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Help MONITOR SAYS SIGNAL LOST - REPLACED HARD DRIVE - THOUGHT I HAD A VIRUS. EVERY ONCE IN AWHILE SYSTEM WILL RUN IN EITHER SAFE MODE OR REGULAS WINDOWS. THEN SIGNAL LOST APPEARS. WONDERING IF POWER TO HARD DRIVE IS A PROBLEM MY INDICATOR LIGHT STOPS FLICKERING AND STAYS SOLID. ANY IDEAS. MOTHERBOARD, POWER SUPPLY, ETC?

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  • Anonymous Jan 30, 2009

    my system unit is on i changed the cables connected to the monitor but i get no signal out put thaks

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  • Master
  • 749 Answers

Signal lost usually means the cable is lose that connects the monitor to the back of your computer.
with the computer off and unplugged , disconnect the monitor cable from the video port on the back of the computer and physically inspect the pins to make sure they are not bent on the monitor end.
some monitors have the same plug on both ends , so it doesn't hurt to check the monitor side of the cable.
Once the cable has been checked, if the cover is off the computer, i would check all cables and add-in card to make sure they are fully in thier slots and ports.
check memory for the same issues.
If your monitor is a multi-function device , make sure you didnt forget to hit the source button on it , could be on the wrong input.

Posted on Oct 23, 2008

  • Jeff Strader
    Jeff Strader Oct 24, 2008

    If the hard drive activity light is staying solid, its showing you that something is keeping it busy.

    this could be a virus scanner set to run at startup, a program or virus, or windows try to check the system or hard drive.

    tell me, when you replaced the hard drive, is it internal or external? Did you set the jumpers correctly on the hard drive? Are all cables connecting the hard drive and other devices inside snugly in thier slots? Is the RAM seated correctly or the video card loose in it's slot?

    pull the cover back off the computer and physically inspect these things.

    we have to get a picture before we can work in the operating system.

    then post again here and we go to another step.

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Mesmo
  • 164 Answers

SOURCE: T3092

That problem would either be with your video driver or your video card or both.
I suggest looking up your audio device whether it be a card or onboard.
If its onboard, the manual for your motherboard will have it.
Update the drivers.
If its the video card faultering, i suggest buying a new one that fits your motherboard.
The socket size for your video card will also be found in your motherboard manual.

Posted on Oct 23, 2008

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Hi Jason,

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Here are Few steps which can use to trouble shoot your laptop no display problem.

1. Connect a VGA
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test all power and data leads that attach to your hard drive the leads from your

(motherboard to your hard drive) Sata make sure they have dust free secure connections and are not faulty or just replace them they could be faulty

make sure all leads that are attached to your drives dvd\cd have secure connections and are not faulty

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have an end for a computer to be able work properly

make sure your graphics card is securely seated with no dust

then try it if it does not work
try in safe mode

you might need to get rid of the virus first
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Restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer


Windows Advanced Options Menu

Please select an option:

Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt

Enable Boot Logging
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Last Known Good Configuration (your most recent settings that worked)
Directory Services Restore Mode (Windows domain controllers only)
Debugging Mode

Start Windows Normally
Reboot


Return to OS Choices MenuSelect safe mode with networking to download


http://www.microsoft.com/en-us/download/virus-malware.aspx?q=virus

anti virus and malware



http://windows.microsoft.com/en-US/windows/products/security-essentials

your operating system must be registered and activated


http://windows.microsoft.com/en-US/windows/products/security-essentials?WT.mc_id=MSCOM_EN_US_DLC_FAMILIES_131Z4ENUS21979

microsoft security essentials



http://100-downloads.com/download.php?p=615

Anti-virus and anti-spyware solution Xp

http://100-downloads.com/download.php?p=614

Anti-virus and anti-spyware solution windows 7 64 bit


you could download and run just the Anti malware program or any other you might need

after you have run the Anti malware program

hope this helps

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You have a virus on your PC. Unfortunately, once you have this virus, it usually does not help updating your anti virus and running a scan since the virus is running in the memory of the PC and every infected file the anti virus removes - the virus just puts back again. Try one of two things to remove the virus:

1] First update your anti virus (if you dont have an anti virus, download the free AVG Antivirus and install that and then update it. Click here to go to AVG's website. Once installed - Boot your pc into SAFE MODE. This is VERY important otherwise the virus will load into memory and it wont help running the anti virus to clean the system as the memory resident virus will just replace any infected file that is removed by the scan. To boot your PC into safe mode: Read this article: Click here.

Once you are in safe mode - Open the Anti-virus console and do a complete system scan.

2] Remove the infected hard drive from your PC and install it as a secondary drive in a clean, VIRUS PROTECTED PC!!! ... i.e .. any pc that has the latest anti-virus system installed and is up to date!. Once you have installed the infected drive in the protected PC as a secondary drive, run a scan on the infected drive and remove the virus.

Once you have removed the virus, also scan ANY USB devices on that PC, including any Cameras, cellphones, photo frames, etc that you might have plugged into the infected PC.

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Computer turns on, no signal to lcd. Hard drive


The blue screen was caused by corrupted drivers or a virus that was corrupting the drivers. Have you tried starting the machine in SAFE mode? To do this press F8 while the computer is starting before Windows loads. You should get a menu with several SAFE mode choices. Select SAFE mode and continue. If the computer works fine at this point, I suggest downloading the following AVGFREE.exe, MALWAREBYTES.exe and SUPERANTISPYWARE.exe. Run these to absolutely eliminate any chance of a virus. Once done go to START, Run and type SFC/scannow. You’ll need to have your original CD’s handy. This will replace any corrupt drivers. Now, what to do if you can’t get into SAFE mode. The question then is anything showing on the screen? If nothing but you can hear the fans but no beep codes I suggest you take the laptop to a reputable repair person or check my website www.micromendllc.com. Good luck.

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1 Answer

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1 Answer

T3092


That problem would either be with your video driver or your video card or both.
I suggest looking up your audio device whether it be a card or onboard.
If its onboard, the manual for your motherboard will have it.
Update the drivers.
If its the video card faultering, i suggest buying a new one that fits your motherboard.
The socket size for your video card will also be found in your motherboard manual.

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1 Answer

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Generally, when a firewall or antivirus application fails to load, a virus is the suspect cause. Many viruses are designed to attack/disable the firewall/antivirus as to infect the system. If the operating system has beenn compromised to the point you can only boot in the safe mode, the likelyhood of removing the viruses and still being able to repair the operating system WITHOUT a clean reinstall of Windows is not great.

Things you can try.
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