Question about HP xw6600 Workstation with 650W 80 PLUS Energy Efficient Chassis w/ LP2465 24-inch Flat Panel Moni... PC Desktop

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HP XW6600 will not power up. Have removed/reseated all power connections to fans, drives, etc. Green led on backside (80 Plus) will not turn on at all. Was working fine just before I installed a SCSI MO drive and SCSI card. I've removed them and still the HP will not power up. I know it sounds like a power supply failure, but I didn't see (or smell) any problems during or after the installation of the SCSI parts. Any ideas? Thanks, Ray Perez

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I would replace the power supply if there is no light assuming you tried a different power cord and outlet. They put the light there to notify you if you are getting power or not.

Posted on Mar 18, 2011

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Hp dv5020us won't boot. upon power up I get some brief hard drive activity and fan noise. No blinking LED error codes. Caps and/or Num lock LED's do not light. Power LED will glow and HD...


step one, big battery out? skipped that?
step 2, a good power pack , that means 19vdc on those 2 pins.
bingo BIOS screen now work ,yes?
step 3, try an external VGA screen at the P15 VGA jack there
screens work now (BIOS first) yes/no?

remove DVD, drive
and all USB devices
there booting with only 1 memory stick. (got more?, try each 1 by 1)
black screens of *****'.

the lack of flash codes, Implies Power pack is dead. or CPU overheated, and selfshuts down. that fan going dead tells
me the power park is dead.

http://pcdied.com/#black-screens

May 01, 2017 | HP Pavilion dv5020us Notebook

1 Answer

Powered down my cpu (hp pavilion 1530 ) and about 5 hours later it would not power up. Hit he power button and nothing, no fans, no blue light, no cdrom bliking, but the green led is lit on the P/S.


Hi,

Open your tower:
Remove first the video card if you are using a Add in video card. Of course connect your monitor to the built-in video card
Try now

Next remove ram and reseat them back ( if you have more than one stick, try reseating only one)

Try now again

Disconnect CD-rom, Hard Drive

Try now

Last but not least try a different Power supply

Good Luck

Apr 29, 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

My d530 minitower powers off unexpectedly and red lights starts to blink on System's LED//


Hi Kindly let me know how many times the red light blinks
Condition Code Service Actions Processor thermal protection activated. Power LED blinks red twice, once a second, followed by a two second pause.
  1. Make sure the computer air vents are not blocked and that the cooling fan is running.
  2. Open the hood, press the power button, and see if the processor fan spins. If the fan is not spinning, make sure the fan cable is plugged into the cable header on the system board, and that the fan is properly installed and seated.
  3. If the fan is plugged in and seated properly, but is still not spinning, replace the processor fan.
  4. Reseat the processor heatsink and make sure the fan assembly is attached to the heatsink properly.
Processor is not installed. Power LED blinks red three times, once a second, followed by a two second pause.
NOTE: This condition indicates a missing or improperly installed processor, not a defective one.

Make sure there is a processor in the system. Reseat the processor and verify that it is installed properly. Power failure (power supply is overloaded) Power LED blinks red four times, once a second, followed by a two second pause.
  1. Check the voltage selector, located on the rear of the power supply, is set to the correct voltage (the correct setting depends on the region).
  2. Open the hood and make sure the 4-wire power supply cable is fully connected to the power connector on the system board.
  3. Check if a device is causing the problem by removing all attached devices (such as disk drives and expansion cards), then power on the system. If the system enters POST, power off and replace one device at a time, repeating the procedure until the system power failure reoccurs. Replace the device that caused the failure, then replace each of the other devices and confirm that they are functioning properly.
  4. If you cannot isolate the failure to a specific device in the previous step, replace the power supply. **
  5. Replace the system board.*
Pre-video memory error. Power LED blinks red five times, once a second, followed by a two second pause, and five simultaneous beeps are sounded
  1. Reseat the DIMMs in the memory slots on the system board, then power on the system.
  2. Replace the DIMMs one at a time to isolate the faulty module.
  3. Replace 3rd-party memory with HP memory.
  4. Replace the system board.*
Pre-video graphics error. Power LED blinks red six times, once every second, followed by a two second pause, and six simultaneous beeps are sounded. For systems with a graphic card:

  1. Reseat the graphics card and then power on the system.
  2. Replace the graphics card.
  3. Replace the system board.*


For systems with integrated (on-board) graphics, replace the system board. PCA (system board) failure. ROM detected failure prior to video. Power LED blinks red seven times, once a second, followed by a two second pause, and seven simultaneous beeps are sounded. Replace the system board. Invalid ROM based on bad checksum Power LED blinks red eight times, once a second, followed by a two second pause, and eight simultaneous beeps are sounded.
  1. Reflash the ROM using a ROMPaq diskette.
  2. Replace the system board.*
System does not power on. No beeps or blinks since the system is not functioning. Press and hold the power button for less than four seconds. Perform the following steps depending on whether the hard drive LED turns green.

If the hard drive LED turns green, then:

  1. Make sure the voltage selector (which is located on the back of the power supply) is set to the correct voltage for your region.
  2. Remove the expansion cards one at a time until the 3.3V auxiliary light on the system board turns on. If removing a card turns the light on, replace the card and then see if the system works.
  3. Replace the system board.*


If the hard drive LED does not turn green, then:

  1. Make sure the computer is plugged into a functioning AC power outlet.
  2. Open the hood and make sure the power button is securely fastened in the power harness and that the harness is connected properly to the power connector on the system board. In other words, make sure that the power button is making contact with the power circuit.
  3. Make sure the power supply cables are connected properly to the power connectors on the system board.
  4. Check to see if the 3.3V auxiliary light on the system board is not turned on, replace the power supply. **
  5. Replace the system board.*

Dec 29, 2009 | HP Compaq d530 Convertible Minitower PC...

1 Answer

If u by a car with hp on it what happens with hp


I don't understand your question. If you give me a more detailed question I might be able to help you. Thanks.
JimmyC

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1 Answer

I am having hp compaq nc2400 laptop. my track ball is not working properly. what to do?


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1 Answer

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Power on the printer ,
Open the right most corner cover when facing to printer ,Cartiage container will rest to stable position ,hold cartiage from top and twist it towards your direction ,it ill come out

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