Question about HP Vectra VL400 PC Desktop

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CPU is locked!

My cpu has the locked light on when i turn it on and it won't turn on! The screen still says no signal!

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Remove the battery from the unit and allow it sit for a couple of minutes then plug in the unit to power and see if it somes up. Removing battery and power often unlocks a unit. make sure hibernation is not causing problem. Once it comes up successfully, power off and reinstall the battery, try again. Some times a failed/failing battery can lock things

Posted on Jan 07, 2009

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I have an e-machine and when I turn it on all it does is blow air. It won't show up on the screen, the fan just keeps blowing! Any ideas?


Check the color of the power light on the monitor (screen). If it is orange, that means you're getting no signal from the CPU to the monitor. If that's the case, check the signal cable going from the CPU to the monitor to make sure it hasn't been disconnected.

Dec 14, 2012 | PC Desktops

1 Answer

Computer won't do anything, keyboard does not light up, screen is blank


So there is not so much as a BIOS message on screen? Any beeps?
If there is no life at all, you have a CPU/motherboard failure. This may be direct or indirect (e.g. no power to MoBo). Check your connections.
Otherwise, your boot device may not be operating. This is usually a dead or disconnected HDD. Check that it is plugged in. Does it get warm? Can you feel any vibrations from it? It should spin even if your cpu is dead but MoBo is alive.

Oct 26, 2012 | HP Compaq Presario SR2038X PC Desktop

1 Answer

No signal displayed


hi,check the CPU of your computer if it is booting properly.you can try to push the caps lock of the key board pressing the keyboard once the LED light indicator lights up then press again the light will turn off .This means that the CPU boots up and functioning properly.Check the data cable connecting the CPU and the monitor there must be a broken line there you can replace the cable or you can re insert the cable a loose connection can cause the problem.IF all are good and still same problem try to re insert the video card from the main board make sure to turn of the power before removing the video card...try this solution and post back if nothing happens after doing these solutions..good luck!

Apr 02, 2012 | Intel PC Desktops

1 Answer

I have an hp pavillion a6500f that soon as it is turned on has a constant alarm and is not sending a signal to the monitor. Screen says no signal and then remains black.


If you mean a constant beeping, open the case and see if the CPU fan is running, check also that the heatsink is firmly attached to the board, this noise usually points to a n overheating CPU, if you get no activity on screen,it is because there is no signal being sent to the monitor. Do not operate the computer until you have checked the fan is working, you need to establish if there is power getting to the fan by testing with a multimeter on the motherboard cpu fan pins. If you are getting power, replace the fan, worthwhile removing and regreasing the CPU and making sure it is firmly in place.

If there still is no signal, replace CPU, but also try a different graphics card (faulty video will give 9 beeps).

After that, check the ram is firmly in place.

Jul 28, 2011 | HP PC Desktops

1 Answer

When i turn my computer on the screen says no signal what do i do


it means that the monitor is not receiving any signal from the cpu, check the cable that goes from the tower (cpu) to the monitor

Jun 06, 2011 | Dell Dimension 2400 PC Desktop

2 Answers

Cpu no up, monitor shows


could be the whole pc is fried :(

Jul 10, 2009 | PC Desktops

2 Answers

Monitor Turns Black


Hi

you have cold solder to PCB and you have to resolder the Cold solder to PCB

Thanks!

Jul 03, 2009 | PC Desktops

2 Answers

Monitor going to sleep


turn off the hibernation mode if it is turned on.

Jun 15, 2009 | Dell Dimension 3000 PC Desktop

1 Answer

I have a shap lcd computer monitor and when i plug it into my computer and turn the power on, the little green power light comes on, screens back. and after 5-10 seconds the light turns orange and blinks...


It could be your monitor is fine. It simply goes to a cycle when its turned on and does not detect any signal coming from your CPU, it simply goes on standby mode (hence the darker image and orange/blinking light.) have you checked the computer (CPU) part?

Dec 04, 2008 | PC Desktops

1 Answer

I have a pavillon a6421 uk hp computer when i turn it on the monitor comes up with no vga signal (i have changed the graphics card and it is still the same) have done all the trouble shooting options...


Hi

First Check the power cable of ur monitor whether power is coming or not..

Then remove signal cable (which is connect the cpu) and then switch one the power, check whether any msg is coming in screen.(like no signal or no connection) if it comes means u want to check the cpu or else their is problem in ur monitor..

Connect the another monitor with ur cpu.Whether ur cpu is working properly..

Sep 19, 2008 | PC Desktops

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