve the issue but lost some data in the process.
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Aug 17, 2009
for all running out of space,I have replaced the Harddrive on my macbook air Prozessortyp:Intel Core 2 Du Prozessorgeschwindigkeit:1.8 GH Anzahl der Prozessoren:1Gesamtzahl der Kerne:2L2-Cache:4 MBSpeicher:2 GBBusgeschwindigkeit:800 MHzthe sparepart Hard Drive i used
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Sep 3, 2009
o I took the plunge and giddily purchased Mac OS 10.6 aka Snow Leopard the day it was made available. Usually, I have very little worries being an early adopter to new OS releases considering the successful upgrade experiences I've had through the years of being a Mac user.
After upgrading to Snow Leopard from 10.5.8, my MacBook Pro 17" (2.6 GHz, 4GB RAM, 200GB @7200 RPM HDD, non-unibody) would consistently drop it's internet connection whether it was via Ethernet (wired) or through AirPort (wired and wireless are using DHCP). I've applied several supposed fixes suggested everywhere on the Googled web with limited success:* Reset Network settings, deleted "Automatic" settings and created a new setting (called untitled)
* Zap the PRAM (hold Command+Option+P+R on restart)
* Flush the DNS cache(using: dscacheutil -flushcache on the Terminal)
These 'fixes' worked only for a few minutes, and the internet connection would eventually drop again. NOTE: Although other computers and drives were visible on my network, and Instant Messaging via Adium is still functional, which is weird, I could not connect to the internet through a browser, or connect Mail.app or even to the iTunes store.
Tired and frustrated at this point, I decided to finally call Apple Support (Case #134733179) and was suggested to try the following steps:* Shutdown the MacBook Pro, remove battery, disconnect the power, and then hold the Power Key for 15 seconds. After which I was told to replace the battery, reconnect power and zap PRAM and wait for 2 chimes before letting the keys go.
I was able to get connection for a while but lost it again after a few minutes of usability.And so I called again and was told this time to try:* Trash the SystemConfiguration folder (~/Library/Preferences/SystemConfiguration) and all of it's contents... then reboot.
The above suggestion seemed logical as it would obliterate any existing preferences that may be corrupted and affecting the connection setup. The system would then recreate a fresh preference file free of any lingering old settings. This again worked for a while, but sadly, my wired and wireless connection both drops within a few minutes of usage. It is also worth noting that simply restarting the MacBook Pro regains connectivity as well but drops after a few minutes on both Ethernet and Airport settings.
So today has been an unproductive day considering I spent all my efforts troubleshooting Snow Leopard (10.6) on the MacBook Pro, and couple that with the inability to use several key functionality such as SynergyKM to sync all three machines I have with one keyboard/mouse (not to mention the unpredictable behavior Adobe CS3 has been displaying (especially InDesign losing menus and drawing blank palettes!) and the loss of Letterbox's (plugin) features on Mail.app) and I am now forced to downgrade back to 10.5.8 via Time Machine Restore until Apple resolves or acknowledges this problem (or some knowledgable individual throws this dog a bone and help me out of this misery).In the meantime, I need to get work done and something as fundamental as a stable internet connection should have been high on Apple's "must work" priority list.
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Apr 20, 2010
I'm going to be upgrading my powerbook G4. I have an external 750 hard drive that is up to date with my system. What I would like to know is, should I do a clean install to Leopard(can't go snow leopard.no intel. right?)and later add my pictures & music back from backup? And what is the best way to do that. I also am adding 1 g to the 512. I'm thinking I'm not going full memory for now. I'm just trying to make this wonderful laptop a few more yrs. Please can anybody tell me how you upgraded and why.
:unsure:
Machine Name: PowerBook G4 17"
Machine Model: PowerBook5,5
CPU Type: PowerPC G4 (1.1)
Number Of CPUs: 1
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Feb 7, 2010
I would like to know if there is a CPU / Processor upgrade option for my laptop. I am max'd out 640 MB of RAM and the processor is heating up often. I am running Leopard 10.5.8
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Apr 25, 2012
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)
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Sep 1, 2010
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?
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Apr 2, 2010
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).
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Feb 24, 2012
I 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)
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Jul 30, 2010
I 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.
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Jan 16, 2010
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.
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Jul 30, 2010
I 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?
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Nov 18, 2009
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?
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Oct 10, 2010
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?
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Nov 19, 2010
So 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)?
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Mar 29, 2008
I 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.
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Jul 25, 2008
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?
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May 4, 2009
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.
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Aug 18, 2008
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.
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Dec 27, 2008
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?
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May 6, 2010
I 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?
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Dec 7, 2010
I keep having to rejoin my home wireless connection. It drops at least once a day.
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Jan 14, 2011
Are there any cases for 13" MBA that stays on the MBA while using the notebook with screen opened so you do not have to remove the MBA out of the sleeve each time you use it?
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Feb 10, 2012
So I was attracted and and etertained with the ad of the MacKeeper program because I saw comments that it removed a lot for their macbooks, so i downloaded it and used it. Unfortunately, it removed the Windows partition (not really the partition), which I really need now. It didn't remove the partition but it cleared the system cache. I discovered it when i downloaded a hybrid for my BlackBerry (sorry Apple,. I'm going to switch to an iPhone soon. ) and the file I downloaded can only be used on Windows. So i turned the mac off, (to switch to windows via holding the "alt/option", and to my surprise, it didn't show the Windows partition! So i was wondering, how can I get the Windows partition b ack without reformatting and installing again since i have all the important files there?
Info:
MacBook (13-inch Late 2009), Mac OS X (10.7.3)
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Apr 15, 2012
When my G4 Powerbook finally died I removed (carefully) the hard drive and fitted it into a caddy. Plugging the caddy's USB lead into my new MBA however does not produce any result. how I retrieve the files from the old hard drive?
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May 8, 2012
I installed window 7 in wrong way. what's more, my Mac OS X was removed. Can I restore it back? How can I restore the mac os x back?
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May 23, 2012
I accidentally removed air drop from my side bar. How do I get it back?
Info:MacBookPro
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Oct 16, 2009
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). I noticed today that I am running on only one gig of RAM even though I have two gigs of memory.
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Jun 2, 2010
I have set our new XServe and have PHP running fine. However, I want to use the PHP calendar module/extension. This is a standard PHP module and can be found in the standard downloads from PHP.net. I tried to take the Linux approach of recompliling PHP with --enable-calendar however, this doesn't work as there is no compiler on the system.
Any ideas on how i can get the calander module to work? The only compiled versions of PHP I can find for the Mac don't include calendar.I'm Running OS X 10.4.7, PHP 4.4.1, Apache 1.3.33
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Apr 16, 2009
I've got a refurb 21.5" iMac 3.06GHz/4GB RAM/500GB HDD arriving soon.I believe it has two 2GB modules installed in two of the four memory slots, with two other slots unused. I have a few questions before I order more RAM for my machine.
Is it advisable to have ALL the RAM modules be of identical brand and size?Can other brands of RAM be added to the two empty slots as long as they are of the same specifications? Do RAM modules need to be added in pairs or is single ok?Can the added RAM modules be of any size (1GB, 2GB, or 4GB) and still work fine with the factory installed 2GB modules?
For example, would there be any performance problem by adding a single 4GB module to the existing two 2GB modules? Or would it be better to add two 2GB modules rather than a single 4GB module?
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