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What do the codes in this bug check mean?

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Need to decipher what a bug check is saying.  
Also cannot get access to the .dmp file or .xml file that are supposed to help, , though i have changed the permissions and taken ownership.  This is not a web server, IIS is not running on  the server.
Machine reboots every 2 hours or so.  bug-check.txt. This started suddenly about 3 weeks ago,nothing new was installed,  it's rebooting more frequently now.Dell Pro Support was unable to assist.
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Dr. KlahnPrincipal Software Engineer

Commented:
If you can post the dump we may be able to help.

Try this:  Pull the system drive out, take it to another system, attach it there and make a copy of the dump file.  

This started suddenly about 3 weeks ago,nothing new was installed,  it's rebooting more frequently now.

A BSOD which becomes progressively more frequent suggests a hardware problem which is becoming worse.

Also:

a) Download a copy of Memtest-86/+, boot it on the system and let it run for at least 12 hours.  This will not completely rule out memory problems (because the problem is intermittent) but it will give some assurance that the memory is not failing.  There are two versions; run them both.

https://www.memtest.org/

https://www.memtest86.com/

b) Download a temperature monitoring program and see what the temperature of the CPU and hard drives is, e.g., Open Hardware Monitor.

https://openhardwaremonitor.org/
Top Expert 2013

Commented:
what happens when you try to copy the dmp file at  C:\Windows\Minidump\121019-14648-01.dmp  ?
it should be accessible.
if not, try accessing it in safe mode, or hook the drive to a working PC to copy the file
q

Author

Commented:
Thank you both!

Dr. Klahn, the system is in production as a server for dental office software, can't take it down for that long until the weekend, Will see what I can do.  Dell diags (took 2 hours) and came up clean.

Nobus, file copying gives access denied.  I

Both, I can't really risk messing around too much with the drive until I have a replacement solution in place. But will follow up with your suggestion when I do.
Top Expert 2013

Commented:
check event viewer - it may have more info
q

Author

Commented:
I did that already, that's where the bug check codes came from (same info as appears in the BSOD notice), there is no more info than that, other events that refer to processor speed, power settings, all led nowhere.  Hard to fathom how there are so many sites with bug code translations, but none of them are really definitive, and none have the FFFF800020A67DE.
Top Expert 2013

Commented:
then i suggest to update all drivers and bios
Principal Software Engineer
Commented:
I must respectfully disagree with nobus on the specific issue of updating drivers and BIOS.  If there have been no Windows or driver updates installed (neither should happen without extremely good reason on a mission-critical system that works and has no internet access, and certainly not automatically) and no changes made in the application software but the problem is getting worse, to me that points at a hardware problem.  Drop-dead halts also, to me, point at a hardware problem.  

Updating a BIOS is always risky due to the possibility of failure and bricking the system.  It is also frequently impossible to downgrade a BIOS once it has been upgraded, so if a new problem pops up after the BIOS upgrade then it can be impossible to resolve it.

I suggest cloning the drive, then swapping it into the cold spare system and see if the problem is resolved.  Since this is a high-reliability system and the business depends on it, there must be a cold spare -- if you don't know where it is, ask where they keep it -- see if this alleviates the issue.  Differential diagnosis:  If the problem goes away in the cold spare, then it is a hardware problem in the original system.  If the problem persists, then it is not a hardware issue and you can start chasing software possibilities.
q

Author

Commented:
Hi,

I agree, I would not update the bios or drivers. - too risky.  I moved the critical application to a different machine so they are working fine now.  I will still tackle the old machine because it is still under warranty, so if I need to get parts replaced, I will.  And, i want to know what the problem really is.

I'm closing this.
q

Author

Commented:
Thanks for your suggestions.  I appreciate your taking the time to answer