Is there a maximum RAM capacity for a Macbook Pro 13 inch Mid 2009?

My questions is essentially, is there a maximum RAM capacity for a Macbook Pro 13 inch Mid 2009? I'm aware there are two RAM slots in my machine, but in past experiences with other laptops/desktop computers (not Apple) there was a default maximum which couldn't be overidden despite how much RAM was inserted.

You can upgrade up to 8GB using 2 x 4GB 204-pin PC3-8500 (1066 MHz) DDR3 modules. That's the maximum (unlike 2011 and later models which Apple tells you can only hold 8GB but can actually run 16GB).
If you do order RAM, order from a Mac memory specialist - Crucial, OWC, Corsair, etc.
Good luck,
Clinton

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    EtreCheck version: 2.1.1 (104)
    Report generated 10 December 2014 3:30:26 pm IST
    Hardware Information: ℹ️
      MacBook Pro (13-inch, Mid 2009) (Verified)
      MacBook Pro - model: MacBookPro5,5
      1 2.26 GHz Intel Core 2 Duo CPU: 2-core
      5 GB RAM Upgradeable
      BANK 0/DIMM0
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      BANK 1/DIMM0
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      Bluetooth: Old - Handoff/Airdrop2 not supported
      Wireless:  en1: 802.11 a/b/g/n
    Video Information: ℹ️
      NVIDIA GeForce 9400M - VRAM: 256 MB
      Color LCD 1280 x 800
    System Software: ℹ️
      OS X 10.10.1 (14B25) - Uptime: 4:42:54
    Disk Information: ℹ️
      WDC WD5000LPVT-80G33T2 disk0 : (500.11 GB)
      S.M.A.R.T. Status: Verified
      EFI (disk0s1) <not mounted> : 210 MB
      [redacted] (disk0s2) / : 499.25 GB (142.01 GB free)
      Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
      HL-DT-ST DVDRW  GS23N 
    USB Information: ℹ️
      Apple Inc. Built-in iSight
      Apple Internal Memory Card Reader
      Apple Inc. Apple Internal Keyboard / Trackpad
      Apple Computer, Inc. IR Receiver
      Apple Inc. BRCM2046 Hub
      Apple Inc. Bluetooth USB Host Controller
    Gatekeeper: ℹ️
      Anywhere
    Kernel Extensions: ℹ️
      /System/Library/Extensions
      [not loaded] com.driver.KUSBModemCDC07 (4.0.2) [Support]
      [not loaded] com.driver.KUSBModemDataA07 (4.0.2) [Support]
    Startup Items: ℹ️
      JHHPortDetect: Path: /Library/StartupItems/JHHPortDetect
      Sudochmod: Path: /Library/StartupItems/Sudochmod
      Startup items are obsolete in OS X Yosemite
    Launch Agents: ℹ️
      [not loaded] com.adobe.AAM.Updater-1.0.plist [Support]
      [running] com.bjango.istatmenusagent.plist [Support]
      [loaded] com.google.keystone.agent.plist [Support]
      [loaded] com.oracle.java.Java-Updater.plist [Support]
      [running] jp.co.canon.CUPSCAPT.BG.plist [Support]
      [loaded] org.macosforge.xquartz.startx.plist [Support]
    Launch Daemons: ℹ️
      [loaded] com.adobe.fpsaud.plist [Support]
      [invalid?] com.adobe.SwitchBoard.plist [Support]
      [running] com.bjango.istatmenusdaemon.plist [Support]
      [loaded] com.google.keystone.daemon.plist [Support]
      [loaded] com.microsoft.office.licensing.helper.plist [Support]
      [loaded] com.oracle.java.Helper-Tool.plist [Support]
      [loaded] com.oracle.java.JavaUpdateHelper.plist [Support]
      [loaded] org.macosforge.xquartz.privileged_startx.plist [Support]
      [loaded] org.tcpdump.chmod_bpf.plist [Support]
    User Launch Agents: ℹ️
      [loaded] com.adobe.ARM.[...].plist [Support]
    User Login Items: ℹ️
      iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
      Caffeine Application (/Applications/Caffeine.app)
      AdobeResourceSynchronizer ApplicationHidden (/Applications/Adobe Reader.app/Contents/Support/AdobeResourceSynchronizer.app)
      Dropbox Application (/Applications/Dropbox.app)
      HyperDock Helper UNKNOWN (missing value)
    Internet Plug-ins: ℹ️
      o1dbrowserplugin: Version: 5.38.6.0 - SDK 10.8 [Support]
      Default Browser: Version: 600 - SDK 10.10
      AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 [Support]
      FlashPlayer-10.6: Version: 15.0.0.246 - SDK 10.6 [Support]
      Flash Player: Version: 15.0.0.246 - SDK 10.6 Mismatch! Adobe recommends 16.0.0.235
      QuickTime Plugin: Version: 7.7.3
      googletalkbrowserplugin: Version: 5.38.6.0 - SDK 10.8 [Support]
      SharePointBrowserPlugin: Version: 14.0.0 [Support]
      AdobePDFViewer: Version: 11.0.09 - SDK 10.6 [Support]
      zako: Version: zako 1.0.0.0 - SDK 10.8 [Support]
      iPhotoPhotocast: Version: 7.0 - SDK 10.8
      JavaAppletPlugin: Version: Java 7 Update 71 Check version
    User internet Plug-ins: ℹ️
      BlueStacks Install Detector: Version: Unknown
    Safari Extensions: ℹ️
      AdBlock
      ClickToFlash
      Awesome Screenshot
      Breaking News
      The New York Times
    3rd Party Preference Panes: ℹ️
      Flash Player  [Support]
      Java  [Support]
    Time Machine: ℹ️
      Skip System Files: NO
      Mobile backups: ON
      Auto backup: YES
      Volumes being backed up:
      Arupreet: Disk size: 499.25 GB Disk used: 357.24 GB
      Destinations:
      CHIKKI [Local]
      Total size: 331.41 GB
      Total number of backups: 2
      Oldest backup: 2014-06-10 13:36:00 +0000
      Last backup: 2014-09-08 13:57:40 +0000
      Size of backup disk: Too small
      Backup size 331.41 GB < (Disk used 357.24 GB X 3)
    Top Processes by CPU: ℹ️
          8% python
          3% WindowServer
          3% uTorrent
          2% SystemUIServer
          0% mtmfs
    Top Processes by Memory: ℹ️
      1.29 GB JavaAppLauncher
      123 MB SystemUIServer
      102 MB iStatMenusDaemon
      86 MB com.apple.WebKit.WebContent
      81 MB WindowServer
    Virtual Memory Information: ℹ️
      50 MB Free RAM
      1.97 GB Active RAM
      1.90 GB Inactive RAM
      673 MB Wired RAM
      6.70 GB Page-ins
      8 MB Page-outs
    Diagnostics Information: ℹ️
      Dec 10, 2014, 10:48:11 AM Self test - passed
      Dec 9, 2014, 02:54:15 AM VLC_2014-12-09-025415_Arus-MacBook-Pro.crash

    Not sure if using Terminal would help:
    Launch Activity Monitor
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    Launch Terminal
    type sudo purge
    password
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    Message was edited by: Dr. Z.
    Message was edited by: Dr. Z.

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