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Windows 7: Random shutdown - how do I debug??

21 Jul 2010   #1

Windows 7 Ultimate 32bit
 
 
Random shutdown - how do I debug??

Hi guys, new kid on the block, so be kind. I've upgraded my HTPC to Windows 7 Ultimate 32bit, and there is not much else on the box apart from My Movies, Arcsoft TMT3, and a couple of HTPC type utilities. Drivers are up to date as per the Gigabyte and ATI websites. All MS updates applied.

Machine randomly shuts down about 30-40 minutes into playing any blu-ray, but restarts OK (no apparent BSOD). I've been over as many of the power management options as I could find, but I can't see anything that might be causing it to shut down.

This might be an error, or it might simply be obeying a a parameter that I can't see. How do I find out what is causing the shutdown?

(FYI I have no real experience of debugging PCs, the last time I looked at a core dump, it was for an IBM 4300 series mainframe in the 1980's.............)

Thanks

Paul

My System SpecsSystem Spec
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21 Jul 2010   #2

Windows 7 Professional x64
 
 

Welcome to SF!

Try opening a command prompt and entering powercfg -lastwake

See if that tells you what woke the computer last.

Your problem sounds like it could possibly be caused by heat. Try testing your temps with Speedfan and posting the results.

SpeedFan - Access temperature sensor in your computer
My System SpecsSystem Spec
21 Jul 2010   #3

Windows 7 Ultimate 32bit
 
 

Thanks for the response. Not sure I was entirely clear, in the initial post. System does not restart itself, but can be restarted manually without problem. Anyhow....

I've attached a series of snapshots, don't mean much to me I'm afraid...... But I'm guessing that the burning fire symbols mean that the system is running hot. Graph shows from near start up and first 10-15 mins of playing a blu-ray standalone in TMT3. Video hardware acceleration is on, hence low CPU usage. No appreciable increase in temperature from initial values.

Thanks for the help, please let me know if there is anymore diagnostics that will help.
My System SpecsSystem Spec
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21 Jul 2010   #4

Windows 7 Ultimate 32bit
 
 

And yes, htpc is in a small case with all disk spaces occupied, passive cooled ATI HD45xx card, probably not enough ventilation etc etc
My System SpecsSystem Spec
21 Jul 2010   #5

Windows 7 Ultimate 32bit
 
 

OK, so I go back to the PC to check on progress and find this lot.....

There is also a minidump?
My System SpecsSystem Spec
21 Jul 2010   #6

Windows 7 Professional x64
 
 

Please follow these directions now: http://www.sevenforums.com/crashes-d...tructions.html
My System SpecsSystem Spec
21 Jul 2010   #7

Windows 7 Ultimate 32bit
 
 

as requested

windows 7 ult 32bit oem
not original os but system partitions reformatted before clean rebuild earlier today. hardware is 18months old.
My System SpecsSystem Spec
21 Jul 2010   #8

Windows 7 Professional x64
 
 

Your dump blames amdk8.sys, which is an AMD processor driver.

I would look on the computer manufacturer's website for an update for that.

If you post your system's maker and model, we should be able to check for you.

...Summary of the Dumps:
Code:

Built by: 7600.16539.x86fre.win7_gdr.100226-1909
Debug session time: Wed Jul 21 12:47:51.923 2010 (UTC - 4:00)
System Uptime: 0 days 5:55:16.624
BugCheck A, {f3e0, ff, 1, 8322e39d}
Probably caused by : amdk8.sys ( amdk8!C1Halt+4 )
BUGCHECK_STR:  0xA
PROCESS_NAME:  System
ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии
Just so you know, Speedfan is outdated, and you may consider an update.

I doubt that is the issue though, although it never hurts to update old programs.

What anti-virus are you using?
My System SpecsSystem Spec
21 Jul 2010   #9

Windows 7 Ultimate 32bit
 
 

No anti-virus on the machine yet, it was only rebuilt this morning..... Usually I'm a Zone Alarm user. The box is on my home network behind a firewall, and is not used for the internet or downloading.

The machine is a hybrid/mongrel, it has no single supplier. Mboard is a Gigabyte GA-MA78GM-S2H and drivers were downloaded from their site yesterday, and from ATI for the graphics card. Windows updates applied earlier today, so shouldn't that have taken care of the processor drivers?

As for speedfan, I gor that off their homesite when you suggested it earlier. It wasn't exactly obvious where to download from, so I may have inadvertantly stumbled on a link to a previous version.

How would you suggets that I should proceed? I just watched a DVD on the problematic machine, without any problems. Maybe the issue is blu-ray related, or ARcoft TMT3, as I only use that for blu-ray. I have PowerDVD as an alternative taht I could try.

And many thanks for your help, if I have not said so before.
My System SpecsSystem Spec
21 Jul 2010   #10

Windows 7 Professional x64
 
 

What power supply do you have?

Just a preventative measure for future problems: ZoneAlarm is well-known for causing BSODs in Vista and 7. If I see it in a dump, first thing I recommend is removing it.

I recommend the free Microsoft Security Essentials and Windows Firewall.
My System SpecsSystem Spec
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 Random shutdown - how do I debug??




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