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Windows 7: Computer restart unmotivated.


17 Aug 2013   #1

Windows 7 Ultimate
 
 
Computer restart unmotivated.

I have encountered, that my computer does restart unmotivated, and suddenly.

Could it be the backup batteri for the BIOS ?.

Is there any log somewhere ?

My System SpecsSystem Spec
.

17 Aug 2013   #2

Microsoft Community Contributor Award Recipient

Windows 7 Professional 64bit
 
 

Hi Darkhorse,

If the CMOS settings are incorrect due to a failing CMOS battery,
that may possibly account for the reboots, although there are other causes,
like bad memory, overheating issues and possibly a failing PSU.

Do you get a CMOS checksum error at boot? Is the system time incorrect frequently?
If so replace the battery.

You can stop the restart problem by stopping automatic startup when your computer's having a problem by way of System Failure Settings to Stop Automatic Restarts
(bear in mind this will not fix the issue, just stop the restarts):

1. Click Start and Open the Control Panel, choose icon view
2. Go to System, Click on System.
3. Select Advanced System Settings and choose Advanced tab.
4. Under Startup and Recovery, click on Settings.
5. Under System failure uncheck Automatically restart.

Check all fans are running correctly, the inside of the case is free of dust (which can act like an insulator).
Monitoring the temperature of the system using HWMonitor

Take memtest. Run for 8 passes and test each stick in a know good slot for an additional 6 passes.

http://www.sevenforums.com/tutorials/105647-ram-test-memtest86.html
Tip   Tip
Run these tests overnight, pay particular attention to #3 in tutorial


cheers

Dave
My System SpecsSystem Spec
18 Aug 2013   #3

Windows 7 Ultimate
 
 

@Northernsoul55

Hi and thanks for your reply to my query.


I will run through your suggestions, and will report back after.
My System SpecsSystem Spec
.


18 Aug 2013   #4

Microsoft Community Contributor Award Recipient

Windows 7 Professional 64bit
 
 

No problem, look forward to your reply.

cheers

Dave
My System SpecsSystem Spec
19 Aug 2013   #5

Windows 7 Ultimate
 
 

Back again after the tests.

I have not received any CMOS checksum errors. The system time is ok.

I stopped the restart from your advice.

Also I removed dust from the fan on the CPU. Was not a huge amount, and I remove it often.

The HWMonitor and MEMTEST results are shown in the dumps here.


Attached Thumbnails
Computer restart unmotivated.-memtest.jpg  
Attached Images
 
My System SpecsSystem Spec
19 Aug 2013   #6

Microsoft Community Contributor Award Recipient

Windows 7 Professional 64bit
 
 

Hi,

Looks to me like your Vcore voltage is too low, but I am not 100% so I have
asked another member Essenbe to check it out for you.
(Please be patient as he is off-line at the moment)

You could check in the BIOS to see if your settings are set to stock?

How is the computer now, has the restarts stopped since disabling Automat restart?

cheers

Dave
My System SpecsSystem Spec
19 Aug 2013   #7

Windows 7 Ultimate
 
 

Hi.

That is fine with Essenbe, I will wait for him. Thanks for asking him.

I'll see how my BIOS settings looks like.

The computer has behaved ok since I asked here :-)
My System SpecsSystem Spec
19 Aug 2013   #8

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate SP1 X64 (Windows 8.1, Linux Mint, Windows XP and others in VM)
 
 

Darkhorse, sorrry for the delay. This is simply personal preference, but I don't like HW monitor for values. A lot of people really like it so, again personal preference. The voltages I see look low. ATX standards are +/- 5%. Most those voltages are below that. If you can, please go to bios and most boards have a Hardware Monitor, please give me the values you find there for the +12V, +5v , and +3.3V. Also, I've never had that CPU so am not sure about your Vcore. If you could would you download Core Temp. It is a temp monitoring program but has another improtant value it shows. The VID it shows is directly related to Vcore. The values Intel Gives are Vid ranges. Could you give me the VID from Core temp? According to Intel the VID should be between 0.85V – 1.3625V.
My System SpecsSystem Spec
20 Aug 2013   #9

Windows 7 Ultimate
 
 

@essenbe

No problem with the delay. For me this is just a hobby :-)

I took a photo of the BIOS, and also installed the Core Temp.


Both picts are shown here.


Attached Thumbnails
Computer restart unmotivated.-bios.jpg  
Attached Images
 
My System SpecsSystem Spec
20 Aug 2013   #10

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate SP1 X64 (Windows 8.1, Linux Mint, Windows XP and others in VM)
 
 

In BIOS your 5V is good, your 3.3V is barely within ATX Standards but is OK, it didn't show your +12V for some reason. Vcore looks ok. From the values I've seen in bios and HW Monitor, I would say your PSU is borderline. Seasonic is an excellent brand, how old is it? I may suggest going into bios and look at your ram, timings, frequency and voltage and your sata controller mode (IDE,AHCI) then set optimized defaults, set your sata controller the way it is right now and set your ram timings, voltage and frequency to manufacturers specs, which should be the way they are right now, but check. Sometimes setting everything back to default levels solves problems that would tke forever to run down. Also, if you have any issues with bios not holding the values you set or your clock being off, replace the CMOS battery. They are quite cheap and pretty common. I imagine you know, but if you replace your CMOS battery, all bios settings will be lost. You will have to go back in and set defaults then completely reset bios, including date and time.
My System SpecsSystem Spec
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 Computer restart unmotivated.




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