MacBook Pro won't boot after 10.6.8 update.

I completely erased my hard drive, reinstalled Snow Leopard and updated to 10.6.7. I then performed an Apple Hardware Test and verified the disk using disk utility. Both tests were successful. I then updated to 10.6.8 using the combo update and restarted my MacBook Pro. The boot process ran fine until the system locked up on the bright blue screen. No peripherals were connected to the laptop during this process. I powered the laptop down using the power button and turned it on again. This time, I entered verbose mode. The last line of text that I see before the screen turns black is "[ PCI configuration begin ]". Can anyone assist me with this issue?
My System Profile is as follows.
Hardware Overview:
  Model Name:          MacBook Pro
  Model Identifier:          MacBookPro3,1
  Processor Name:          Intel Core 2 Duo
  Processor Speed:          2.4 GHz
  Number Of Processors:          1
  Total Number Of Cores:          2
  L2 Cache:          4 MB
  Memory:          3 GB
  Bus Speed:          800 MHz
  Boot ROM Version:          MBP31.0070.B07
  SMC Version (system):          1.16f11
  Serial Number (system):          System Serial#
  Hardware UUID:          00000000-0000-1000-8000-001B639863A4
  Sudden Motion Sensor:
  State:          Enabled

Might be time to replace the PRAM battery.  That's not the normally accessible battery, but it is one that often fails after 4 years.

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    com.apple.driver.AppleHDA          2.4.7fc4
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    com.apple.driver.AppleUSBTCKeyEventDriver          237.1
    com.apple.driver.AppleUSBTCKeyboard          237.1
    com.apple.driver.AppleIRController          320.15
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    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
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    com.apple.iokit.SCSITaskUserClient          3.5.6
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    com.apple.driver.AppleUSBEHCI          621.4.6
    com.apple.driver.AppleUSBUHCI          621.4.0
    com.apple.driver.AppleSmartBatteryManager          161.0.0
    com.apple.driver.AppleRTC          1.5
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleACPIButtons          1.8
    com.apple.driver.AppleSMBIOS          1.9
    com.apple.driver.AppleACPIEC          1.8
    com.apple.driver.AppleAPIC          1.7
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    com.apple.driver.AppleIntelCPUPowerManagement          214.0.0
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    com.apple.kext.triggers          1.0
    com.apple.driver.DspFuncLib          2.4.7fc4
    com.apple.iokit.IOAudioFamily          1.9.2fc7
    com.apple.kext.OSvKernDSPLib          1.12
    com.apple.iokit.IOFireWireIP          2.2.5
    com.apple.driver.AppleHDAController          2.4.7fc4
    com.apple.iokit.IOHDAFamily          2.4.7fc4
    com.apple.iokit.IOSurface          86.0.4
    com.apple.iokit.IOBluetoothFamily          4.1.7f4
    com.apple.driver.IOPlatformPluginLegacy          1.0.0
    com.apple.driver.IOPlatformPluginFamily          5.4.1d13
    com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.1.7f4
    com.apple.driver.AppleSMC          3.1.5d4
    com.apple.nvidia.nv50hal          8.1.6
    com.apple.NVDAResman          8.1.6
    com.apple.driver.AppleGraphicsControl          3.4.5
    com.apple.driver.AppleBacklightExpert          1.0.4
    com.apple.iokit.IONDRVSupport          2.3.7
    com.apple.driver.AppleSMBusController          1.0.11d1
    com.apple.iokit.IOGraphicsFamily          2.3.7
    com.apple.driver.AppleUSBMultitouch          237.3
    com.apple.iokit.IOUSBHIDDriver          623.4.0
    com.apple.driver.AppleUSBMergeNub          621.4.6
    com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.6
    com.apple.iokit.IOUSBMassStorageClass          3.5.2
    com.apple.driver.AppleUSBComposite          621.4.0
    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.6
    com.apple.iokit.IOBDStorageFamily          1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
    com.apple.iokit.IOATAPIProtocolTransport          3.5.0
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.6
    com.apple.iokit.IOUSBUserClient          630.4.4
    com.apple.iokit.IO80211Family          530.5
    com.apple.driver.AppleEFINVRAM          2.0
    com.apple.iokit.IONetworkingFamily          3.0
    com.apple.iokit.IOFireWireFamily          4.5.5
    com.apple.iokit.IOAHCIFamily          2.5.1
    com.apple.iokit.IOATAFamily          2.5.1
    com.apple.driver.AppleEFIRuntime          2.0
    com.apple.iokit.IOUSBFamily          635.4.0
    com.apple.iokit.IOHIDFamily          1.8.1
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.sandbox          220.3
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.security.TMSafetyNet          7
    com.apple.driver.DiskImages          345
    com.apple.iokit.IOStorageFamily          1.8
    com.apple.driver.AppleKeyStore          28.21
    com.apple.driver.AppleACPIPlatform          1.8
    com.apple.iokit.IOPCIFamily          2.8
    com.apple.iokit.IOACPIFamily          1.4
    com.apple.kec.corecrypto          1.0
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      Number of Processors:          1
      Total Number of Cores:          2
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      Bus Speed:          800 MHz
      Boot ROM Version:          MBP31.0070.B07
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      Serial Number (system):          W87422HUYAM
      Hardware UUID:          00000000-0000-1000-8000-001B63A5B553
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    Replace the Ram, buy from OWC or Crucial, buy the Ram Apple recommend, don't rely on "it should work"

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    Hi.
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    enoreger wrote:
    Hi.
    Hi, and welcome to the forums.
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    Hey Pierre6405,
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    http://support.apple.com/en-us/HT201177
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    Do you have a Time Machine backup? If so, erase the disk and reinstall OS X. HOWEVER, DO NOT CONTINUE UNLESS YOU HAVE A TIME MACHINE BACKUP!!! IF YOU DO NOT HAVE A BACKUP AND STILL DECIDE TO CONTINUE, BE AWARE THAT ALL YOUR DATA WILL BE LOST FOREVER!!!
    Erase and Reinstall OS X
    Note: This will delete all data on the disk. Back up important files before continuing.
    Erasing and then reinstalling OS X can give you a fresh start, making your computer exactly as it was whenever you received it from Apple. This can solve various problems such as corrupt system files.
    Shut down the computer by going to Apple () > Shut Down…
    Select Shut Down or allow the computer to shut down automatically.
    Plug in the MagSafe power adapter into a power source and then connect it to your Mac if you have not already done so.
    Press the Power Button to turn on the computer.
    Press and hold both the R and Command (⌘) keys on the keyboard until the Recovery partition loads. If this does not work, shut down the computer, press the Power Button to turn on the computer, and then hold in the Alt (⌥) button immediately after you press the power button. Then, select the Recovery HD partition to boot up in the Recovery HD partition.
    Select Disk Utility and then choose Continue.
    Select your startup disk (Macintosh HD by default) from the left.
    Select the Erase tab.
    Choose the Format pop-up menu and choose Mac OS Extended (Journaled), enter a name for your disk, and then click Erase.
    After the disk is erased, choose Disk Utility > Quit Disk Utility.
    Select Reinstall OS X and then choose Continue.
    Follow the instructions.
    I hope I helped.
    Austin

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