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my comp randomly rebooting itself (any help greatly appreciated)

post #1 of 6
Thread Starter 
Hi guys,

First of all, what a nice community you've got here. Just recently found out about this and I will be checking these forums out in the future for sure.

I've got this really annoying problem with my computer. Maybe about 50% of the time I turn on or reboot my computer, it will randomly reboot itself for no apparent reason whatsoever. It usually happens almost immediately after signing in to Windows or shortly after that. Occasionally it happens a little bit later. If it's going to happen at all, it's happening pretty soon after the restart. Because this problem is so annoying, I've had my computer running 10 days straight now without rebooting with no problems. So what can go wrong during the bootup about 50% of the time, that causes this? I would like to turn off the computer during the nights, but because of this, haven't been doing so for almost two weeks now.

I had this system running flawlessly a while ago. This problem started after I switched from Vista to 7 a while ago and replaced my GTX 8800 with GTX 470. I did those changes simultaneously and can't really tell which caused this. Can't test if it's the graphics card, because I don't have the old one anymore.

How to diagnose this? I really appreciate any help guys.

Edit: Forgot to mention that everything is running at stock at the moment and temps are fine

Specs:

Windows 7 64-bit
Asus Blitz Formula Special Edition
EVGA GTX 470
Q6600
2x1 GB Mushkin XP2 8500
1TB Western Digital Black
Corsair HX620
Edited by oskari1 - 10/21/11 at 5:24pm
post #2 of 6
So is it an immediate reset? or is it a graceful shutdown. Graceful being you log in, and there's a Windows msg logging you out and restarting.

Also is this a fresh install of Windows 7? And which power supply are you using? How old is this power supply?
    
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CPUMotherboardGraphicsRAM
i7-2600 (non-K) Asrock Z68 Extreme 3 Gen 3 2x EVGA GTX 580 G.SKILL Ripjaws Series 8GB 
Hard DriveCoolingOSKeyboard
Crucial 128GB M4 Rasa RX360 Windows 7 Ultimate x64 Logitech G15 
PowerCaseMouse
OCZ ZX Series 1000W HAF X Logitech G500 
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post #3 of 6
Thread Starter 
It's an abrupt shutdown. The screen turns black and the system starts rebooting and asks if you want to run in safe mode because it was shut down unexpectedly. It's a fresh install of Windows 7, done multiple times with no luck. And the PSU is Corsair HX620, which is supposed to be very good. Maybe 3 or 4 years old, as is the rest of the rig with the exception of GTX 470. As mentioned in the original post, the system worked fine until I installed Win 7 and GTX 470, so I doubt that the PSU is at fault.
post #4 of 6
It could be something shorting out in your computer that's causing these random restarts.

I would also advise checking to see if your power button or reset button cable is fully connected to the mobo and not loose. I had the same problem a while back and it turned out my reset button cable wasn't fully plugged into the mobo so it was causing it to short.
     
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Intel Core i7-4870HQ @ 2.5 GHz (Turbo @ 3.7 GHz) Apple Logic Board Nvidia GeForce GT 750M 2GB 16 GB 1600 MHz DDR3 
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CPUMotherboardGraphicsRAM
Intel Core i7-4870HQ @ 2.5 GHz (Turbo @ 3.7 GHz) Apple Logic Board Nvidia GeForce GT 750M 2GB 16 GB 1600 MHz DDR3 
Hard DriveOSMonitorKeyboard
APPLE SSD SM0512F 500GB macOS Sierra 15" Retina Display (2880 x 1800) Full-size backlit keyboard with 78 (U.S.) keys 
PowerCaseMouseAudio
85W Magsafe 2 Precision Aluminum Unibody Multi-Touch Trackpad Focusrite Scarlett 2i4 2nd Gen 
CPUGraphicsRAMHard Drive
Intel Core i5-3317U @ 1.7GHz (Turbo @ 2.6 GHz) Intel HD Graphics 4000 4 GB 1600 MHz DDR3L SDRAM APPLE SSD TS128E 
OSMonitorKeyboardPower
macOS Sierra 11.6" LCD/LED Backlit IPS Display (1366 x 768) Full-size backlit keyboard with 78 (U.S.) keys 85W Magsafe 2 
CaseMouse
Precision Aluminum Unibody Multi-Touch Trackpad 
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post #5 of 6
Thread Starter 
The cables have been checked, and they are ok. Don't you guys find it weird that if it reboots itself, it does it pretty soon after restart or it works fine for days. Seems to me that occasionally something goes wrong in the bootup process and it restarts, and other times I can run the machine several weeks without it rebooting once. So fundamentally everything must be fine, right?
post #6 of 6
To be safe with your hardware swap PSUs. I have had two fail killing my entire rig. Afterwards if it still doing the samething. Boot into the windows recovery disk and try to fix any errors.
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Overclock.net › Forums › Software, Programming and Coding › Operating Systems › Windows › my comp randomly rebooting itself (any help greatly appreciated)