Question about Intel Compaq Deskpro EN Pentium 3 1Ghz / 256MB SDRAM / 20GB HDD / CDROM / Integrated 10/100 LAN / NO OS / (RBDTCPQP31GW98) PC Desktop

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Computer was working when the power turn off and power led turns red

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IT seems that the power destroy your power supply, the question now when you try to turn your computer, do you hear anything? or it doesnot turn on at all. if this is the case, replace the power supply.

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Posted on Oct 08, 2009

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Hard drive led light stays on after i turn off computer


have a look at p28 of the set up guide
http://downloads.dell.com/Manuals/Common/inspiron-560_setup%20guide_en-us.pdf
and read this for an idea also
Power LED stays on when computer shuts down
(I searched the internet on "Red led light in front of computer stays on after i turn off computer " to obtain many results, this is just one)
23.February.2015

Apr 29, 2014 | Dell Inspiron 560 PC Desktop

1 Answer

It works intermittenly


3) The LED turns on or flashes red during initial boot up :
When the temperature inside the car is too high or too low, the red LED flashes. In this case,
follow the steps below.
Turn the product power off and ventilate the car to return to normal ambient temperature.
Turn the power on after a little while and observe the LED color.
If the red LED still flashes under normal temperature, contact customer service.
Ref: Plenio VXA3000 Users Manual Pg 5/6 1-4 Troubleshooting
DVSSynchrome_VXA-3000_UserManual.pdf
Download Files At MS Skydrive Email jeffreydrescher@Bellsouth.net For
Login and Password

Dec 23, 2013 | Digital Video Systems Plenio VXA-3000 GPS...

1 Answer

Nec vt540 vt540k


probably needs filters cleaning or a new lamp replacement.

Oct 07, 2013 | NEC VT460 Multimedia Projector

1 Answer

Power supply LED (Green) turned to red and blinking and nothing works


Power Supply is bad. Plain and Simple. Replace it. Regards, joecoolvette

Aug 31, 2012 | MSI Hp Compaq Evo Ms-6541 Rev 1.0...

1 Answer

I was trying to format my computer when sudenly i moved the cd drive to conect a dvd drive , i think i heard static , thats when the red led turns on or beeps 5 times ,, could it be that the power source...


Make sure your RAM and all your cards are seated correctly. I'm guessing based on the static sound and immediate loss of power that your power supply is damaged and needs to be replaced. If the fan in your power supply doesn't turn on, this is in indication that you have a dead power supply. Smell the power supply to make sure it isn't burnt. It will be very obvious if it is.

May 04, 2011 | Computers & Internet

1 Answer

Gateway mx6448 Notebook will not power on, Red LED flashes 4 times when power on button is pressed then nothing happens. It is the same with only the battery. LED will not flash if I have only the power...


There can be many things associated with no power to the computer.
  • The outlet into which the computer is plugged may be inoperative.

  • The surge protector you are using may be inoperative.

  • The power cable may be loose or damaged.

  • An internal device may be damaged.

  • The power supply may be inoperative.

Basic Troubleshooting Power to the Computer
There may not be a consistent flow of power to the computer.
  1. Verify that the outlet into which you are plugging the computer is operational.

  2. If you have the computer plugged into a surge protector, plug it directly into the outlet.

  3. Verify that the power cable is plugged securely into the back of the computer.

  4. If you have a monitor with a removable power cord, swap the power cords between the monitor and the computer.

Note: If you recently added a new hardware device prior to experiencing the no power issue, turn off the computer and remove the newly added hardware. If there is still no power, reseat all the other cards and cables in the computer to verify that all other devices are seated securely.
Resolving Power Supply Issues
  • External Device Conflicts
  • There may be an external device causing the computer not to turn on properly.

    1. Before continuing, verify your computer is turned off.

    2. After you have established that adequate electricity is going to your computer, verify that the voltage switch on the back of the power supply is set correctly. The small red switch is to be set to the 115-volt setting.

    3. Remove all external devices except the monitor and turn on the computer. If the fan on the back of the computer now spins, turn off the computer. Plug in the external devices one at a time and turn on the computer after each device is added.

    4. Note: If you removed all external components and the fan on the back of the computer does not spin, the problem is with something inside the computer.

  • Internal Device Conflicts
  • This helps determine if the issue is a damaged or badly seated component.

    1. Verify that the computer is turned off.

    2. Remove the case from the computer.

    3. Remove all the red, yellow, and black power connectors from each floppy disk drive, CD-ROM drive, and tape backup unit that is in the computer. The only devices connected to the power supply are your hard disk drive and motherboard.

    4. Turn on the computer and verify that the fan on the back of the computer spins. If it does not spin, turn off the computer.

    5. Remove the power connection from the hard disk drive and reconnect power to one floppy disk drive. Turn on the computer and verify that the fan on the back of the computer spins.

    6. Reseat the power connection from the power supply to the motherboard. Turn on the computer and verify that the fan on the back of the computer spins. If the power has been restored, turn off the computer and reconnect the power connections to the devices. Test the computer for power after reconnecting each device.

  • Power Switch
  • The power switch may not be functioning properly.

    1. You may need to open the case and readjust the power switch.

    2. Locate the control panel inside the computer and remove any screws holding it in place.

    3. Turn on the computer with the control panel removed by pressing the button on the control panel that corresponds to the power button. If the power supply fan spins and/or the computer turns on, put the control panel back in its place. Try to turn on the computer again.

  • Test Switch and Diagnostic LED
  • Note: Not all power supplies have a test switch and diagnostic LED.
    Certain power supplies have a test switch and LED to help better troubleshoot the device. The green LED is always on when the computer is powered on. If the computer is not receiving power please perform the diagnostic test below.

    1. Verify that the computer is turned off.
    2. Remove the case from the computer.
    3. Remove all of the red, yellow, and black power connectors from each floppy disk drive and ROM drive and the tape backup unit (TBU) that is in the computer. Remove all power connectors from the motherboard. The only device that needs to be connected to the power supply is the hard disk drive.
    4. Press and hold the test switch for five seconds on the power supply, and then verify that the green light on the power supply comes on.
    5. If the light comes on:
      1. The power supply is good and something that was plugged into the power supply is causing the computer to not turn on.
      2. Plug devices in one at a time, testing with the test switch between each device to determine what is causing the power issue.
      3. If all devices are plugged in and the light is working, the connections may have needed to be reseated, or it is possibly a power switch issue.
      4. Go to the power switch section of the power supply checklist for additional troubleshooting steps.

    6. If the light does not come on:
      1. Disconnect the power from the hard disk drive, and then plug in power to the CD-ROM drive and determine whether the light comes on.
      2. If it does, follow the preceding information - "If the light comes on."
      3. If the light still does not come on, contact Gateway Technical Support.

    7. Confirm that power from the power supply is connected to the motherboard. Remove all cards and cables from the motherboard, and press and hold the test switch for five seconds on the power supply and determine whether the green light-emitting diode (LED) comes on.
    8. If the LED comes on, put the devices back in one at a time, testing between each device to determine what is causing the issue.



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Dec 02, 2010 | Gateway MX6448 Notebook

1 Answer

The front LED flashes red & blue when I turn it on. What does this mean?


LED Indicators - LaCie 2big Network
The LED indicators above the drive bays and the front LED indicate drive status and activity.
During Startup
  • Front LED – blinks red/blue until both disks are powered on, then turns solid blue.
  • Rear LEDs – blinks red/blue until corresponding disk is powered on, then turns solid blue.
NOTE: If the device is not able to initiate the boot process following disk startup, the front is solid red.
During Bootup
  • Front LED – solid blue
  • Rear LEDs – solid blue
NOTE: If a disk is failing, both the disk’s corresponding rear LED and the front LED will be solid red.
During RAID Synchronization
  • Front LED – solid red
  • Rear LEDs – The LED corresponding to the original disk will be blinking blue and the one being synchronized is blinking red
  • Once both disks are synchronized, their corresponding rear LED and the front LED will be solid blue.

Apr 06, 2010 | LaCie 2 TB 2big Triple Interface External...

1 Answer

TURNED ON, HEARD A CRACK SOUND, NOW JUST A BLNKING RED LIGHT? PRIOR TO THIS THE COMPUTER WORKED FINE!---MONITOR WORKS ON ANOTHER COMPUTER....I GET NOTHING ON THE SCREEN & THE DISK UNIT DOESN'T...


If the power LED is blinking red, that's usually the PC telling you there is an error. Is it an HP/Compaq? The number of blinks can tell you what the problem is. If you heard a crack sound when you turned it on, I'm willing to bet the power supply went. You can go to the manufacturer's website and look through their Support Information and see what the red LED tells you.

Oct 03, 2009 | Computers & Internet

1 Answer

Inconsistant turn on


This set has a history of power supply problems. The power supplies are NLA from the manufacturer - but if you make an inquiry to www.parts-link.com they will be able to supply you with a power supply.

Apr 24, 2009 | Polaroid FLM-3201 Television

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