Upgrading from 512 to 1.5 GB RAM?

Currently I have a Macbook Pro with just 512 MB of RAM. I was planning on buying this RAM from newegg:
http://www.newegg.com/Product/CustratingReview.asp?Item=N82E16820231066
Is it ok to have both a 1 GB and a 512 MB RAM stick in the computer at once, or should I have two of the same size RAM?

For best RAM performance (Dual channel mode) it's ideal to have two sticks of the same size; 2x512MB or 2x1GB and then you get about 6% benefit.
However, the performance gain is small compared to having more RAM available so, 1.5GB is better than 1GB for things like Aperture or if using Rosetta.

Similar Messages

  • Using IMovie, will it matter if I upgrade from 512 megs of Ram to 1 gig?

    I've upgraded one G3, and am thinking of increasing the Ram on this second computer. Will that significantly increase performance? It'd cost about $60 for the upgrade from 512 to 1 gig of RAM. Thanks. David

    David,
    Generally speaking, more memory is helpful with OSX, especially if using heavy duty apps. If you would like to check how your 512MB is doing, restart your Pismo to clear out the swap files and memory. Now open Activity Monitor in Utilities, select System Memory at the bottom, then start using your 'book. If free memory is used up pretty quickly plus you start seeing 'Page outs' (hits to virtual memory) start climbing into the thousands, more memory is warranted.
    I have 2GB in my MBP and just using Safari, Mail, and a few games, I can watch my free memory slowly decline over several days, mostly due to Safari I believe. At the moment, I have 500MB free using just the aforementioned apps.

  • Can I upgrade from 1 gb to 2 gb RAM ?

    Hi All:
    I have a client with 2 17in PBs, one 1ghz and the other 1.33ghz, and both have 1 GB RAM installed, Can she upgrade from 1 gb to 2 gb RAM ? ( via 2 X 1GB modules ). Even though the manual says the maximum RAM is 1 GB. Also what type of memory is it and what is a ballpark cost?
    Thanks
    PS if possible i would like to hear from people that have done this.

    I upgraded my 1.67 PB when I bought in January from 512MB to 2 GB. I purchased Mac RAM at DMS (http://www.datamem.com/AMM12.asp). I bought 2 1GB modules for 100.00 each which was less than half of what Apple wants for memory.
    Haven't had any issues whatsoever and I run some fairly intensive apps (Apeture, FC Studio). The only app that has been a bit flaky is Lotus Notes (6.5.4) which seems to fail on startup every once and a while...
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  • Upgraded from 512 MB (unified) RAM to 2 1GB sticks... numerous issues.

    Hello - I've had my Macbook Pro for about a year and I finally decided to upgrade my RAM. I bought 2 1GB sticks of this RAM: http://www.newegg.com/Product/Product.aspx?Item=N82E16820146126
    and since installation I have had numerous problems with several applications, from World of Warcraft to Camino.
    Applications have quit unexpectedly, and several times I have received a message that "you need to restart your computer," which is only removable with a hard reset.
    I believe my computer's issues may have something to do with the fact that one of my memory bays has been vacant for quite a while, because I tried installing only 1 1GB stick in the bottom bay, and have had no serious issues since.
    Any help? I would like to be able to fully utilize both memory slots.
    Thanks.
    -Andrew

    Hi Unifin,
    Welcome to macbook forum.
    try to repair permission
    open application folder > utilities folder > disk utility > repair permission.
    Try to reset PRAM
    http://docs.info.apple.com/article.html?artnum=2238
    Try to reset PMU.
    http://docs.info.apple.com/article.html?artnum=303319
    Also try to put one memory at a time on each bay and make sure it properly seated, from there you might find out which module that "defect" and you can ask for replacement.
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  • Is it worth the $ to upgrade from 1.5Gb to 2Gb of RAM?

    I have a G4 Dual 450 AGP with 1.5Gb of RAM. I am working on a large catalog. I use InDesign and Photshop a lot. Will I even notice the extra 512 Mb enough to justify the purchase? Thanks.

    Hi
    You could try using the Activity Monitor application located in the Applications\Utilities folder to monitor your existing memory usage whilst you perform your work. The following article explains how to interpret the information shown:
    http://docs.info.apple.com/article.html?artnum=107918
    As already mentioned a processor upgrade may be more beneficial. IMHO you get the most bang for the buck with a mid range processor upgrade, perhaps a single 1.4 - 1.5GHz 7455 based one, e.g.
    http://www.sonnettech.com/product/encore_stg4.html
    http://eshop.macsales.com/shop/accelerators/OWC-Mercury-Extreme/

  • Upgrade from 4x2 GB to 2x8 GB Ram results in strange Windows 7 64bit behavior

    I wanted to upgrade my System, swapped the 4x2 GB (Adata 1600G) to 2x8 GB (G.Skill F3-2133C9D 16GXH) Ram to the Dual Channel Slots (2 x Blue)
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    I have OC Genie active and tried it later without.
    When I boot to Windows with the new RAM my NVIDIA Card has a yellow exclamation mark in my device list. Also NVIDIA Software can`t access the card telling me I would have not such an device active. I tried to reinstall the drivers without success.
    I tried a couple of changes in bios and rebootet, but gave up after 40 Minutes of experimenting.
    After I went back to my old RAM the system runs smooth like always.
    Now I hope someone here can give me the right advice what to do, or ì`ll sent them back to the shop.
    System:
    MSI Z68A-GD80 (B3) (MS-7672) (Bios V20.1 01/09/2013)
    Intel Core I5-2500k @ 4200
    NVIDIA N560GTX-Ti
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    Old Ram: A-data 1600G @ 667 MHZ
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    changed the other one G.Skill module workd ok (to be sure both are ok)
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    I choosed DIMM1 + 3 (Blue) or DIMM2 +4 and all other positions with no good result.
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     i get the following error on my nvidia card in the device manager
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    Thank you

    Quote from: cekay on 29-March-13, 00:58:11
    thank you. that`s what I had in my back mind
    I didn`t thought that the performance increase is that less. any reviews you can recommend ?
    Here is the memory scaling on a Core i7 2600K:
    As you can see, in both cases (non-3D and 3D apps) the performances boost is close to zero.
    So again: for all the current Core i5 / Core i7 processors, DDR3-1600 is the best match.
    Above that, nothing but troubles.

  • Will Upgrading from 4 GB to 8 GB RAM Improve Performance

    I have a 2009 2.0GHz Mac Mini with 4GB RAM. I use Photoshop CS4 and Lightroom 3 to process digital images. Lately, I'm processing higher megapixel files. I've gone from 10MP to 15MP and 18MP and would like processes to go faster.
    Do you think that I'll see a significant gain in performance going from 4 to 8 GB RAM?

    You may see some performance increase, but Photoshop CS4 can't address more than 4GB of RAM (it actually won't use that much, but I don't remember the exact figure), so expanding to 8GB won't be of as much benefit as it would if you upgraded to CS5 which is a 64-bit application and so is capable of addressing more RAM.
    Regards.

  • MOVED: Upgrade from 4x2 GB to 2x8 GB Ram results in strange Windows 7 64bit behavior

    This topic has been moved to Intel Core-iX boards.
    https://forum-en.msi.com/index.php?topic=167714.0

    Quote from: cekay on 29-March-13, 00:58:11
    thank you. that`s what I had in my back mind
    I didn`t thought that the performance increase is that less. any reviews you can recommend ?
    Here is the memory scaling on a Core i7 2600K:
    As you can see, in both cases (non-3D and 3D apps) the performances boost is close to zero.
    So again: for all the current Core i5 / Core i7 processors, DDR3-1600 is the best match.
    Above that, nothing but troubles.

  • Upgraded to 1.25 Gigs RAM from 512 MB-- notice some HEAT

    Hi folks. I just upgraded my 12" G4 PowerBook (1.33 GHz) from 512 MB to 1.25 GB of RAM by adding a 1 Gig card. The first card I bought was a 3rd party brand and it was faulty, but the company was good and sent out a replacement.. the Samsung (same as used by Apple) arrived quickly.
    My question is this: Does it make any sense that I would notice a bit more heat production with the 1 Gig card in there? It's possible that it's only happening because I'm using Lightroom, more of a memory hog than other programs I've used previously. Or maybe it always gets warm like this but I don't always notice it as much when I haven't changed anything.
    Wanting to run Lightroom was initially the main reason I wanted more RAM, BTW.
    Thanks for your input.
    PowerBook G4   Mac OS X (10.3.6)   1.33 GHz, 1.25 GB RAM

    Welcome to Apple Discussions!
    Some heat may be possible just because the components are more dense. I would note the following:
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    http://docs.info.apple.com/article.html?artnum=30612
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    3. I've seen Blue and White G3 RAM go bad, and overheat so that it is too hot to touch. So any RAM can go bad at anytime, and even high quality RAM can too. Try replacing the RAM if you are seeing behavior with the machine that would not be considered normal under an erase and install (backup your data first), and it seems to happen when the heat gets more. Make sure when you get RAM, it is too spec:
    http://www.info.apple.com/support/applespec.html
    And lifetime warranty RAM at that straight from the manufacturer.
    4. The 15" Powerbooks of the 1.25 Ghz generation have been known to have issues with one RAM slot. I know Apple started servicing newer 15" models due to RAM issues:
    http://www.info.apple.com/kbnum/n303173
    Not sure if the same issue has been seen on the 1.33 Ghz 12".
    Good luck!

  • After upgrading from Win 8 to 8.1 my DVD RAM GT80N SATA Drive is no longer working

    After upgrading from Win 8 to 8.1 my  DVD RAM GT80N SATA Drive is no longer recognizing discs. When I first put a disc in the drive runs for a bit and then stops. I've tried updating the driver but it says it has the most current driver. Under manage, it does not show any error codes and it says it is working correctly. I've looked at the regedit and it does not have any of upper and lower filters. I've tried disabling, rebooting, and reenabling. What am I missing? Another issue I've had since upgrading is that my network adapter needs reset several times a day in order to remain connected to wifi.

    Hey hvbnfrgvn,
    Thank you for the information on your HP Pavilion g7-2270us Notebook PC.
    I suggest following the steps in this document for Drive Cannot Read Discs (Windows 8).
    If your CD/DVD Drive Is Not Detected (Windows 8), follow the steps in this document.
    I hope this information helps, please keep me posted on how it goes.
    Best of luck and have a great day!
    I worked on behalf of HP.

  • I want to upgrade to Lightroom 5, but I'm concerned about compatibility with my 2008 intel Core 2 Duo iMac with only 4G of Ram.  Will I be able to run Lighroom 5 if I upgrade from Snow Leopard to Lion?

    I want to upgrade to Lightroom 5, but I'm concerned about compatibility with my 2008 intel Core 2 Duo iMac with only 4G of Ram.  Will I be able to run Lightroom 5 okay if I upgrade from Snow Leopard to Lion?  What will happen to the applications that aren't 64-bit compatible?  Also the Eye-one Display 2 colorimeter to calibrate the monitor will not run on Lion, so that will be an expensive upgrade to an i1DisplayPro. Is the upgrade important enough to offset the expense?  I have an Epson R2000 printer.  Will there be problems with the drivers if I upgrade to Lion?  It would be great to hear from other mac users who are also photographers and who print their own photos.    

    Before upgrading to Lion be sure to read this link:
    https://discussions.apple.com/docs/DOC-6271
    Adobe lists these requirements:
    http://www.adobe.com/products/photoshop-lightroom/tech-specs.html
    Looking at http://www.everymac.com/ even the earliest 2008 iMac was fully 64 bit, even though Boot Camp doesn't support 64 bit Windows on that machine.

  • I am upgrading from Tiger to SL in a MCBPro with 2 gb ram and an intel chip and I get the following notice:  Installation failed.... THE INSTALLER COULD NOT COPY THE NCESSARY SUPPORT FILES. Any help is apprciated

    I am upgrading from Tiger to SL in a MCBPro with 2 gb ram and an intel chip and I get the following notice:  Installation failed.... THE INSTALLER COULD NOT COPY THE NCESSARY SUPPORT FILES. Any help is appreciated...

    Yes.   I've found that works best.  Especially if the drive is external, since external connections are typically slower, and Spotlight loves to eat up space going back and forth.   Time Machine will eat up as much space as it can, and typically needs drives at least twice the size of the original hard drive that is being backed up, if being backed up in full.   So unfortunately there is a lot of empty space that is needed for smooth operation.

  • HT1342 so how do i know if i need more ram? (upgrade from snow- mt. lion)

    Here is the mac that i have. I want to upgrade from snow l. to mt, lion when it comes out. articles are saying that i will need 4gb even though the updae page says 2gb. how do i read the activity monitor to see if i need more ram for the update? or do i just need to wait, install teh update, and then check? I want to get this all done in the next month so help would be great!

    2 GBs is the minimum required. 4 GBs or more would be better. Your model supports up to 8 GBs.
    About OS X Memory Management and Usage
    Reading system memory usage in Activity Monitor
    Memory Management in Mac OS X
    Performance Guidelines- Memory Management in Mac OS X
    A detailed look at memory usage in OS X
    Understanding top output in the Terminal
    The amount of available RAM for applications is the sum of Free RAM and Inactive RAM. This will change as applications are opened and closed or change from active to inactive status. The Swap figure represents an estimate of the total amount of swap space required for VM if used, but does not necessarily indicate the actual size of the existing swap file. If you are really in need of more RAM that would be indicated by how frequently the system uses VM. If you open the Terminal and run the top command at the prompt you will find information reported on Pageins () and Pageouts (). Pageouts () is the important figure. If the value in the parentheses is 0 (zero) then OS X is not making instantaneous use of VM which means you have adequate physical RAM for the system with the applications you have loaded. If the figure in parentheses is running positive and your hard drive is constantly being used (thrashing) then you need more physical RAM.
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  • RAM expansion from 512 to 1024 MB. Much better ?

    hi,
    I want to enhancen the standard memory of this tecra M2 from 512 to 1024 : does that give such a faster computer or is the gain not that worth ?
    Thanks in advance

    Hi
    RAM expansion is always good and thereby the notebook efficiency goes up. I do not know for which kind of work you need your unit but if you make some complex diagrams or design work I believe that you will be able to remark that the notebook can much better and faster finish all given processes.

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    I have a 2009 model Imac and I upgraded from 2gb to 4gb but now after about 20 minutes of the computer being on it will freeze up randomly. It could be 20 mins - 3 hours of use before it freezes up. I did my research and I'm didn't get any RAM my Imac couldn't handle...so I have NO idea what's wrong. Any help would be greatly appreciated!

    As old as it is have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosend. Reinstall the RAM grille. Plug in the keyboard and mouse if not blue tooth. Insert power cord...
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    http://support.apple.com/kb/HT3964
    Shut down the computer.
    Unplug the computer's power cord and ALL peripherals.
    Wait 15 seconds.
    Attach the computers power cable.
    Wait another 5 seconds and press the power button to turn on the computer.
    Here is a Widget to monitor your temps and other operations:
    http://islayer.com/apps/istatpro/

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