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Windows 7: Computer randomly rebooting, non heat related.

29 Jul 2014   #1
Phantasmagoria

64bit windows 7
 
 
Computer randomly rebooting, non heat related.

Hello 7forums, I am having an issue that has started occurring in the last week, after I began installing all of the windows 7 updates (Recently re-installed windows)

Now my computer is randomly rebooting, no warning signs, no BSOD, nothing.

My fans and CPU are at about 30-40 degrees when this occurs and ram is under very little stress, it mostly occurs soon after powering on my system, for example it randomly rebooted 3 times 1 hour ago, about 5 minutes between each one and has not rebooted since.

I have no idea what's going on, I don't have a virus either.

Any help would be much appreciated, thank you.


My System SpecsSystem Spec
.
30 Jul 2014   #2
Phantasmagoria

64bit windows 7
 
 

Could this be due to my PSU? Another issue I've been having recently before this started was my graphics cards drivers crashing, and now this..
My System SpecsSystem Spec
30 Jul 2014   #3
windude99

Windows 7 Professional x64 Service Pack 1
 
 

A power supply issue would be a likely cause for this. Do you or a friend have a power supply you could use to test your system?
My System SpecsSystem Spec
.

30 Jul 2014   #4
Phantasmagoria

64bit windows 7
 
 

Sadly, no and all the other PSUs in the house are too small, should I just go out on a limb and buy a new one?
My System SpecsSystem Spec
30 Jul 2014   #5
windude99

Windows 7 Professional x64 Service Pack 1
 
 

Have you checked for any BIOS updates for your motherboard?
My System SpecsSystem Spec
30 Jul 2014   #6
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Could you add to your system specs the brand and information of your power supply.

When you computer reboots all by itself does it post any messages?
My System SpecsSystem Spec
31 Jul 2014   #7
Phantasmagoria

64bit windows 7
 
 

I have checked, no updates have been released in a long time.

current PSU is: XFX Core Edition PRO750W (P1-750S-NLB9) 750W ATX12V 2.2 & ESP12V 2.91 SLI CrossFire 80 PLUS BRONZE Certified Active PFC Power Supply - Newegg.com
added to system specs too.
My System SpecsSystem Spec
31 Jul 2014   #8
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Thank you for adding the info to your specs.

Could you answer the other question in my previous post?
My System SpecsSystem Spec
31 Jul 2014   #9
Phantasmagoria

64bit windows 7
 
 

Ah sorry, forgot about it as I had to take off the side of my case to read the psu name.

There's nothing, no BSOD no warning no message, screens go blank, audio stutters, then nothing. Fans will turn off, then on in about 30 seconds, and system will start up as usual, it will prompt asking if I wish to boot in safe mode or not and then it starts up as normal.
My System SpecsSystem Spec
31 Jul 2014   #10
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Okay that helps.

Normally this is caused by a power loss.
I would first check ALL cable connection for damage of any kind and for proper seating.
If you are using a surge protector and anything else between the power supply and the wall socket try using the computer without them.
Also remove the plugs from the wall socket and look for signs of problems with the wall socket. If their are burnt tracks or the wall plate is hot you have a problem there.
What this is doing is trying to isolate the problem.

I have seen things as simple as the power button on the case sticking to a motherboard, power supply ect cause this problem.
Once all connections are known to be good it's usually a power supply.

***Another question or two.
When you do a normal shut down and then startup does that process work normal?

Have you done any bios flashing?
My System SpecsSystem Spec
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 Computer randomly rebooting, non heat related.




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