HolidayBuyer's Guide

Computer Help forum

Resolved Question

Computer won't turn on

by annej96 / October 6, 2014 7:45 AM PDT

Any help or suggestions would be greatly appreciated: I have a desktop computer that was working fine the other night but this morning when I tried turning it on, nothing happened. I unplugged everything but the power chord and the monitor- still nothing. I took out the power chord, waited several seconds and then plugged it back in, and when I press the power button it came on for a second the turned off. There is a little green indicator light showing that the system is receiving power.

The computer is a Windows Vista Home and Premium OEMAct. The tower has a Compaq logo, the model number is CQ511OF. It is an older computer I'd guess maybe 7ish years old.

I'm hopeful it might be the power button, but I know it may also be the motherboard.

Thank you for your time

annej96 has chosen the best answer to their question. View answer
Discussion is locked
You are posting a reply to: Computer won't turn on
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 won't turn on
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.

All Answers

Best Answer chosen by annej96

Collapse -
Computer issue
by pgc3 / October 8, 2014 11:39 PM PDT
In reply to: Computer won't turn on

First guess, PSU failure. HP/Compaq and many other out of the box computers have very basic (pretty whimpy) power supplies, they do fail. If you are not tech savvy, take it to a shop and have it tested. PSU replacement is not a major job and a basic supply is not that expensive. If it is a supply, the whole job should take no more than 15 minutes.

Collapse -
At that age.
by Dafydd Forum moderator / October 6, 2014 8:03 AM PDT
In reply to: Computer won't turn on

I'd do the canned air and thermal paste before trying to troubleshoot.


Collapse -
turn on
by shimply / October 8, 2014 6:22 PM PDT
In reply to: Computer won't turn on

Well, you would have to look out once more to the power button ! press it firmly

Collapse -
Re: Computer won't turn on
by Erin93 / October 8, 2014 11:19 PM PDT
In reply to: Computer won't turn on

I would try unplugging it for a longer period of time. While it's uplugged, try cleaning it up really well (canned air...make sure all dust is out). If nothing else works, you may have to bring it in to have it serviced. Here's hoping it's just the power button. If you haven't noticed any other problems with it at all, it's a possibility.

Popular Forums
Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Cameras that make great holiday gifts

Let them start the new year with a step up in photo and video quality from a phone.