IMac freezes and sounds 3 beeps since Mavericks update

I updated my iMac to Mavericks yesterday and now it intermittantly freezes and has three beeps.  I am forced to hold the power button in and then restart it.  I do not use Google Drive.  Any suggestions.  I know three beeps is supposed to be RAM related. But this only started happening the right after the Mavericks upgrade. 

3 beeps indicate a RAM issue. If you upgraded the RAM yourself then please look at:
Failed RAM (RAM DIMMS can and do fail)
Incorrect RAM
Unseated RAM
If you did not upgrade the RAM then the issue may be failed RAM. The upgrade to Mavericks is almost certainly coincidence.

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  • Imac freezes with gray screen after mavericks update

    I was updating my imac system and it is frozen in a gray screen, like it is restarting.
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    Take each of these steps that you haven't already tried. Stop when the problem is resolved.
    Step 1
    The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.   
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    b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
    c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
    d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
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    If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
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    Step 4
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    Step 12
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    Report generated August 26, 2014 at 12:37:45 PM CDT
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      iMac (21.5-inch, Late 2009) (Verified)
      iMac - model: iMac10,1
      1 3.06 GHz Intel Core 2 Duo CPU: 2 cores
      4 GB RAM
    Video Information: ?
      NVIDIA GeForce 9400 - VRAM: 256 MB
      iMac 1920 x 1080
    System Software: ?
      OS X 10.9.4 (13E28) - Uptime: 0 days 1:30:4
    Disk Information: ?
      WDC WD5000AAKS-40V2B0 disk0 : (500.11 GB)
      S.M.A.R.T. Status: Verified
      EFI (disk0s1) <not mounted>: 209.7 MB
      Macintosh HD (disk0s2) / [Startup]: 499.25 GB (159.01 GB free)
      Recovery HD (disk0s3) <not mounted>: 650 MB
      HL-DT-ST DVDRW  GA11N 
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      Native Instruments Maschine Controller MK2
      Apple Inc. Built-in iSight
      Apple Internal Memory Card Reader
      Apple Computer, Inc. IR Receiver
      M-Audio Axiom 61
      Apple Inc. BRCM2046 Hub
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      [not loaded] com.paceap.kext.pacesupport.panther (5.8 - SDK 10.3) Support
      [loaded] com.paceap.kext.pacesupport.snowleopard (5.8 - SDK 10.6) Support
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      [not loaded] com.rane.driver.sixtytwo.10.6 (1.1.0f3 - SDK 10.6) Support
      [not loaded] com.rane.driver.sl2.10.6 (1.0.1f3) Support
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      [not loaded] com.rane.driver.sl4.10.6 (1.0.1f2) Support
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      [not loaded] com.rim.driver.BlackBerryUSBDriverVSP (0.0.45) Support
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