Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: PC turns off a few moments after turning on

01 Dec 2011   #1

Windows 7 Ultimate x64
PC turns off a few moments after turning on

Hi, every morning when I turn my PC on it turns itself off after about 5 seconds. Once it's off, pressing the on button does nothing. I have to flick the PSU switch at the back off and on again for the front button to turn the computer on again. It'll then turn itself off again after a few seconds and I have to repeat the process. Eventually it decides to stay on and it boots up fine.

Any ideas what this might be? I'm worried that one day it just won't turn on at all. One thing that might be worth mentioning is that if we've had a powercut in the house at all, even when my computer is switched off, when power resumes and I turn my computer back on, it tells me there's a CMOS checksum error and my BIOS settings are restored to default, as well as the time in Windows being set to 2003. How can this happen when my computer wasn't even on at the time of the powercut? No idea!

Any help would be great, sorry for the long post.

My System SpecsSystem Spec

01 Dec 2011   #2

Windows 7 Ultimate x64, & Mac OS X 10.9.2

Its your power supply about to die infact as your reading this its probably midway to hell

Basically what's happening is its capacitors are not holding enough charge.

My System SpecsSystem Spec
08 Jan 2012   #3

Windows 7 Ultimate x64

Last night we had a powercut just as I was about to shutdown my computer and go to bed. The morning after I turned my computer on and it came on first time. Weird. When I shut it down the normal way the next time I turn it on it takes about five attempts as described in the first post.
My System SpecsSystem Spec

08 Jan 2012   #4

Windows 7 Ultimate x64, & Mac OS X 10.9.2

still a faulty psu im afraid
My System SpecsSystem Spec

 PC turns off a few moments after turning on

Thread Tools

Similar help and support threads for2: PC turns off a few moments after turning on
Thread Forum
When turning off computer & turning it back on again screen is blank General Discussion
Keep getting BSOD at random moments BSOD Help and Support
Got a few spare moments? Chillout Room
computer turns on for a few seconds then turns off General Discussion
Final Moments of 2011 Chillout Room
Turning off windows firewall turns on file sharing & network discovery Network & Sharing
Microsoft Turns 35: Best, Worst, Most Notable Moments General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 08:16 AM.
Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33