RAM differences and compatibility?

I have a G5 2.5 gig that takes DDR PC3200 kind of memory. Will a slower DDR PC2700 memory work in it? Is memory backwards compatible? thanks!!
G5 2.5   Mac OS X (10.4.7)  

when in doubt, check the specs from Apple or head over and see what Crucial recommends for your system.
http://www.crucial.com/mac/
Easy to use their memory selector and they put all the specs up front.

Similar Messages

  • Early 2013 13" MacBook Pro runs slow and uses a lot of RAM, why and what can be done?

    Problem description:
    My computer is using a lot of RAM. Wondering if there’s a hardware issue, or a software issue, or something else. I currently have no programs open in the Doc, besides EntreCheck. and the RAM is showing about 75% used. I’m looking for suggestions on what I can do to speed it up and make it more functional, and efficient for doing design work. I recently upgraded from the original 4GB RAM (2x2GB), and from the original HD to a 512 GB SSD drive, and upgraded to Yosemite. Perhaps that was too much for this machine? Please help with anything that I can do to make it better! Thanks in advance!
    I have a recent back-up, I'm open to saving user files and starting from scratch with the current hardware, etc... but would need some direction on how to do this. I did upgrade myself using Apple provided instructions.
    Here are the EntreCheck results:
    EtreCheck version: 2.0.11 (98)
    Report generated December 2, 2014 at 12:45:57 PM EST
    Hardware Information: ℹ️
        MacBook Pro (13-inch, Early 2011) (Verified)
        MacBook Pro - model: MacBookPro8,1
        1 2.3 GHz Intel Core i5 CPU: 2-core
        8 GB RAM Upgradeable
            BANK 0/DIMM0
                4 GB DDR3 1333 MHz ok
            BANK 1/DIMM0
                4 GB DDR3 1333 MHz ok
        Bluetooth: Old - Handoff/Airdrop2 not supported
        Wireless:  en1: 802.11 a/b/g/n
    Video Information: ℹ️
        Intel HD Graphics 3000 - VRAM: 512 MB
            Color LCD 1280 x 800
    System Software: ℹ️
        OS X 10.10.1 (14B25) - Uptime: 2 days 0:17:23
    Disk Information: ℹ️
        Crucial_CT512MX100SSD1 disk0 : (512.11 GB)
        S.M.A.R.T. Status: Verified
            EFI (disk0s1) <not mounted> : 210 MB
            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
            SuperCool (disk1) /  [Startup]: 510.88 GB (320.22 GB free)
                Core Storage: disk0s2 511.25 GB Online
        MATSHITADVD-R   UJ-898 
    USB Information: ℹ️
        Microsoft Microsoft® Nano Transceiver v2.0
        Apple Inc. Apple Internal Keyboard / Trackpad
        Apple Inc. BRCM2070 Hub
            Apple Inc. Bluetooth USB Host Controller
        Apple Inc. FaceTime HD Camera (Built-in)
        Western Digital My Passport 070B 319.37 GB
            S.M.A.R.T. Status: Verified
            EFI (disk2s1) <not mounted> : 210 MB
            NATURE2020 (disk2s2) /Volumes/NATURE2020 : 319.03 GB (169.27 GB free)
        Apple Computer, Inc. IR Receiver
    Thunderbolt Information: ℹ️
        Apple Inc. thunderbolt_bus
    Gatekeeper: ℹ️
        Mac App Store and identified developers
    Problem System Launch Agents: ℹ️
        [failed]    com.apple.security.cloudkeychainproxy.plist
    Problem System Launch Daemons: ℹ️
        [failed]    com.apple.ctkd.plist
        [failed]    com.apple.icloud.findmydeviced.plist
        [failed]    com.apple.nehelper.plist
        [failed]    com.apple.nsurlsessiond.plist
        [failed]    com.apple.wdhelper.plist
    Launch Agents: ℹ️
        [not loaded]    com.adobe.AAM.Updater-1.0.plist Support
        [running]    com.adobe.AdobeCreativeCloud.plist Support
        [loaded]    com.adobe.CS5ServiceManager.plist Support
        [running]    com.hp.productresearch.plist Support
    Launch Daemons: ℹ️
        [loaded]    com.adobe.fpsaud.plist Support
        [invalid?]    com.adobe.SwitchBoard.plist Support
        [loaded]    com.microsoft.office.licensing.helper.plist Support
        [running]    com.surteesstudios.hddfancontroldaemon.plist Support
    User Launch Agents: ℹ️
        [loaded]    com.adobe.AAM.Updater-1.0.plist Support
        [loaded]    com.adobe.ARM.[...].plist Support
        [loaded]    com.adobe.ARM.[...].plist Support
        [invalid?]    com.citrixonline.GoToMeeting.G2MUpdate.plist Support
        [loaded]    com.google.keystone.agent.plist Support
    User Login Items: ℹ️
        GrowlHelperApp    Application (/Library/PreferencePanes/Growl.prefPane/Contents/Resources/GrowlHelperApp.app)
        iTunesHelper    UNKNOWN (missing value)
        EvernoteHelper    Application (/Applications/Evernote.app/Contents/Library/LoginItems/EvernoteHelper.app)
        Google Drive    ApplicationHidden (/Applications/Google Drive.app)
        Dropbox    ApplicationHidden (/Applications/Dropbox.app)
    Internet Plug-ins: ℹ️
        Default Browser: Version: 600 - SDK 10.10
        AdobeAAMDetect: Version: AdobeAAMDetect 2.0.0.0 - SDK 10.7 Support
        FlashPlayer-10.6: Version: 15.0.0.239 - SDK 10.6 Support
        AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 Support
        Silverlight: Version: 5.1.10411.0 - SDK 10.6 Support
        Flash Player: Version: 15.0.0.239 - SDK 10.6 Support
        QuickTime Plugin: Version: 7.7.3
        iPhotoPhotocast: Version: 7.0 - SDK 10.8
        SharePointBrowserPlugin: Version: 14.4.6 - SDK 10.6 Support
        AdobePDFViewer: Version: 11.0.09 - SDK 10.6 Support
        CouponPrinter-FireFox_v2: Version: Version 1.1.6
        JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
    User Internet Plug-ins: ℹ️
        CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 Support
    Safari Extensions: ℹ️
        AllMyTube
    3rd Party Preference Panes: ℹ️
        Flash Player  Support
        Growl  Support
        HDD Fan Control  Support
    Time Machine: ℹ️
        Skip System Files: NO
        Auto backup: YES
        Volumes being backed up:
            SuperCool: Disk size: 510.88 GB Disk used: 190.66 GB
        Destinations:
            NATURE2020 [Local]
            Total size: 319.03 GB
            Total number of backups: 4
            Oldest backup: 2014-09-10 17:52:44 +0000
            Last backup: 2014-11-19 21:23:34 +0000
            Size of backup disk: Too small
                Backup size 319.03 GB < (Disk used 190.66 GB X 3)
    Top Processes by CPU: ℹ️
            22%    mds
             6%    WindowServer
             4%    Creative Cloud
             3%    Dropbox
             0%    Google Drive
    Top Processes by Memory: ℹ️
        223 MB    Finder
        137 MB    mds_stores
        120 MB    Dropbox
        86 MB    Creative Cloud
        86 MB    WindowServer
    Virtual Memory Information: ℹ️
        2.08 GB    Free RAM
        2.82 GB    Active RAM
        1.64 GB    Inactive RAM
        1.59 GB    Wired RAM
        14.83 GB    Page-ins
        2.06 GB    Page-outs

    Lex...
    Here's the new EtreCheck that I just ran. At a glance, it seems I may have missed deleting some things or they are stored in an additional location? I haven't jumped into anything yet to really test if there's a difference in performance for me. Once I do I will post that information.
    EtreCheck version: 2.0.11 (98)
    Report generated December 3, 2014 at 8:46:56 AM EST
    Hardware Information: ℹ️
        MacBook Pro (13-inch, Early 2011) (Verified)
        MacBook Pro - model: MacBookPro8,1
        1 2.3 GHz Intel Core i5 CPU: 2-core
        8 GB RAM Upgradeable
            BANK 0/DIMM0
                4 GB DDR3 1333 MHz ok
            BANK 1/DIMM0
                4 GB DDR3 1333 MHz ok
        Bluetooth: Old - Handoff/Airdrop2 not supported
        Wireless:  en1: 802.11 a/b/g/n
    Video Information: ℹ️
        Intel HD Graphics 3000 - VRAM: 512 MB
            Color LCD 1280 x 800
    System Software: ℹ️
        OS X 10.10.1 (14B25) - Uptime: 12:43:15
    Disk Information: ℹ️
        Crucial_CT512MX100SSD1 disk0 : (512.11 GB)
        S.M.A.R.T. Status: Verified
            EFI (disk0s1) <not mounted> : 210 MB
            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
            SuperCool (disk1) /  [Startup]: 510.88 GB (322.45 GB free)
                Core Storage: disk0s2 511.25 GB Online
        MATSHITADVD-R   UJ-898 
    USB Information: ℹ️
        Apple Inc. FaceTime HD Camera (Built-in)
        Microsoft Microsoft® Nano Transceiver v2.0
        Apple Inc. BRCM2070 Hub
            Apple Inc. Bluetooth USB Host Controller
        Apple Inc. Apple Internal Keyboard / Trackpad
        Apple Computer, Inc. IR Receiver
    Thunderbolt Information: ℹ️
        Apple Inc. thunderbolt_bus
    Gatekeeper: ℹ️
        Mac App Store and identified developers
    Launch Agents: ℹ️
        [running]    com.adobe.AdobeCreativeCloud.plist Support
    Launch Daemons: ℹ️
        [loaded]    com.adobe.fpsaud.plist Support
        [loaded]    com.microsoft.office.licensing.helper.plist Support
    User Launch Agents: ℹ️
        [loaded]    com.adobe.ARM.[...].plist Support
        [loaded]    com.google.keystone.agent.plist Support
    User Login Items: ℹ️
        None
    Internet Plug-ins: ℹ️
        FlashPlayer-10.6: Version: 15.0.0.239 - SDK 10.6 Support
        QuickTime Plugin: Version: 7.7.3
        Flash Player: Version: 15.0.0.239 - SDK 10.6 Support
        Default Browser: Version: 600 - SDK 10.10
        SharePointBrowserPlugin: Version: 14.4.6 - SDK 10.6 Support
        Silverlight: Version: 5.1.10411.0 - SDK 10.6 Support
        iPhotoPhotocast: Version: 7.0 - SDK 10.8
    User Internet Plug-ins: ℹ️
        CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 Support
    3rd Party Preference Panes: ℹ️
        Flash Player  Support
    Time Machine: ℹ️
        Skip System Files: NO
        Auto backup: YES
        Volumes being backed up:
            SuperCool: Disk size: 510.88 GB Disk used: 188.43 GB
        Destinations:
            NATURE2020 [Local]
            Total size: 319.03 GB
            Total number of backups: 4
            Oldest backup: 2014-09-10 17:52:44 +0000
            Last backup: 2014-11-19 21:23:34 +0000
            Size of backup disk: Too small
                Backup size 319.03 GB < (Disk used 188.43 GB X 3)
    Top Processes by CPU: ℹ️
             7%    WindowServer
             1%    launchservicesd
             0%    launchd
             0%    fontd
             0%    Core Sync
    Top Processes by Memory: ℹ️
        103 MB    mds_stores
        86 MB    Creative Cloud
        86 MB    Finder
        77 MB    WindowServer
        60 MB    systemstatsd
    Virtual Memory Information: ℹ️
        3.93 GB    Free RAM
        2.28 GB    Active RAM
        900 MB    Inactive RAM
        1.48 GB    Wired RAM
        2.25 GB    Page-ins
        0 B    Page-outs

  • NTSC vs PAL: difference in compatibility

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  • Brand new laptop, tried to install Ram upgrade and computer won't turn on (no bios, nothing)

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    Go to Solution.

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  • Hello, we have both Creative Cloud and Creative Cloud for teams. Can you help me with the difference and if i need to have both?

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    Please refer to Creative Cloud Help | Creative Cloud / Common Questions
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  • IMac 8.1 3.06 GHz w/6 MB Ram, Lion and dead HD? all I get is "Gray Screen w/wirlie gig" but now for a new twist a circle with a diagonal line, like don't go. Is this a DEAD HD?

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    Hi veerapaneni,
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    ('Notebooks','W01','FY14W01',35),
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    return Value
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    Else
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    If you have any question, please feel free to ask.
    Best regards,
    Qiuyun Yu
    Qiuyun Yu
    TechNet Community Support

  • My mac keeps freezing, i checked my ram fine, checked if SMART was verified it was, i reinstalled my software a few times and my RAM is 8gb used memory clean to make sure it wasnt a RAM probkem and my macbook is still freezing my RAM is 8gb i have

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  • Problems with Apple Preview filled forms and compatibility with Windows?

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  • Where's the music on iTunes, and what's with the quality and compatibility?

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