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Hp computer. hard drive light is solid yellow ..non working

Hp computer. hard drive light is solid yellow then turns out. Monitor stays in standby. fans are working on mobo and psu. I can hear the hdd spin. Whats up?



any help would be great. thanks

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  • 357 Answers

Hi 2xcapers

This could be a problem with your IDE or SATA cables that connect your Hard Disk to your Motherboard. Try replacing these before you try the next solution.

The constant yellow light usually indicates a crashed or non-functioning Hard Disk. You can take this to get repaired and only the data where the "Spindal Pin" crashed will be lost, otherwise the Hard Disk should still be fine. The screen does not come on during the event of a crashed or corrupted Hard Disk, so this is another indication that there is a problem with the Hard Disk.

Please remember to give this solution a FixYa! rating.

Happy Easter
BearWeb

Posted on Apr 12, 2009

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joecoolvette
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SOURCE: hp computer. hard drive light is solid yellow pc non working

What has transpired is the power supply is bad. Electrolytic Capacitors inside have failed. These capacitors relate directly to the voltage power rails of the power supply. They are filters.

Little more detailed.
Your computer power supply converts AC electricity into DC electricity. (A flashlight battery is an example of stored DC electricity)
AC comes into input Electrolytic capacitors. Goes to a rectifier bridge, and on through various other components. Along the way, this DC voltage is considered 'Raw'. It needs to be a steady, 'clean', supply of DC voltage. There are Electrolytic capacitors used in the final stage, to convert the 'raw' DC to 'true' DC.

In a computer power supply the Electrolytic capacitors are the weakest link. They are usually the first component to go out.

You computer power supply converts AC voltage into three DC voltages. 3.3 volts, 5 volts, and 12 volts. These are the power rails.

When one, or more Electrolytic capacitors are weak, they make a weak voltage rail.
To simplify explaining the construction of an Electrolytic capacitor, let's just state they are small aluminum 'cans', and have a seal at one end, or both ends. Inside there is an Electrolytic paste.
This paste can break down, and when it does it forms a gas. (Hydrogen gas) This gas expands inside the 'can', pushes up on the seal/s, and makes Electrolytic paste ooze out.

So much paste loss, and the capacitor can operate in a weakened state. Too much paste loss, and the capacitor fails.

ALL the lights in your computer use less than 1 Watt. EACH fan uses 2 to 3 Watts. A harddrive just sitting there spinning, may use up to 5 Watts.

A processor uses 55 to 125 Watts! Depends on the make and model.
Since the power supply is to weak to provide enough power to turn the processor on, the harddrive isn't activated. It just sits there and spins. No Boot record on the harddrive is found, so no Operating System is going to be running. (WinXP is an example of an O/S)

This essentially means No computer! Harddrive activity light indicates yellow, then goes out. There is no harddrive activity.

No signal from the computer, because the computer isn't working.
Monitor stays in Standby, because there is no signal from the computer.
Power supply failure is 70% of computer issues.

Why?
Owner neglects to keep the inside of the computer, and the power supply clean. Doesn't use a can of compressed air for computers regularly.
Also there is another issue that the owner has nothing to do with.
Capacitor Plague.
http://en.wikipedia.org/wiki/Capacitor_plague

Solution? Replace the power supply.

I know the above info may seem like a 'Hard pill to swallow', but as stated. A weak power supply will still spin fans, and light lights.
Harddrive may spin, or spin up, then stop.

The processor isn't getting enough power.

Posted on Apr 12, 2009

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I have a Dell Dimension E521. When I cut the power on everything comes on including the monitor, but the monitor will stay black. It does say something about power save hit any button but the screen


A solid green light means the computer is operating normally.

A solid yellow light indicates the power supply is operating normally but the computer is not processing data.

This could mean there is a problem with the CPu or another component on the motherboard.


((A blinking yellow light indicates the power supply is receiving power from the wall, but not functioning properly.
This generally means the power supply itself is bad and should be tested or replaced.))


A blinking green light means the computer is in standby mode.

You should consider visiting Dell Support and downloading the manual for your

your Dell computer. So use the LED power light codes if your Dell computer has them.

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Please visit the below link to solve your problem.Due to some problems I was unable to send you the whole solution so please visit the site.

http://www.ehow.com/how_113600_troubleshoot-computer-wont.html

Thanks And sorry for the inconvenience.
Please rate me for this solution if it works for you.
  • Step 2 If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szt64gb5
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9
  • Step 4 If you can hear the computer's fan or hard-disk drive, or if you can see indicator lights on the main unit but the monitor stays dark, make sure that the monitor is connected to a working power source, that it's turned on and that it's securely connected to the computer via the video cable.
  • Step 5 If the monitor and computer have power but the computer displays a "Non-system disk or disk error" message, check to make sure you didn't leave a disk in the A: drive. If you did, eject it and restart the computer.

  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9
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  • Read more: How to Troubleshoot a Computer That Won't Start | eHow.com http://www.ehow.com/how_113600_troubleshoot-computer-wont.html#ixzz0szsjH6o9

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    Hp computer. hard drive light is solid yellow pc non working


    What has transpired is the power supply is bad. Electrolytic Capacitors inside have failed. These capacitors relate directly to the voltage power rails of the power supply. They are filters.

    Little more detailed.
    Your computer power supply converts AC electricity into DC electricity. (A flashlight battery is an example of stored DC electricity)
    AC comes into input Electrolytic capacitors. Goes to a rectifier bridge, and on through various other components. Along the way, this DC voltage is considered 'Raw'. It needs to be a steady, 'clean', supply of DC voltage. There are Electrolytic capacitors used in the final stage, to convert the 'raw' DC to 'true' DC.

    In a computer power supply the Electrolytic capacitors are the weakest link. They are usually the first component to go out.

    You computer power supply converts AC voltage into three DC voltages. 3.3 volts, 5 volts, and 12 volts. These are the power rails.

    When one, or more Electrolytic capacitors are weak, they make a weak voltage rail.
    To simplify explaining the construction of an Electrolytic capacitor, let's just state they are small aluminum 'cans', and have a seal at one end, or both ends. Inside there is an Electrolytic paste.
    This paste can break down, and when it does it forms a gas. (Hydrogen gas) This gas expands inside the 'can', pushes up on the seal/s, and makes Electrolytic paste ooze out.

    So much paste loss, and the capacitor can operate in a weakened state. Too much paste loss, and the capacitor fails.

    ALL the lights in your computer use less than 1 Watt. EACH fan uses 2 to 3 Watts. A harddrive just sitting there spinning, may use up to 5 Watts.

    A processor uses 55 to 125 Watts! Depends on the make and model.
    Since the power supply is to weak to provide enough power to turn the processor on, the harddrive isn't activated. It just sits there and spins. No Boot record on the harddrive is found, so no Operating System is going to be running. (WinXP is an example of an O/S)

    This essentially means No computer! Harddrive activity light indicates yellow, then goes out. There is no harddrive activity.

    No signal from the computer, because the computer isn't working.
    Monitor stays in Standby, because there is no signal from the computer.
    Power supply failure is 70% of computer issues.

    Why?
    Owner neglects to keep the inside of the computer, and the power supply clean. Doesn't use a can of compressed air for computers regularly.
    Also there is another issue that the owner has nothing to do with.
    Capacitor Plague.
    http://en.wikipedia.org/wiki/Capacitor_plague

    Solution? Replace the power supply.

    I know the above info may seem like a 'Hard pill to swallow', but as stated. A weak power supply will still spin fans, and light lights.
    Harddrive may spin, or spin up, then stop.

    The processor isn't getting enough power.

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