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Power on but no display

Hi , my PC is not giving any display to the monitor , after no signal it's going to orange color state. I checked CMOS battery and RAM,data cable and monitor with other computer, every thing is fine.still i didn't understand motherboard(Zebronics) problem. before that only CMOS battery not updating date and time. but working in other's desktop. plz advise me!!!!

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  • 39 Answers

Does it say no signal? Does is beep correctly during POST(power on self test)? Usually the remedy for this is checking your vga data cable if its connected properly and if it is, check the pins, are they all looking fine? If not change the cable and try again. If the cable is attached to your screen permanently, try a different screen.

Posted on Mar 21, 2014

Testimonial: "Hi, yes it says no signal. i checked VGA cable connecting to LAPTOP and working fine. what is POST ?"

  • 2 more comments 
  • jrao2007
    jrao2007 Mar 22, 2014

    Hi, yes it says no signal. i checked VGA cable connecting to LAPTOP and working fine. what is POST ?"

  • Manford Khumalo Mar 22, 2014

    POST is the test that your computer does upon switching it on, it will make beeps depending on what will be detected. If there is a RAM failure, a specific sound is produced, if all is well again there might be a single beep, what happenens if u remove your RAM? can you hear any beeps? You must get a continous beep about a second or two long. Tell me what you have experienced when you removed your RAM

  • Manford Khumalo Mar 22, 2014

    Im trying to find out if all is well on your motherboard

  • jrao2007
    jrao2007 Mar 26, 2014

    i have to try... i will try removing it and see....

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Posted on Jan 02, 2017

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SOURCE: bios problem for A7V400-MX

On this ASUS motherboard just beside the Lithium Battery for CMOS an SMD transistor needs to replaced . Sorry I can't remember the component number as well as the legend numbersince I do not have that motherboard with me anymore , but mind you IF YOU DO NOT HAVE EXPERIENCE WORKING WITH SMD COMPONENTS DO NOT ATTEMPT TO REPLACE THE TRANSISTOR AS YOU MIGHT END UP DAMAGING NEIGHBOURING COMPONENTS AND DAMAGING THE MOBO BADLY.

Posted on May 06, 2008

acdr
  • 1913 Answers

SOURCE: no signal check input cable .

when u start the pc press F8 key then go to enable vga mode or safe mode or last known good config...
then set your display resoluiton to 800*600 or 1024*768
thatas all.

Posted on Oct 09, 2008

  • 64 Answers

SOURCE: No Monitor display with P4VMA-M Motherboard cpu...

good day,

have you tried unplugging and replugging the cable connecting from the monitor to the video card? if after trying that it your video card is still not functioning, try installing a separate video card in its appropriate slot and try if this will work. better yet, have it checked by a competent technician in your area to verify other possible causes of this problem.

i hope this will help

Posted on Oct 13, 2008

SOURCE: The power supply burned out. replaced it. Still I get, no signal

there will be one INTEGRATED CIRCUIT (ic) near by the pci slot it is called as the video adapter ic ....
if this ic is dead then the the display will not come ...

so you need replace that ic ..

you can do that if you are experienced professional ...

if you have no idea then you need take it to motherboard technician ... ..


regards
-Dileep

Posted on Nov 23, 2008

sudeep_chatt
  • 4 Answers

SOURCE: monitor display problem..

Change yor keyboard. If any one key remains pressd or if any pin is bent then evrything seems to work but there is no Display and no beeps or error messages either!......i too suffered the same once................sodeep

Posted on Mar 18, 2009

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1 Answer

Changed cpu on packard bell imedia d3318, still getting no signal on monitor and no beeps. When I remove the cpu and power on, there are no beeps


Have you check with different RAM, Did you try to reset BIOS by removing the CMOS battery and shorting CMOS jumper? Your Processor may be ok but you are plying with it. When there use to be no display then first thing you should doubt with the CMOS battery and the RAM and Motherboard, rather then CPU, CPU hardly gives problem.

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I have a va703b monitor that when turned on immediately displays NO SIGNAL then the green light turns to orange and the screen goes black. What's the problem?


That is usually a sign of a video problem, but first you should try to use your current monitor on another computer to see if it works there and/or try to use a different monitor on your computer. If your current monitor does not work on another computer and a different monitor DOES work on YOUR computer, then your monitor is broken and needs to be replaced (I will be utterly shocked if it's the monitor though).

Anyhow, going on the assumption that it's a video issue, Turn off the computer and unplug it from the wall and unplug the monitor from the computer. Now open up the computer tower. There are two things that you can try that won't require you to buy new hardware.

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2.) You can remove the video card, blow all the dust out, and remove the CMOS battery (It looks like a shiny nickel that is sitting in your motherboard) for a minute or so. HOWEVER, if you do this, your BIOS will go back to it's default setup, which is fine if you never changed anything. Put the Video card back in, put the CMOS battery back in, close the computer, plug the computer back into the wall and the monitor back into the computer.
-------------- If you removed the CMOS battery AND you now have video, you're going to have to go into BIOS (setup) and change the date to the current date and time. (when your computer starts up, you'll see on the screen something like "PRESS DELETE TO ENTER SETUP" at that point press the delete key, or whatever key it says to press and you'll enter BIOS)

If you're still not having any luck, then your best bet is going to be to change out the video card with a compatible video card that you know is in working condition and if that works, then that means you will need to purchase a new video card because your current one is broken.

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My power button come on and off and i make sounds 4 times my screen is not working too.


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very incomplete thread..i gotta know 1st what is ur system configuration..is all ur system is getting power on..is there any light on cabinet glowing (the power n hdd)..is there is power light coming on ur monitor..is there any sound coming out of the system..or the set is dead..??..

considering that the system gets on but u get no display and assuming that the bios has not been flashed in a wrong way..

probably itz either minor case of loose ram/improper ground/cmos battery..
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..plz do check the following as in order:..

1) in power on mode, open/unplug the data/vga cable of the monitor from cabinet..see if raster or 'osd' is appearing on the monitor screen..if so monitor is ok..else replace the monitor and see..

2) if u hv a graphics card, replace with a standby or onboard and see..

3) see if the ram(s) is loose/faulty..open clean/remove carbon & or oxide formed on the teeth with an eraser n resit it..or replace with a standby n see..

4) unplug mains supply..pick open/remove the cmos battery..check (above +3v)..resit..

5) remove/clean dust neatly..dust is non-uniform in nature n may cause jam/short circuitry/excess resistace n many more..resulting an increase in heat..

6) open the CPU Heat-Sink with fan out of the socket..put some "Heat Sink Compound" (available in local electronics chip level spare market) between the cpu/processor and the CPU Heat Sink *** fan..resit/fit it tightly in position..

7) the smps itself may b defective/faulty..check the outputs of smps viz. 0v (black~ground); +12v (yellow); +5v (red, green~ps-on, violet~pg & grey~sb); -12v (blue); -5v(white); +3.3v(orange)..
the 'oscillator and error amplifier ic', or pwm switching regulator circuit..look for defective protector-transformer/resistance(esp 4.7k)/mosfet..

8) if itz not the smps, then it must b ur main/mother board..see with a debug card for mb error..may b short..look for defective capacitors(esp above 1000mfd)/mosfets..go through the mb's south bridge n the circuit lie around atx connector..the crystal clock generator (if cpu isn't heating up)....

always better to seek advise from ur system admin/vendor....

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1 Answer

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Hi there
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