Question about Compaq PC Desktops

1 Answer

I disconnected my power supply and can't remember which cables go where.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 169 Answers

There is no "order" to the cables that provide power to the devices. One needs to go to the hard drive (each hard drive), one to the CD-ROM drive, one to the floppy (if you have one), one to any case fans that require it, etc.

There will also be a connector (or two) that come from the power supply that go onto the motherboard that supply power to it. They only go in one way, so you can't mess it up. However, if you bought an AT power supply for an ATX motherboard (for example) they won't be the right connectors.

Start with the edge of the motherboard closest to the power supply and slowly look at the board until you see the connectors. That's where they go.

Hope this helps - remember to rate :)

Posted on Oct 02, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Replace power jack


Power supply failures in a HP computer can cause your computer to fail to turn on, to operate erratically or cause certain system components not function.

However, the power supply is one of the easiest parts of a computer to replace.
You don't need any special skills to do this.

If you're nervous about opening up your computer case and potentially damaging a computer component, don't be.

All you are really doing is plugging in power supply cables after securing the power supply.
The process should take 10 minutes maximum.

Shut down your HP computer.
Disconnect the power cable from the power supply on the back of your computer.

WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL.
http://www.kitchentablecomputers.com/static.php - rules
Only work inside the computer case when the power has been switched off and disconnected. Never open the power source.

Some of the below steps recommend removing physical parts within the computer.
While in the computer it is highly recommend that you be aware of ESD and its potential hazards.


Unscrew the side panel from the back of the case and slide it off.
Newer HP computers may have a case door you can open for access or have access buttons to press.


Look at the back of your HP computer case for a set of four screws near the top of the case. Remove these screws and set them aside.
Carefully slide your power supply out of the mounting brackets and set it on a clean working surface.
Do not disconnect any of the power connectors yet.

Slide your replacement HP power supply into the case and use the mounting screws to attach it to the chassis.


Use your old HP power supply as a guide to connect your new power supply to all the computer components.

Switch the power cables from each device from the old supply to the new supply so you don't miss connecting any cables.

Check that all the components have power cables inserted and the old HP power supply is completely disconnected from the system.

Close the HP computer case and plug the power cable into the new HP power supply.
http://www.fonerbooks.com/r_power.htm

Apr 15, 2014 | HP Hewlett Packard Pavilion Slimline...

1 Answer

Replacing a hard drive on Sony PCV-W501B with a


The Sony VAIO PCV-series is Sony's line of desktop computers. While they are not terribly difficult computers to disassemble, the parts can still be easily damaged in the process. Replacing hardware in a PCV typically means dismantling the computer.

Shut down the computer and disconnect all cables and devices. Position the computer with its back panel facing you. WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. http://www.kitchentablecomputers.com/static.php - rules Only work inside the computer case when the power has been switched off and disconnected. Never open the power source. Some of the below steps recommend removing physical parts within the computer. While in the computer it is highly recommend that you be aware of ESD and its potential hazards Attach an electrostatic discharge (ESD) strap to your wrist. Connect its wire clip to your computer's outer casing. Locate the metal tab in the upper right corner of the back panel, securing the right access panel in place. Pull on the tab with one hand, and with your free hand grasp the side panel and pull it away from the computer until the inside of the computer is accessible. Place the computer tower horizontally on its left side. Locate the power supply attached to the back panel inside the computer. Disconnect the power supply cable from its connector on the motherboard. Locate the pull-tab on the right side of the power supply assembly. Lift up on the pull-tab, and then remove the power supply assembly from the computer. Locate the RAM modules near the center of the motherboard. The motherboard is where all the hardware connects with your computer. Spread the white, retaining latches on each side of either RAM module. Grasp each module and lift them out of their respective memory slots. Store the modules in a static-free plastic bag, if possible. Locate the hard drive attached to the drive cage on the computer's front panel. The drive cage holds the CD/DVD, floppy and hard drives. The hard drive is usually located beneath the CD/DVD drive inside the drive cage. Disconnect the two power and data cables from the back of the drive. Pull on the locking tab that holds the drive in place.

Grasp the drive and pull it out of the drive cage. Hope this helps.

Dec 22, 2012 | PC Desktops

1 Answer

Replace power supply acer ax3910


Open the case. Disconnect all cables from power supply. Unscrew the power supply. Remove it from the case. Install the new one. Screw it. Connect all needed cables. Close your case. It's done. Turn on your computer and enjoy.

Aug 06, 2012 | PC Desktops

1 Answer

Pavillion does not start up push power on and nothing happens blinking light on back of power supply


Power supply light on or flashesPerform the following steps, in order, until power is restored or it is determined that there is a hardware failure: CAUTION: This product contains components that are easily damaged by ElectroStatic Discharge (ESD). To reduce the chance of ESD damage, work over a non-carpeted floor, use a static dissipative work surface (like a conductive foam pad), and wear an ESD wrist strap that is connected to a grounded surface, like the metal frame of a PC.
  1. Disconnect everything from the computer, including the power cord.
  2. With the power cord disconnected , press the power button on the front of the computer for five seconds.Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
    NOTE: If the power supply fan makes an inconsistent grinding sound or stops and starts erratically, replace the power supply
  3. With the power cord removed, flip the red voltage selector switch to the opposite position. Wait about five seconds, and then switch the red voltage selector switch back to its original location. Ensure that the voltage selector switch is on the correct setting, 115V for North America.Performing this step ensures that the voltage switch is engaged and set correctly for your country/region. Figure 4: Voltage selector switchc00517964.jpgPlug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
  4. Plug a lamp into the same outlet to see if the wall outlet has power. Try the computer in a different outlet in order to eliminate the outlet as a possible source of the issue. Test both to see if the wall outlets have power.
  5. Remove all extension cords, power strips, surge protectors and any converters that remove ground. Plug the power cable directly to the wall outlet. Test for power. If this fixes the issue, find the device that is causing the issue and do not use it.
    NOTE: If you find the device that was causing the problem was a surge protector, resetting a breaker or fuse on the surge protector may fix the issue.
  6. Remove all attached devices except for keyboard, mouse, and monitor.
  7. Remove any internal component that was recently added, such as video card, memory, CD, DVD, and hard drives. An added device may take more power than the power supply is rated for. If the problem goes away when the component is removed, the only option is to upgrade the power supply to power supply with a higher wattage rating.
  8. Check the power switch:
    1. With the power cord disconnected, press the power button on the front of the PC. The button should release easily and not stick in the socket.
      • If the button sticks, it should be replaced or serviced.
      • If the power button does not stick and appears to be functioning, continue using these steps.
    2. With the power cord disconnected, remove the case or side panel.
    3. Follow the wires from the power button on the front of the computer to their connection on the motherboard.
    4. Look at the power switch cables connected to the motherboard. If the cable has become disconnected, connect the power switch cable connector to the connector on the motherboard. Figure 5: Power switch connector on Motherboardc00517968.jpg
    5. Replace the side panel, plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
  9. Find the defective part:
    1. With the power cord disconnected, remove the case or side panel.
    2. Disconnect all power cable connectors from their connectors on the motherboard and from the back of internal devices (the back of drives). Make sure to label or remember where each cable connects for future reference. Figure 6: Example of common power connectionsc00540428.jpg
    3. Replace the side panel, plug in the power cord, and examine the light on the back of the power supply:
      • If the LED is on solid and is not flashing, the power supply is probably good and the problem is most likely caused by a defective component (processor, memory, PCI card) or a defective motherboard. Have the computer serviced, or remove the components and replace them, one at a time, to find and replace the defective component.
      • If the LED is still flashing (it should not flash with all connectors removed), plug the power cable into a different power outlet that is known to be good. If the LED still flashes, the power supply should be replaced.
      • If the LED light is now off, plug the power cable into a different power outlet that is known to be good. If the LED stays off, the power supply should be replaced.

      NOTE: If an electrical storm or power surge has recently occurred, then it is more likely that the power supply, the modem, or motherboard is damaged and requires replacement. If the power supply was damaged due to power outage or storm, this may not be covered under the "act of nature" policy in the warranty statement. Refer to the warranty statement that came with your computer for more information.

Feb 28, 2010 | HP Pavilion a1610n PC Desktop

1 Answer

How to get motherboard out of a hp pavilion 524w


On the outside, disconnect the power-cable, then the keyboard/mouse/video/audio/USB/printer cables.

Disconnect all the cables from the power-supply to the devices (disk, CD-ROM) and to the motherboard.

On the outside-back, remove the screws holding the power-supply in position, and then remove the power-supply.

Remove the screw holding each add-in card (audio, video, modem).
Remove each of the add-in card(s).

Remove the ribbon-cables from the motherboard to the diskette & disk-drive & CD-ROM.

Look for screws holding the motherboard to the case.
Remove those screws, and gently lift out the motherboard.



Oct 31, 2009 | HP Pavilion 524w (DB280AR#ABA) PC Desktop

1 Answer

My hp pavilion a336n will not turn on. When I plug the power cord in the light on the back of the hard drive will turn on, but when I press the power button nothing happens... any suggestions?


To resolve this issue you may need to open the chassis (the computer cabinet). You can call HP specialized support for help but they charge you for the support. You can call them at 866-211-5207.

OR - Follow the given steps.

Perform the following steps, in order, until power is restored or it is determined that there is a hardware failure: CAUTION: This product contains components that are easily damaged by ElectroStatic Discharge (ESD). To reduce the chance of ESD damage, work over a non-carpeted floor, use a static dissipative work surface (like a conductive foam pad), and wear an ESD wrist strap that is connected to a grounded surface, like the metal frame of a PC.
  1. Disconnect everything from the computer, including the power cord.
  2. With the power cord disconnected , press the power button on the front of the computer for five seconds. Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps. NOTE: If the power supply fan makes an inconsistent grinding sound or stops and starts erratically, replace the power supply
  3. With the power cord removed, flip the red voltage selector switch to the opposite position. Wait about five seconds, and then switch the red voltage selector switch back to its original location. Ensure that the voltage selector switch is on the correct setting, 115V for North America. Performing this step ensures that the voltage switch is engaged and set correctly for your country/region. Figure 4: Voltage selector switchc00517964.jpg Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
  4. Plug a lamp into the same outlet to see if the wall outlet has power. Try the computer in a different outlet in order to eliminate the outlet as a possible source of the issue. Test both to see if the wall outlets have power.
  5. Remove all extension cords, power strips, surge protectors and any converters that remove ground. Plug the power cable directly to the wall outlet. Test for power. If this fixes the issue, find the device that is causing the issue and do not use it. NOTE: If you find the device that was causing the problem was a surge protector, resetting a breaker or fuse on the surge protector may fix the issue.
  6. Remove all attached devices except for keyboard, mouse, and monitor.
  7. Remove any internal component that was recently added, such as video card, memory, CD, DVD, and hard drives. An added device may take more power than the power supply is rated for. If the problem goes away when the component is removed, the only option is to upgrade the power supply to power supply with a higher wattage rating.
  8. Check the power switch:
    1. With the power cord disconnected, press the power button on the front of the PC. The button should release easily and not stick in the socket.
      • If the button sticks, it should be replaced or serviced.
      • If the power button does not stick and appears to be functioning, continue using these steps.
    2. With the power cord disconnected, remove the case or side panel.
    3. Follow the wires from the power button on the front of the computer to their connection on the motherboard.
    4. Look at the power switch cables connected to the motherboard. If the cable has become disconnected, connect the power switch cable connector to the connector on the motherboard. Figure 5: Power switch connector on Motherboardc00517968.jpg
    5. Replace the side panel, plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
  9. Find the defective part:
    1. With the power cord disconnected, remove the case or side panel.
    2. Disconnect all power cable connectors from their connectors on the motherboard and from the back of internal devices (the back of drives). Make sure to label or remember where each cable connects for future reference. Figure 6: Example of common power connectionsc00540428.jpg
    3. Replace the side panel, plug in the power cord, and examine the light on the back of the power supply:
      • If the LED is on solid and is not flashing, the power supply is probably good and the problem is most likely caused by a defective component (processor, memory, PCI card) or a defective motherboard. Have the computer serviced, or remove the components and replace them, one at a time, to find and replace the defective component.
      • If the LED is still flashing (it should not flash with all connectors removed), plug the power cable into a different power outlet that is known to be good. If the LED still flashes, the power supply should be replaced.
      • If the LED light is now off, plug the power cable into a different power outlet that is known to be good. If the LED stays off, the power supply should be replaced.
      NOTE: If an electrical storm or power surge has recently occurred, then it is more likely that the power supply, the modem, or motherboard is damaged and requires replacement.

Oct 06, 2009 | HP PC Desktops

2 Answers

Power supply for Philips HEPC 7501/05 failure, can't start my pc! where can I find similar products to replace it?


hi zibby,
power supply are you sure of this,when turn on is the fan inside is not blowing,it easy to replace psu,my power supply is 4 1/2 years before i replace,the price of this made in china more or less $30.00.the important on specification is capacity how many watts
your psu.check on www.psuebay.com
on frigure as sample disconnect psu besure power off and disconnect all connection at the back of cpu.open cover of psu
two quick lock in bolt loosen and slide off cover,
01ff946.jpg
on psu there are multiple colors cable that are supplying your
mother board and others devices such as cd room,floopy anf hardisk, pull out or disconnect supply cable on mother board and other devices,then at the back side of cpu beside psu there are 5
screw loosen this and pull out your psu(power supply unit).then if you have new one just reverse the process of disconnecting psu on connecting back new one.
have anice day,rate me if your satisfied to my solution,thanks a lot.


Apr 29, 2009 | PC Desktops

1 Answer

Fast green blink


Perform the following steps, in order, until power is restored or it is determined that there is a hardware failure:

1.Disconnect everything from the computer, including the power cord.
2.With the power cord disconnected , press the power button on the front of the computer for five seconds. Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
NOTE: If the power supply fan makes an inconsistent grinding sound or stops and starts erratically, replace the power supply

3. With the power cord removed, flip the red voltage selector switch to the opposite position. Wait about five seconds, and then switch the red voltage selector switch back to its original location. Ensure that the voltage selector switch is on the correct setting, 115V for North America.
Performing this step ensures that the voltage switch is engaged and set correctly for your country/region.

4. Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
5. Plug a lamp into the same outlet to see if the wall outlet has power. Try the computer in a different outlet in order to eliminate the outlet as a possible source of the issue. Test both to see if the wall outlets have power.
6. Remove all extension cords, power strips, surge protectors and any converters that remove ground. Plug the power cable directly to the wall outlet. Test for power. If this fixes the issue, find the device that is causing the issue and do not use it.
NOTE: If you find the device that was causing the problem was a surge protector, resetting a breaker or fuse on the surge protector may fix the issue.
8. Remove all attached devices except for keyboard, mouse, and monitor.
9. Remove any internal component that was recently added, such as video card, memory, CD, DVD, and hard drives. An added device may take more power than the power supply is rated for. If the problem goes away when the component is removed, the only option is to upgrade the power supply to power supply with a higher wattage rating.
10. Check the power switch:
a. With the power cord disconnected, press the power button on the front of the PC. The button should release easily and not stick in the socket.
  • If the button sticks, it should be replaced or serviced.
  • If the power button does not stick and appears to be functioning, continue using these steps.
11. With the power cord disconnected, remove the case or side panel.
  • Follow the wires from the power button on the front of the computer to their connection on the motherboard.
  • Look at the power switch cables connected to the motherboard. If the cable has become disconnected, connect the power switch cable connector to the connector on the motherboard.
  • Replace the side panel, plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
12. Find the defective part:
  • With the power cord disconnected, remove the case or side panel.
  • Disconnect all power cable connectors from their connectors on the motherboard and from the back of internal devices (the back of drives). Make sure to label or remember where each cable connects for future reference.
  • Replace the side panel, plug in the power cord, and examine the light on the back of the power supply:

13. If the LED is on solid and is not flashing, the power supply is probably good and the problem is most likely caused by a defective component (processor, memory, PCI card) or a defective motherboard. Have the computer serviced, or remove the components and replace them, one at a time, to find and replace the defective component.

14. If the LED is still flashing (it should not flash with all connectors removed), plug the power cable into a different power outlet that is known to be good. If the LED still flashes, the power supply should be replaced.

15. If the LED light is now off, plug the power cable into a different power outlet that is known to be good. If the LED stays off, the power supply should be replaced.

NOTE: If an electrical storm or power surge has recently occurred, then it is more likely that the power supply, the modem, or motherboard is damaged and requires replacement.

Apr 11, 2009 | HP Pavilion a340n (DQ099AABA) PC Desktop

1 Answer

CPU doesn't turn on!!


    • Power supply light on or flashes Perform the following steps, in order, until power is restored or it is determined that there is a hardware failure: CAUTION: This product contains components that are easily damaged by ElectroStatic Discharge (ESD). To reduce the chance of ESD damage, work over a non-carpeted floor, use a static dissipative work surface (like a conductive foam pad), and wear an ESD wrist strap that is connected to a grounded surface, like the metal frame of a PC.
      1. Disconnect everything from the computer, including the power cord.
      2. With the power cord disconnected , press the power button on the front of the computer for five seconds. Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps. NOTE: If the power supply fan makes an inconsistent grinding sound or stops and starts erratically, replace the power supply
      3. With the power cord removed, flip the red voltage selector switch to the opposite position. Wait about five seconds, and then switch the red voltage selector switch back to its original location. Ensure that the voltage selector switch is on the correct setting, 115V for North America. Performing this step ensures that the voltage switch is engaged and set correctly for your country/region. Figure 4: Voltage selector switch c00517964.jpg Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
      4. Plug a lamp into the same outlet to see if the wall outlet has power. Try the computer in a different outlet in order to eliminate the outlet as a possible source of the issue. Test both to see if the wall outlets have power.
      5. Remove all extension cords, power strips, surge protectors and any converters that remove ground. Plug the power cable directly to the wall outlet. Test for power. If this fixes the issue, find the device that is causing the issue and do not use it. NOTE: If you find the device that was causing the problem was a surge protector, resetting a breaker or fuse on the surge protector may fix the issue.
      6. Remove all attached devices except for keyboard, mouse, and monitor.
      7. Remove any internal component that was recently added, such as video card, memory, CD, DVD, and hard drives. An added device may take more power than the power supply is rated for. If the problem goes away when the component is removed, the only option is to upgrade the power supply to power supply with a higher wattage rating.
      8. Check the power switch:
        1. With the power cord disconnected, press the power button on the front of the PC. The button should release easily and not stick in the socket.
          • If the button sticks, it should be replaced or serviced.
          • If the power button does not stick and appears to be functioning, continue using these steps.
        2. With the power cord disconnected, remove the case or side panel.
        3. Follow the wires from the power button on the front of the computer to their connection on the motherboard.
        4. Look at the power switch cables connected to the motherboard. If the cable has become disconnected, connect the power switch cable connector to the connector on the motherboard. Figure 5: Power switch connector on Motherboard c00517968.jpg
        5. Replace the side panel, plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
      9. Find the defective part:
        1. With the power cord disconnected, remove the case or side panel.
        2. Disconnect all power cable connectors from their connectors on the motherboard and from the back of internal devices (the back of drives). Make sure to label or remember where each cable connects for future reference. Figure 6: Example of common power connections c00540428.jpg
        3. Replace the side panel, plug in the power cord, and examine the light on the back of the power supply:
          • If the LED is on solid and is not flashing, the power supply is probably good and the problem is most likely caused by a defective component (processor, memory, PCI card) or a defective motherboard. Have the computer serviced, or remove the components and replace them, one at a time, to find and replace the defective component.
          • If the LED is still flashing (it should not flash with all connectors removed), plug the power cable into a different power outlet that is known to be good. If the LED still flashes, the power supply should be replaced.
          • If the LED light is now off, plug the power cable into a different power outlet that is known to be good. If the LED stays off, the power supply should be replaced.
          NOTE: If an electrical storm or power surge has recently occurred, then it is more likely that the power supply, the modem, or motherboard is damaged and requires replacement. If the power supply was damaged due to power outage or storm, this may not be covered under the "act of nature" policy in the warranty statement. Refer to the warranty statement that came with your computer for more information.

Jun 20, 2008 | PC Desktops

1 Answer

Mother board


Oh thats easy.!. Well here we go: First you need a screwdriver, and a calm hand and patience; then we can start...

  1. Power off your computer
  2. Disconnect all cabling at the back of the computer. Maybe you want to note which cable goes where so that later it is easier for you to put back the cables.
  3. Open your computer case (the one that is opposite of the motherboard.
  4. Now you can either use a "digital camera" ro assist you; so you make pictures of the board configurations, or you can make drawings to guide you (You probably want to put a new motheroard into the PC so you also want to know where the cables will go right ???
  5. Disconnect your cables from your motherboard that come from your power supply. Also disconnect the wires going to your drives ( CD-ROM, DVD) that come from the Power supply.
  6. Now disconnect your Data cables ( IDE or SATA cables) that run from your CD-ROM / DVD and hard drives. Just remember their configeration.
  7. Now, disconnect the other cables, mainly audio, cpu fan cable, chassis fan cable and audio drive through cables and any other cables attached to your MB.
  8. Next up we have the removal of devices that are direclty attached to your MB. Remove the RAM (Do not touch the RAM on the chips, rather hold it at the sides), remove all add in PCI cards like network card,graphics card etc and put them in seperate anti-static containers
  9. Now its time to get the proc: Remove the heatsink+fan by unscrewing it from the MB; there must be four screws around the MB. If you have removed the Heatsinkwithfan, you will see the proc. There must be either a little switch, a screw or lever to "release the proc" from its "socket" otherwise you will damage your proc and or your motherboard. If you have released the lever, you can remove the proc. lay it somewhere, so that its pins or chips lie down.
  10. Check if there are addional devices that need to be removed.
  11. Next, unscrew the MB from the casing, There should be about 6-12 screws on the MB.
  12. All done: All you need to do now is remove the motherboard slowly from its rest, take it out and put it somewhere safe
  13. All done
Next up would be: How do I install a motherboard.

Kind Regards,
Dominik

Apr 15, 2008 | PC Desktops

Not finding what you are looking for?
PC Desktops Logo

Related Topics:

23 people viewed this question

Ask a Question

Usually answered in minutes!

Top Compaq PC Desktops Experts

joecoolvette
joecoolvette

Level 3 Expert

5660 Answers

Michael Thomas
Michael Thomas

Level 3 Expert

3051 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Are you a Compaq PC Desktop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...