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No signal pc turns on fan operates, dvd draw opens and closes, but the monitor gives the message no signal. All I have done is take out the memory card to take the details in order to upgrade the memory then put it back in. checked all contections a couple of times still no signal Thanks Denyse

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  • Denyse Rodwell
    Denyse Rodwell Nov 16, 2008

    I really appreciate your ideas, thanks everyone I will give them all a try, I will let you know if any of them worked, I have a feeling I may have damaged the card I have reinserted it a coulpe of times to make sure I have it in correctly. When I phoned medion they said it was a hardwear fault, would that happen just removing the memory card? They also said the grafic card might have gone down. what do you think?



    Thanks Denyse

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Was ur desktop running well before removing the memory card?
if yes then please clean the memory card with eraser or alcohol.
you can also check the cmos battery if it is working or no?

Posted on Nov 16, 2008

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Make sure your memory bar is fixed back in place properly, this is the most common and probable cause.

if it is, then you have likely damaged it while taking it off or slotting it back in place

Posted on Nov 16, 2008

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Does it beep? Try removing memory card to see if it beeps when you switch it on with no memory card in. If it does then re-insert memory card. Make sure it is pushed down really hard and side clips are locked in place. Is it in correct socket and correct way round?
If it all looks OK then you may have damaged it with static electricity when you took it out.
In future, whenever you go to remove a PC component always touch the PC chassis first just before touching any component. Same for when you refit - always touch PC chassis first before fitting component. You must discharge static from your body before touching any component.

Posted on Nov 16, 2008

  • Steve Si
    Steve Si Nov 17, 2008

    On any computer I have known, if you remove the memory card and switch it on it should beep.

    If it does not beep then the CPU is not running.

    Are you sure you did not touch the CPU (processor) at all? Are there any LEDs (lights) on the mainboard that come on when you switch it on?

    Is the CPU fan going round? Does the hard disk LED flash as if it is booting to Windows?

    Check that all PCI cards are fully inserted. Did you accidentally pull out a lead somewhere or move any of the cables connecting to the mainboard?

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1 Answer

Dell inspiron 530 desktop won't boot, fan is running, no signal on monitor


It sounds like either your monitor or video card inside the computer is bad.

If the monitor is showing the "No Input Signal" message then the video card inside the computer is bad. The monitor is ok otherwise it would not be able to display the No Input Signal message.

When you plug in the power cord is there any lights whatsoever on the laptop, where the plug goes in or on the AC Adapter of the power cord?

When you press the power button do you hear fans running, hard drive spinning, lights on the computer, hear any beeps or lights constantly blinking, hear the DvD/CD drive click and the light on the drawer of the DvD/CD turn on for a second or two? If so the computer is trying to boot or may have booted, but the screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with the laptop and why it is not booting. Most times it's a motherboard issue when you hear beeps or blinking lights continuous. Most times the problem is with the memory or Video Card. Count the Blinking Lights or Beeps and take note of their pattern (1 Long or 1 Long followed by 2 Short).

Maybe you have a Static Charge Buildup. Remove the Power Cord, then Press and Hold the power button for 30 seconds. After 30 seconds plug the power cord back in and hit the power button to see if it boots.



Maybe your memory is bad or the memory slot is bad.

Remove the Power Cord, Open the Case and remove one of the memory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x on it with an ink pen. If it fails to boot then move the chip to the next memory slot and try rebooting. If it fails take the chip out and set it aside, then put the other chip in and try booting it in both slots. If it boots, just to verify that the chip set aside is bad, mark an x on it and put it into the open memory chip slot and try booting.

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1 Answer

When I turn my computer on, my monitor displays a message of 'vga signal, no vga input signal' and 'dvi signal, no dvi input signal' and 'monitor going to sleep'. My cables are...


The symptoms you described is common in fault mobo or VGA card.But VGA doesn,t turn bad so easy.I suggest to change your mobo first.

If you need more help post back!
Thumbs and testimonial are welcome!

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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.

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1 Answer

Hp pavillion 533w wont boot up green light on front comes on but thats it no fans coming on either


Hi ,

If the green light comes on on the front panel then it means the fan is spinning so what u can do is a self test for the monitor.Disconnect the vga cable from the back panel of the computer tower and then check if there is a message displayed on the monitor that should say check video signal or no inoput signal ,if there is no such message displayed then it means the monitor is a fault .If not then reset the memory card and then check .U can also run a test for the motherboard to do this u will have to remove the memory card and then turn the computer on if u hear long beeping noise it means the motherboard is fine .If u dont hear any sound then the mother board needs to be repaired or replaced...

all the best

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1 Answer

When I turn on my pc 170l this message appears on


For that first open cpu cabinet then reattach the RAM memory.
Pull cmos cell from motherboard for 10 minutes.
Make sure motherboard is not ground with cabinet.
Remove pci cards from motherboard if any .
Reattach vga card if installed.
reattach processor and its fan.
Then when you power up the computer press F8 key then enter in enable vga mode then go to display property and set screen resolution to 1024*768 then apply and ok.
Let me know if you need further assistance.
Thanks for using FixYa.

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1 Answer

Upon booting, fans whirl and I can hear HDD


Sounds like your graphic card is not working. Try replacing that. Check and make sure you have the cable plugged into the right port in your graphics card.

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1 Answer

Monitor is blank


No.. If this is a video adapter issue, you'll still be having a blank screen and not 'check cable' signal. This might be some internal issue with your monitor. You don't you try connecting it to your laptop (if you have) or your friends' comp. And open the CPU cover and see if the graphics card is proper by giving it a through look. Look if the graphics card fan spins. If it doesn't have a fan, switch off the pc. open the cover remove the gcard from its port carefully and then inspect if for any burnout of loose parts.

If your gcard is fine, i suggest you give your monitor for service..

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1 Answer

Computer randomly fails to boot


how many video cards do you have installed?

Nov 14, 2008 | E-Machines eMachines Desktop PC

3 Answers

Computer video went out while in the middle of something. Tried to restart- hard drive makes proper sounds but still no signal. Checked to make sure all cables were still in, turned monitor on and off....


pull out the memory modules and power up the pc. It should make a series of beeping sound, indicating the motherboard as operational, and it could be a case of defective memory. Otherwise, I would say the board is defective.

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