Excel 2007 Random Crashes - Need Help

Question

I have three users reporting random crashes in Excel. Only one of their Event Logs contains any pertinent information.  I've tried searching and have tried to fix based off two technet articles I found.. however, no luck.
Can anyone assist me in diagnosing these?
Log Name:      Application
Source:        Application Error
Date:          10/17/2014 10:31:42 AM
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      [email protected]
Description:
Faulting application name: EXCEL.EXE, version: 12.0.6425.1000, time stamp: 0x49d64dd6
Faulting module name: EXCEL.EXE, version: 12.0.6425.1000, time stamp: 0x49d64dd6
Exception code: 0xc0000005
Fault offset: 0x0002637c
Faulting process id: 0x338
Faulting application start time: 0x01cfea1f62c5bd01
Faulting application path: C:\Program Files (x86)\Microsoft Office\Office12\EXCEL.EXE
Faulting module path: C:\Program Files (x86)\Microsoft Office\Office12\EXCEL.EXE
Report Id: b164b26e-5612-11e4-806b-546629d0db16
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" />
    <EventID Qualifiers="0">1000</EventID>
    <Level>2</Level>
    <Task>100</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-10-17T15:31:42.000000000Z" />
    <EventRecordID>6353</EventRecordID>
    <Channel>Application</Channel>
    <Computer>User-PC-Name</Computer>
    <Security />
  </System>
  <EventData>
    <Data>EXCEL.EXE</Data>
    <Data>12.0.6425.1000</Data>
    <Data>49d64dd6</Data>
    <Data>EXCEL.EXE</Data>
    <Data>12.0.6425.1000</Data>
    <Data>49d64dd6</Data>
    <Data>c0000005</Data>
    <Data>0002637c</Data>
    <Data>338</Data>
    <Data>01cfea1f62c5bd01</Data>
    <Data>C:\Program Files (x86)\Microsoft Office\Office12\EXCEL.EXE</Data>
    <Data>C:\Program Files (x86)\Microsoft Office\Office12\EXCEL.EXE</Data>
    <Data>b164b26e-5612-11e4-806b-546629d0db16</Data>
  </EventData>
</Event>

Answer 1

Thanks Allan. I have a friend going down to Lewiston this friday so I was thinking of possibly trying to stop by that store. In terms of the PCLe lane width it does report x16. I've been running SMC fan control and that has been pretty stable temp wise, the fans haven't shot up to 6000 and the computer hasn't felt warm when it has crashed. The back has been unobstructed every time - it has crashed on my lap, on my desk, and on my floor (wood) I know previously the system kept slowing down and there were a few tasks hogging system ram. This was the forum link I posted that in, although I never got much feedback about what to do.
http://discussions.apple.com/thread.jspa?threadID=2320137&tstart=0
Not sure if that helps explain anything. I'm thinking of calling apple customer relations today and seeing if they can't help with anything in terms of the numerous issues/repairs this has gone through.