Computer Help forum

General discussion

Computer powers on then powers off immediately

by Scheppmann / July 19, 2008 2:31 AM PDT

Hey all. I posted about a month ago about my computer failing to POST after initially restarting itself several times. I eventually concluded it must've been my motherboard after testing most of my parts, and RMA'd it as it was still under warranty. I just received my motherboard back a couple days ago. It appeared to have a part replaced on it, so I assume something was changed or fixed, as they did not yell at me for nothing being wrong with it. I've run into some problems after putting it all back together though. When I power on my pc, it will make a familiar clicking noise as if it were about to POST, then shuts off immediately before it can. If I attempted to repower it too many times too quickly, the fans would continue to run but there would be no click/POST. Confused, I double checked if everything was placed correctly, then decided to use my reset switch pin in the power spot. Surprisingly, the computer started up fine, no errors or anything. Excited, I shut the computer down and ran it upstairs to set up in my room, and again, it powered up just fine. I was able to run my programs and games for the rest of the night. This morning I go to power my computer up again, but the same issue returned: it would power off immediately after turning on and producing that click.

I thought the power switch on the case may have been faulty, but now I'm not so certain. I swapped them back and forth a couple times to no avail. I'm beginning to suspect it may be my PSU, which is different than my original. My friend had blown his up in the process of putting his computer back together after helping me test some of my components before I sent out my motherboard, so I gave him mine which powered his computer fine.

I had picked up an Antec Truepower Trio 550w ( as opposed to my original Antec Truepower 2.0, which was also 550w I believe.I picked it up on sale, and it was packaged suspiciously at Fry's; would the PSU be a likely culprit here? I used this new PSU to attempt to turn my PC on before I sent out my motherboard, and it seemed to do the same thing of shutting the computer off immediately. This was a new symptom I did not have with my old PSU.

Any help or ideas would be greatly appreciated. Thanks.

I'm running Windows XP SP2 on a Gigabyte GA-M55SLI-S4 motherboard, AMD Athlon 64 X2 4200+ dual-core processor, EVGA GeForce 7600GT Video Card, and 2gb of RAM I'm running Windows XP SP2 on a Gigabyte GA-M55SLI-S4 motherboard, AMD Athlon 64 X2 4200+ dual-core processor, EVGA GeForce 7600GT Video Card, and 2gb of Corsair DDR2 ram.

Post a reply
Discussion is locked
You are posting a reply to: Computer powers on then powers off immediately
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Computer powers on then powers off immediately
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Popular Forums
icon
Computer Help 49,613 discussions
icon
Computer Newbies 10,349 discussions
icon
Laptops 19,436 discussions
icon
Security 30,426 discussions
icon
TVs & Home Theaters 20,308 discussions
icon
Windows 10 360 discussions
icon
Phones 15,802 discussions
icon
Windows 7 7,351 discussions
icon
Networking & Wireless 14,641 discussions

Smartphone tip

Hoarding photos on your phone?

Those picture are hogging memory and could be slowing down your phone.