Question about HP Pavilion 754n PC Desktop

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NO POWER YES, ALL PLUGGED IN. TOWER HAS POWER COMING ON BUT NO SIGNAL COMING INTO MONITOR OR KEYBOARD. NO SCREEN OR KEY BOARD ON.

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Hmm. Well, that doesn't make sense, as your monitor should power on even if isn't hooked to the tower. I'm out of ideas.

Posted on May 06, 2008

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Tower turns on but screen says no signal?


Check to be sure your monitor connection needles are seated properly. Is mouse wireless or connected to back of tower?

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MY HP TOWER TURNS ON AND THE FAN RUNS, BUT DOES NOT SEND A SIGNAL TO THE KEYBOARD OR MONITOR. BOTH THE KEYBOARD AND MONITOR HAVE POWER AND ARE PLUGGED INTO THE TOWER. ON OFF BUTTON IS ILLUMINATED ON THE...


If the keyboard and is USB, you can try another USB port. For the monitor not getting display, I would try either a different monitor or a video card. Otherwise, the motherboard could be the problem.

Oct 02, 2010 | Computers & Internet

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My monitor has kicked into sleep mode and won't "wake up".


Unplug all the Cables from Compaq Presario 5103 CL and leave the Keyboard, mouse and monitor cable pluged in.

Now make sure the power cable of the monitor should be pluged in and the power cable of the tower should be pluged in.

Now to check if the montor is fine just unplug the video cable only which will show no input signal on the screen. If it shows this signal the monitor is fine. Plug back in the video cable.

If the monitor is going to sleep mode it might be possible that the old computer ( Compaq Presario 5103 CL ) is in stand by mode. hit any key on the keyboard and it should come back .

If it is not in the stand by mode then do one thing. Check the same monitor with the new computer. If it is working. Perfect ..!

Do one thing now ..!

Unplug all the cables from your old system and then press the power button for 30 sec and let it go. Now plug the keyboard, mouse and the monitor try again.
If it works Perfect. If not ..!

Then you need to open the tower and check on the processor FAN is it running..? If its not running you will not get the display as the fan is responsible for the display on the screen. Otherwise...!

Check the Tower possibly the Tower is not getting the power.

Try these steps and let me know If it works

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Check the pins in the monitor that plugs up to the back of the computer and see if they are bent.

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I have a dell optiplex sx280 computer and monitor that has lapsed into ''power save mode'' and I have been unable to ''awaken'' it (I'm not sure which is ''asleep'': the monitor or computer!) from sleep. I...


How's the status light of your computer monitor? is it blinking amber? and the status light of your computer tower's power button? blinking amber as well or solid green or no light at all?

1. Disconnect all the connection at the back of your computer tower
2. Press the power button of the computer tower for 15 seconds
3. Reconnect the power button and the monitor cable at the back of your computer tower and turn on the computer (if it turned on that means that one of the device plugged at the back of your computer tower is faulty)
4. If still the same problem, open up your computer tower.
5. Reseat the video card, Reseat Hard drive, Reseat Memory, Reseat CPU, Reseat power cord coming from the CPU to your computer (doing all things one-by-one to pin-point the root cause of the issue)

If none of the troubleshooting steps fixed the problem, possible that the power supply is faulty and if the power supply is faulty sometimes it goes with the motherboard.

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Computer Tower


Have you try to run PC in safe mode?
Please reboot your computer in Safe Mode by doing the following:
To go into Safe mode -- Press F8 key as soon as the PC restarts.
(You will have do again if PC starts in normal mode.)
On the black screen >>> Safe Mode With Networking(for internet Access).
On the login screen, please select Administrator as a USER to login.
Press 'YES' when you get the safe mode warning.

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Blank screen


When you say "When I turn on the computer the monitor acts like it is getting no power", do you mean the light on monitor doesn't come on or it does and it states it has "No Signal"? If it says no signal then it is receiving power just no signal from computer. What kind of connection is it? Digital(white) or analog(blue)? Is the keyboard wireless or is it PS/2?

If the keyboard isn't wireless and you're plugging the monitor in correctly I would say it's a power supply issue. Try changing the outlet you're using and/or bypass the surge protector to plug directly into wall.

Jun 24, 2008 | Compaq Presario SR1103WM-B (PC183B#ABA) PC...

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No mouse,no keyboard, and no monitor?


try to connect it with other keyboard,mouse and monitor....if they will run, the keyboard,mouse and monitor may be defective or damaged..but if they did not run properly,,
maybe somethings wrong wit your unit...
try to connect it first and see whats the result...
please tell me what are the results...
you may post it here...



chaw

Jun 17, 2008 | Computers & Internet

1 Answer

No power


Have you plugged both of these into the back of the tower? Ensure the keyboard is in the appropriate plug-in, and the monitor's power cord is plugged into both the wall and the monitor itself.

May 03, 2008 | HP Pavilion 754n PC Desktop

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