Power supply problem?

jahuteskye · 10-27-2009, 11:40 AM

This morning when I turned on my computer it informed me that it did not shut down properly the night before. I told it to start normally into vista 64 ult.

As it was starting the OS, the computer shut off completely. So, I pressed the power button to bring it back online. The computer turned on for just a moment, I could hear the fans running and the case lights turned on, but it immediately shut off. Then, it turned on and off again in the same fashion (but this time, I didn't press the power button or anything - this was happening automatically). This happened one or two more times then it turned off and stayed off.

Fully unnerved by this point, I tried once more to press the power button. There was no response/lights/fans or anything. I opened up my case and checked to make sure everything was plugged in, then used compressed air to clean out the case. I plugged it it and tried once more. Again, it turned on and off a couple times quickly then stayed off. I then unplugged it and came here. Any ideas what's going on? I can only assume this is a power supply issue.

**linderman** · 10-27-2009, 01:08 PM

I too would start with a PSU swap

what are the full specs of your system

**Tyree** · 10-27-2009, 04:17 PM

The problem certainly sounds like a PSU issue.

Tumbleweed36 · 10-27-2009, 05:11 PM

It sure does sound like the power supply to me also, so that is the route you probably need to go.

If you are up to trying a long shot and it was shut down improperly, you might want to clear the CMOS to see if the Bios needs reset to factory settings. Since it did not have time to save Bios settings (improper shutdown), there might be bug there that a cmos clear might straighten up.

Remember, no promises and a very long shot, but worth a try since It can't harm anything.

**linderman** · 10-27-2009, 05:16 PM

Quote:

Originally Posted by Tumbleweed36

It sure does sound like the power supply to me also, so that is the route you probably need to go.

If you are up to trying a long shot and it was shut down improperly, you might want to clear the CMOS to see if the Bios needs reset to factory settings. Since it did not have time to save Bios settings (improper shutdown), there might be bug there that a cmos clear might straighten up.

Remember, no promises and a very long shot, but worth a try since It can't harm anything.

EXCELLENT ADVICE

jahuteskye · 10-28-2009, 01:29 PM

I eventually discovered that my 24-pin cable to my mobo was slightly loose, after jiggling that back into place I still couldn't get my bios to post so I reset cmos and it worked out. Thanks for your help!

Tumbleweed36 · 10-28-2009, 05:11 PM

That is great news, happy you got it going. Have a great week and don't be a stranger on the forum.

**linderman** · 10-28-2009, 07:23 PM

Quote:

Originally Posted by jahuteskye

I eventually discovered that my 24-pin cable to my mobo was slightly loose, after jiggling that back into place I still couldn't get my bios to post so I reset cmos and it worked out. Thanks for your help!

Tumbleweed hit that pitch outta the park!

happy to see you have things sorted!

10-27-2009, 11:40 AM	#1 (permalink)
jahuteskye Registered User Join Date: Oct 2009 Posts: 2 OS: Vista 64 ultimate	Power supply problem? This morning when I turned on my computer it informed me that it did not shut down properly the night before. I told it to start normally into vista 64 ult. As it was starting the OS, the computer shut off completely. So, I pressed the power button to bring it back online. The computer turned on for just a moment, I could hear the fans running and the case lights turned on, but it immediately shut off. Then, it turned on and off again in the same fashion (but this time, I didn't press the power button or anything - this was happening automatically). This happened one or two more times then it turned off and stayed off. Fully unnerved by this point, I tried once more to press the power button. There was no response/lights/fans or anything. I opened up my case and checked to make sure everything was plugged in, then used compressed air to clean out the case. I plugged it it and tried once more. Again, it turned on and off a couple times quickly then stayed off. I then unplugged it and came here. Any ideas what's going on? I can only assume this is a power supply issue.

10-27-2009, 01:08 PM	#2 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 20,442 OS: win 2000 pro / Win XP pro My System	Re: Power supply problem? I too would start with a PSU swap what are the full specs of your system __________________ I still know nothing and I respect that fact, striving to improve and, along the way, help anyone that comes from the place that I used to be! Power Supply Selection LEARN TO BACK-UP YOUR DATA FREE & EASY YouTube - Runtime Software DriveImage XML tutorial

10-27-2009, 04:17 PM	#3 (permalink)
Tyree Mentor Hardware Team Join Date: May 2009 Location: Illinois Posts: 5,810 OS: XP Pro-7RC-Mandriva My System	Re: Power supply problem? The problem certainly sounds like a PSU issue. __________________ Posting your PC specs will help us to help you quicker and more efficiently.

10-27-2009, 05:11 PM	#4 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,707 OS: XP Professional	Re: Power supply problem? It sure does sound like the power supply to me also, so that is the route you probably need to go. If you are up to trying a long shot and it was shut down improperly, you might want to clear the CMOS to see if the Bios needs reset to factory settings. Since it did not have time to save Bios settings (improper shutdown), there might be bug there that a cmos clear might straighten up. Remember, no promises and a very long shot, but worth a try since It can't harm anything. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread. Last edited by Tumbleweed36; 10-27-2009 at 07:00 PM.

10-28-2009, 01:29 PM	#6 (permalink)
jahuteskye Registered User Join Date: Oct 2009 Posts: 2 OS: Vista 64 ultimate	Re: Power supply problem? I eventually discovered that my 24-pin cable to my mobo was slightly loose, after jiggling that back into place I still couldn't get my bios to post so I reset cmos and it worked out. Thanks for your help!

10-28-2009, 05:11 PM	#7 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 19,707 OS: XP Professional	Re: Power supply problem? That is great news, happy you got it going. Have a great week and don't be a stranger on the forum. __________________ ---------- I don't receive email notifications of replies to subscribed threads. (Internet provider policy) Therefore, if I don't respond to your post within 24 hours, please send me a reminder PM and include the link to your thread.