Q: RAM iMac 2009 (late) :; 21.5";  10.11.4/5

In Etre checking Beachballing, it notes that there is not enough RAM for some Apple procedures.  Many apps are no longer supported in my 2009 mode.

I recently purchased  from OWC. 4G RAM for my 21.5' IMac thinking it seemed easy enough for even me to install.  When i tried, the modules extended out about 1/8" more than the originals.  I could not budge the originals to remove and compare so i did not install the new ones.  Is it possible the newer modules are a bit larger than the originals?

This is the copy of my Etre Check:

EtreCheck version: 3.0.3 (307)

Report generated 2016-09-11 11:50:58

Download EtreCheck from https://etrecheck.com

Runtime 5:24

Performance: Below Average

Click the [Support] links for help with non-Apple products.

Click the [Details] links for more information about that line.

Problem: No problem - just checking

Hardware Information: ⓘ

    iMac (21.5-inch, Late 2009)

    [Technical Specifications] - [User Guide] - [Warranty & Service]

    iMac - model: iMac10,1

    1 3.33 GHz Intel Core 2 Duo CPU: 2-core

    4 GB RAM Upgradeable - [Instructions]

        BANK 0/DIMM0

            Empty  

        BANK 1/DIMM0

            Empty  

        BANK 0/DIMM1

            2 GB DDR3 1067 MHz ok

        BANK 1/DIMM1

            2 GB DDR3 1067 MHz ok

    Bluetooth: Old - Handoff/Airdrop2 not supported

    Wireless:  en1: 802.11 a/b/g/n

Video Information: ⓘ

    ATI Radeon HD 4670 - VRAM: 256 MB

        iMac 1280 x 720

System Software: ⓘ

    OS X El Capitan 10.11.4 (15E65) - Time since boot: about one hour

Disk Information: ⓘ

    Hitachi HDS722020ALA330 disk0 : (2 TB) (Rotational)

        EFI (disk0s1) <not mounted> : 210 MB

        10.11.4-HD-450gb (disk0s2) / : 450.01 GB (130.99 GB free)

        Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB

        588gb (disk0s4) /Volumes/588gb : 588.90 GB (588.33 GB free)

        Recovery HD (disk0s5) <not mounted>  [Recovery]: 650 MB

        10.6.8-BUp-1T-402GB (disk0s6) /Volumes/10.6.8-BUp-1T-402GB : 401.44 GB (67.06 GB free)

        10.11.5-521gb (disk0s7) /Volumes/10.11.5-521gb : 557.75 GB (305.43 GB free)

        disk0s8 (disk0s8) <not mounted> : 650 MB

    PIONEER DVD-RW  DVRTS09   ()

USB Information: ⓘ

    Apple Computer, Inc. IR Receiver

    Apple Inc. BRCM2046 Hub

        Apple Inc. Bluetooth USB Host Controller

    Apple Inc. Built-in iSight

    Apple Card Reader

Configuration files: ⓘ

    /etc/sudoers, File size 1242 but expected 2299

Gatekeeper: ⓘ

    Mac App Store and identified developers

Kernel Extensions: ⓘ

        /Library/StartupItems/BRESINKx86Monitoring

    [not loaded]    com.bresink.driver.BRESINKx86Monitoring (8.0 - 2012-01-22) [Support]

Startup Items: ⓘ

    BRESINKx86Monitoring: Path: /Library/StartupItems/BRESINKx86Monitoring

    Startup items are obsolete in OS X Yosemite

System Launch Agents: ⓘ

    [not loaded]    8 Apple tasks

    [loaded]    160 Apple tasks

    [running]    70 Apple tasks

System Launch Daemons: ⓘ

    [not loaded]    43 Apple tasks

    [loaded]    162 Apple tasks

    [running]    83 Apple tasks

Launch Agents: ⓘ

    [loaded]    com.google.keystone.agent.plist (2016-08-06) [Support]

Launch Daemons: ⓘ

    [loaded]    com.adobe.fpsaud.plist (2016-06-28) [Support]

    [loaded]    com.barebones.authd.plist (2012-07-08) [Support]

    [not loaded]    com.barebones.textwrangler.plist (2011-08-20) [Support]

    [loaded]    com.google.keystone.daemon.plist (2016-09-04) [Support]

    [loaded]    com.malwarebytes.HelperTool.plist (2016-09-08) [Support]

User Login Items: ⓘ

    smcFanControl    Application  (/Applications/smcfancontrol_2_5_2 2/smcFanControl.app)

    Find Any File Hotkey    Application  (/Applications/Find Any File 2.app/Contents/Library/LoginItems/Find Any File Hotkey.app)

Internet Plug-ins: ⓘ

    Flip4Mac WMV Plugin: 2.4.2.4 (2012-04-08) [Support]

    FlashPlayer-10.6: 22.0.0.209 - SDK 10.9 (2016-08-11) [Support]

    QuickTime Plugin: 7.7.3 (2016-03-12)

    Flash Player: 22.0.0.209 - SDK 10.9 (2016-08-11) [Support]

    Default Browser: 601 - SDK 10.11 (2016-03-12)

    JavaAppletPlugin: 15.0.1 - SDK 10.11 (2012-06-14) Check version

    Google Earth Web Plug-in: 7.1 (2013-10-07) [Support]

    RealPlayer Plugin: Unknown (2014-08-09) [Support]

    Silverlight: 5.1.50428.0 - SDK 10.6 (2016-08-29) [Support]

    iPhotoPhotocast: 7.0 - SDK 10.7 (2012-04-01)

Safari Extensions: ⓘ

    The New York Times - The New York Times - http://www.nytimes.com (2011-09-09)

3rd Party Preference Panes: ⓘ

    Flash Player (2016-06-28) [Support]

    Flip4Mac WMV (2012-03-20) [Support]

    Tuxera NTFS (2014-08-31) [Support]

Time Machine: ⓘ

    Skip System Files: NO

    Mobile backups: OFF

    Auto backup: NO - Auto backup turned off

    Volumes being backed up:

        10.11.4-HD-450gb: Disk size: 450.01 GB Disk used: 319.02 GB

    Destinations:

        2T-™-BkUps-928GB [Local]

        Total size: 928.37 GB

        Total number of backups: 1

        Oldest backup: 5/18/16, 7:59 PM

        Last backup: 5/18/16, 7:59 PM

        Size of backup disk: Too small

            Backup size 928.37 GB < (Disk used 319.02 GB X 3)

        Untitled-3T-1.16TB [Local]

        Total size: 1.16 TB

        Total number of backups: 29

        Oldest backup: 5/10/16, 7:08 AM

        Last backup: 5/19/16, 11:49 AM

        Size of backup disk: Adequate

            Backup size 1.16 TB > (Disk used 319.02 GB X 3)

Top Processes by CPU: ⓘ

         2%    WindowServer

         1%    postqueue

         1%    aslmanager

         0%    kernel_task

         0%    fontd

Top Processes by Memory: ⓘ

    448 MB    kernel_task

    246 MB    com.apple.WebKit.WebContent

    139 MB    mdworker(4)

    102 MB    Safari

    66 MB    Preview

Virtual Memory Information: ⓘ

    102 MB    Free RAM

    3.90 GB    Used RAM (1.26 GB Cached)

    17 MB    Swap Used

Diagnostics Information: ⓘ

    Sep 11, 2016, 10:42:25 AM    Self test - passed

    Sep 7, 2016, 11:46:37 PM    /Library/Logs/DiagnosticReports/Kernel_2016-09-07-234637_[redacted].panic [Details]

    Sep 5, 2016, 02:58:36 PM    /Library/Logs/DiagnosticReports/Kernel_2016-09-05-145836_[redacted].panic [Details]