PowerEdge R710 BSOD

I have a R710 server with all updated firmware running 2012 R2 and I get periodic unexpected system crashes BSOD's.
I would like to get some help diagnosing this issue. not sure what could be causing this. I'm pasting info from event viewer and OSMA below for clues:

Log Name:      System
Source:        Microsoft-Windows-Kernel-Power
Date:          4/29/2015 9:50:53 PM
Event ID:      41
Task Category: (63)
Level:         Critical
Keywords:      (2)
User:          SYSTEM
Computer:      server.GDS.lan
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
    <Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
    <TimeCreated SystemTime="2015-04-30T04:50:53.256791400Z" />
    <Correlation />
    <Execution ProcessID="4" ThreadID="8" />
    <Security UserID="S-1-5-18" />
    <Data Name="BugcheckCode">313</Data>
    <Data Name="BugcheckParameter1">0x3</Data>
    <Data Name="BugcheckParameter2">0xffffd00023d4a2f0</Data>
    <Data Name="BugcheckParameter3">0xffffd00023d4a248</Data>
    <Data Name="BugcheckParameter4">0x0</Data>
    <Data Name="SleepInProgress">0</Data>
    <Data Name="PowerButtonTimestamp">0</Data>
    <Data Name="BootAppStatus">0</Data>

Error      4/29/2015 9:51:13 PM      BugCheck      1001      None
The computer has rebooted from a bugcheck.  The bugcheck was: 0x00000139 (0x0000000000000003, 0xffffd00023d4a2f0, 0xffffd00023d4a248, 0x0000000000000000). A dump was saved in: C:\Windows\MEMORY.DMP. Report Id: 042915-20937-01.

OMSA errors:

A runtime critical stop occurred. (frequent)
CPU 2 has an internal error (IERR). (frequent)

whocrashed report attached as well.
Anthony H.Asked:
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According to the OMSA error, you have a faulty CPU 2.

If it is still under warranty, contact dell to get a replacement.

Since it is infrequent, you have to achieve the conditions under which this occurs.
Changing the advanced settings to dump the complete memory. may ....

But I think contacting Dell and getting a replacement is the quickest resolution. All the tests you would run would likely lead to the same inevitable conclusion, CPU.
Anthony H.Author Commented:
unfortunately out of warranty period.

I don't need two cpu's, is it possible to disable CPU 2?
You have to get a CPU blank, WK640 Dell Part number
Note you will lose access to all memory in bank B when CPU2 is removed.

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Anthony H.Author Commented:
Do I also need a CPU blank?
Saw that heat sink blank, but I think you need the cou blank.

The link fromthe forum includes Dell part number, check with them.
You can also find on eBay CPU pairs that ....
Mr TorturSystem EngineerCommented:
I think you can have a look at your bios settings because there is a lot of server where you can disable a cpu.
andyalderSaggar maker's framemakerCommented:
Removing the CPU and putting the heatsink back should preserve airflow. Don't forget to move all the RAM over to CPU1 as it can't be accessed in CPU2 sockets.
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Windows Server 2012

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