Computer Help forum

General discussion

pc will not switch off, and monitor shows no input signal

by Loustry / January 16, 2012 2:10 AM PST

Hp Pavillion media center M8300f desktop w/ vista system. Pc will not turn off, and no signal to monitor. Graphic card is integrated.What is solution. Can another card be used to overcome the problem. Thank you and have a great day.

Discussion is locked
You are posting a reply to: pc will not switch off, and monitor shows no input signal
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: pc will not switch off, and monitor shows no input signal
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.
Collapse -
by MarkFlax Forum moderator / January 16, 2012 4:26 AM PST

Hi Loustry, can you tell us more?

The PC will not turn off and no signal to the monitor.

If the PC will not turn off does that mean the PC was working properly before you tried to shut down? And did the monitor work correctly?

If so, what happened then. Please step through what you did and what you saw.

How do you know the PC has not turned off if there is no display on the monitor?


Collapse -
Monitor went dead, and pc would not switch off in normal way
by Loustry / January 16, 2012 9:24 AM PST
In reply to: Confused.

Hi Mark, and thanks for getting back so soon.
Right now, pc starts up soon as power cord is inserted, switch light goes on, but in-operative, and monitor has small dialog box stating,
no input.
input 2:hd15
go to power save.
That is all the info one can state.
Hope this helps. Have a great day. Happy

Collapse -
This seems to be two different problems
by MarkFlax Forum moderator / January 16, 2012 7:57 PM PST

PC does not turn off, and Monitor does not work.

For the monitor, no input signal means no video is coming from the PC. You might have a faulty cable or poor connection, faulty video card, faulty motherboard or faulty power supply. Try to troubleshoot first the problem:

Check the cable from the PC to the monitor are not loose. Unplug the PC and open it up. Clean out all the dust. Carefully remove and replace all the cables going to the motherboard one at a time. Do the same for the memory dimms and the video and sound cards if you have any. Plug your PC back in and try again.

But if the motherboard has gone then that's it. That needs replacing and it is a "repair job" for an expert PC repair shop. The same with a faulty power supply unit, (PSU). The video card may have failed but that shouldn't prevent the system booting up.

Since the PC doesn't turn off without unplugging the mains power, I suspect the PC is in need of repair.


Collapse -
by Loustry / January 17, 2012 4:29 AM PST

Thank you Mark for taking the time to help. Me thinks part of the mother board went for a permanent vacation. Sad

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


Help, my PC with Windows 10 won't shut down properly

Since upgrading to Windows 10 my computer won't shut down properly. I use the menu button shutdown and the screen goes blank, but the system does not fully shut down. The only way to get it to shut down is to hold the physical power button down till it shuts down. Any suggestions?