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Windows 7: My PC flashes on and off rapidly when power is pressed


13 Jan 2011   #1

Windows 7 Home Premium x64
 
 
My PC flashes on and off rapidly when power is pressed

Hi

Starting Saturday , whenever I press my power button to turn on my computer it rapidly turns on and off. The LED lights on my fans are about half the brightness they regularly are. As well the lights from my audio card flash on and off. This leads me to believe its an issue with my power supply. I did some searching and came across THIS thread but unlike in that particular case, I can get my PC to turn on and run perfectly smooth after about 3-7 trys of flicking the switch on my power bar and trying to boot my PC. Having this though makes me think it may be an issue with my motherboard. I have tried checking the connections inside my pc, a different wall socket, and a different power bar.

Here is a video I managed to take with my iPod
Code:
http://www.youtube.com/watch?v=BrfKjhCMEnU
Thank you for any help or suggestions

My System SpecsSystem Spec
.

14 Jan 2011   #2

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1
 
 

Hi! Shimmer93, welcome to 7F

The exact same symptoms I was having on my XP box, It took a new PSU to correct the problem.

If you don't have a couple of high powered cards installed you can get away with one that is rated for 500w. $45USD

If you do, go up to 700 or 800w. At the least match what you already have.
My System SpecsSystem Spec
14 Jan 2011   #3

Windows 7 Ultimate (32 bit)
 
 

Quote   Quote: Originally Posted by Anak View Post
Hi! Shimmer93, welcome to 7F

The exact same symptoms I was having on my XP box, It took a new PSU to correct the problem.

Good Call. I would also agree that you are getting low volatge from your Ppower supply thru your motherboard.
If it continues you can do a lot of damage to your other hardware.
My System SpecsSystem Spec
.


14 Jan 2011   #4

Microsoft Windows 7 Home Premium 64-bit 7600
 
 

here y'go ive embedded it for you
My System SpecsSystem Spec
14 Jan 2011   #5

Windows 7 Home Premium x64
 
 

Thanks for the help everyone. Ill try getting a new power supply but it may take a few days to get one. If i remove a few components from my PC (example: remove sound card and use on-board sound) may that eliminate my problem or make my damages less? As well if when i can get my PC to boot, should i just keep it on since i seem to not be running into any issues once i can get it running.

By the way my Current power supply is 700-Watt and my components should be in my profile from entering them upon registration and I'm planning on upgrading to a Core i7 and a better video card soon if that's any use to you guys.

Again thank you for all the help
My System SpecsSystem Spec
14 Jan 2011   #6

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1
 
 

Quote   Quote: Originally Posted by Shimmer93 View Post
Thanks for the help everyone. Ill try getting a new power supply but it may take a few days to get one. If i remove a few components from my PC (example: remove sound card and use on-board sound) may that eliminate my problem or make my damages less? As well if when i can get my PC to boot, should i just keep it on since i seem to not be running into any issues once i can get it running.
It will not eliminate the problem The PSU has already started to head South

You could leave it on, but what happens if, when you come back to it the machine is dark which means the PSU has died.

The first thing you have to overcome is the fact that the OS had been shut-down improperly, and you will have to get that straightened out.

Quote   Quote: Originally Posted by Shimmer93 View Post
By the way my Current power supply is 700-Watt and my components should be in my profile from entering them upon registration and I'm planning on upgrading to a Core i7 and a better video card soon if that's any use to you guys.

Again thank you for all the help
Sounds like you will have to upgrade to a higher output, but that depends on exactly what parts you will be installing for the upgrade.
That is a call only you can make.

Here's a couple, See:
Newegg.com - Recommended Power Supply Calculator.

Free and pay:
eXtreme Power Supply Calculator v2.5

Put PC power calculators into your search box, and see what comes up.
My System SpecsSystem Spec
14 Jan 2011   #7

Windows 7 Home Premium x64
 
 

Thanks for all the help Anak. I have just ordered myself a Sparkle 750W power supply. I will be back when i get it to write about my results
My System SpecsSystem Spec
15 Jan 2011   #8

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1
 
 

Quote   Quote: Originally Posted by Shimmer93 View Post
Thanks for all the help Anak. I have just ordered myself a Sparkle 750W power supply.
Your welcome Shimmer, That's good news! She looks like a beauty.

I don't see any big maker names in your systemspecs so I get the feeling you built this yourself? So you should know your way around, and how to act once inside the box.

Just take your time if you think about it you may want to take some pix to help you remember how it looked before you start taking things apart. especially the plugs.

While your waiting you may want to familiarize yourself on how the old one's coming out, and the new one'll go in.
Plug "Installing a PSU" into your search box.

You did check to make sure the plugs matched, didn't you?

Quote   Quote: Originally Posted by Shimmer93 View Post
I will be back when i get it to write about my results
You better or we'll have to send the Tron Police after you...

May the Good Luck be with you!

Steve
My System SpecsSystem Spec
22 Jan 2011   #9

Windows 7 Home Premium x64
 
 

I just installed my new power supply and my PC is booting perfectly now. This can be marked as solved.

Thanks again everyone
My System SpecsSystem Spec
22 Jan 2011   #10

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1
 
 

Quote   Quote: Originally Posted by Shimmer93 View Post
I just installed my new power supply and my PC is booting perfectly now. This can be marked as solved.

Thanks again everyone
That is good news Shimmer!
I tried to think of anything to do or watch out for after a PSU install, and the only thing I could think of was to watch for any signs of overheating.

To officially mark this solved you have to go to the red triangle in the upper right corner, and ask one of the Admins or Mods to have it marked solved.
My System SpecsSystem Spec
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 My PC flashes on and off rapidly when power is pressed




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