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I,ve installed the new motherboard into the case. All the cables are in the correct places but when i turn the computer on the fan is spinning but the sceen is blank.

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Check your ram clean it,clen processor case and also check all connection.of m.bord to device.
put away cmos for 15 minutes and reattach it.
then start pc.

Posted on Apr 01, 2008

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How to install a power supply


WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. http://www.kitchentablecomputers.com/static.php - rules Unplug all electronic cords connected to the computer. At no time during the installation should any cords be connected to the computer. Remove the screws holding the computer cover case, and remove the cover case. Locate the computer power supply box, which looks like a large box out of which a bundle of wires run and connects to the power cord jack on the outside of the computer case. Unplug the power cables from the internal devices connected to it. Be careful not to damage any of the sensitive control boards or devices inside the computer, and be certain to remember--write it down if you need to--what devices will need reconnecting to the new power supply when you finish the installation. Unscrew the power supply from the inside of the computer case and remove it. Check the original power supply's red voltage switch for the correct setting. It should read 120 or 240 if you live within the United States. Confirm this setting as the correct voltage setting for your power outlets. Make sure your new power supply gets set to the correct voltage setting before you install it. If it cannot be set to the correct voltage, do not proceed with the installation or you may damage your computer. Return the new power supply and buy one that is compatible with the voltage requirements. Install the new power supply, reattach the screws that will hold it in the proper place inside the computer. Reattach the power cables that come from the new power supply to the devices that were connected to the old power supply. Make sure all of these connections are firmly in place before you turn the computer back on. Reattach the computer power cables and all the cords connected to the computer during normal operation, but do not close the computer case yet. Keep your hands clear of the inside of the computer case as you attach power cords and peripheral devices. Turn the computer on and observe the performance of the computer without touching anything inside. Do all the computer fans function normally? Does the computer operate as well as or better than before? If you feel that the computer behaves normally and you do not encounter any problems, turn the computer off, remove all the power cords and peripheral cables once more, and close the computer case. Then reattach the power cords and peripheral cables and begin using the computer. Check for errors if you encountered any problems starting the computer or if it would not start at all, unplug all the power cords and computer cables connected to the computer and look inside. Make sure that you connected all the correct power cables inside the computer securely and did not miss any. If you have confirmed this and the computer still doesn't start or operate normally, call your computer manufacturer or a professional computer repair shop for assistance completing the installation http://www.youtube.com/watch?v=xvClS_M-09o&feature=watch_response_rev watch video http://www.youtube.com/watch?v=s0udZ0Ky4Pk Hope this helps.

Jan 03, 2013 | PC Desktops

Tip

How to repair Computer Fan


<p>1. Remove the mini-tower computer cord and unplug the power. Disconnect the cable from the back of the computer for a note in which they were set to be fast to restore.<br /> <p><br /> <p>2. Unplug the connector on the back of the computer. Tighten the screws on the back of the computer, back up the side with a screwdriver. Slide the computer case and put it out of your way.<br /> <p><br /> <p>3. Locate the fan in the box near the back and then connect the power cord where it is on the motherboard. Unplug the fan motherboard manual. Remove the four screws holding the fan on the bottom of the box with a screwdriver to secure.<br /> <p><br /> <p>4. Remove the PC case fan and set aside. Turn the fan of the new mini-tower in the back of the cabinet with screws and plugs wire connector on the motherboard.<br /> <p><br /> <p>5. Place the rear plate side of the computer and secure it with screws. Connect the power cord to power on the back of the case and connect the cable to the computer case.<br /> <p><br /> <p>6. Connect the power cable from the mini-tower outlet and turn on the computer.<br />

on Jun 21, 2011 | PC Desktops

2 Answers

Do not know how to connect power supply


WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL.

http://www.kitchentablecomputers.com/static.php - rules


Unplug all electronic cords connected to the computer.

At no time during the installation should any cords be connected to the computer.

Remove the screws holding the computer cover case, and remove the cover case.


Locate the computer power supply box, which looks like a large box out of which a bundle of wires run and connects to the power cord jack on the outside of the computer case.


Unplug the power cables from the internal devices connected to it.

Be careful not to damage any of the sensitive control boards or devices inside the computer, and be certain to remember--write it down if you need to--what devices will need reconnecting to the new power supply when you finish the installation.


Unscrew the power supply from the inside of the computer case and remove it. Check the original power supply's red voltage switch for the correct setting.

It should read 120 or 240 if you live within the United States.


Confirm this setting as the correct voltage setting for your power outlets.

Make sure your new power supply gets set to the correct voltage setting before you install it.


If it cannot be set to the correct voltage, do not proceed with the installation or you may damage your computer.

Return the new power supply and buy one that is compatible with the voltage requirements.


Install the new power supply, reattach the screws that will hold it in the proper place inside the computer.

Reattach the power cables that come from the new power supply to the devices that were connected to the old power supply.


Make sure all of these connections are firmly in place before you turn the computer back on.


Reattach the computer power cables and all the cords connected to the computer during normal operation, but do not close the computer case yet.


Keep your hands clear of the inside of the computer case as you attach power cords and peripheral devices.


Turn the computer on and observe the performance of the computer without touching anything inside.

Do all the computer fans function normally?

Does the computer operate as well as or better than before?


If you feel that the computer behaves normally and you do not encounter any problems, turn the computer off, remove all the power cords and peripheral cables once more, and close the computer case.


Then reattach the power cords and peripheral cables and begin using the computer.


Check for errors if you encountered any problems starting the computer or if it would not start at all, unplug all the power cords and computer cables connected to the computer and look inside.

Make sure that you connected all the correct power cables inside the computer securely and did not miss any.


If you have confirmed this and the computer still doesn't start or operate normally, call your computer manufacturer or a professional computer repair shop for assistance completing the installation


http://www.youtube.com/watch?v=xvClS_M-09o&feature=watch_response_rev

watch video


hope this helps




Oct 10, 2012 | PC Desktops

2 Answers

The 945GCT-M3 motherboard wireing diagram for the power sw and power led


power connecter has totally 9 pins on the board but actually we have to use only 8 pins please refer the attached image
2_27_2012_5_02_17_am.jpg

if you have further any doubts post me

Feb 26, 2012 | E-Machines PC Desktops

1 Answer

How to replace the motherboard in a Compaq D510 computer


The Compaq D510 desktop computer uses a U-ATX size motherboard that is smaller than the standard ATX size. If the motherboard on your Compaq computer has stopped working or you want to upgrade to a different motherboard with different expansion slots you can open the case and replace the motherboard.

to replace the motherboard, just follow these steps:

1
  • Double click on the "Smart Cover" icon on the desktop. Enter in the Smart Cover lock code if you have set one up and click on "Unlock" to disengage the hardware lock that prevents the case panel from being opened.

  • 2

    Click on the "Start" button at the bottom toolbar of the desktop and choose "Shut Down." Unplug all of the cables from the back of the computer once it has finished powering down.

  • 3

    Set the Compaq computer case on its side and remove the two screws connected to the top and bottom ends of the case panel. Slide the panel to the left and pull it directly off the case.

  • 4

    Disconnect the SATA cables running from the power supply, drive bays and processor fan to the motherboard. Remove the screws holding any expansion cards you may have previously installed into the AGP ports on the lower right side of the motherboard and then pull the cards out.

  • 5

    Pull back the clamp holding the processor fan on. Pull the fan and then the processor off of the motherboard. Pull off the RAM modules from the motherboard.

  • 6

    Remove the screws holding the motherboard into place and pull the entire motherboard directly out of the case. Check the orientation of the replacement motherboard and make sure the USB ports and AGP expansion card slots are facing towards the back of the case. Lay the new motherboard down into the case onto the mounting screws sticking out of the bottom panel.

  • 7

    Place the processor back into its socket on the motherboard and connect the fan on top. Snap back on the fan clamp. Place the RAM modules back into their slots. Re-connect all of the SATA cables to the drive bays and power supply.

  • 8

    Set the side panel back onto the case and re-connect the case screws. Connect all of the cables into the back of the case and power the computer back on. Wait for the operating system to load to make sure the motherboard is working properly.

  • 9

    Navigate back to the Smart Cover program, enter in the password, and press the "Lock" button.

  • Dec 06, 2011 | Compaq PC Desktops

    2 Answers

    How do you replace the cooling fan of the Dell dimension 2400 desktop computer?


    To replace the cooling fan follow these steps:-


    You will notice that replacing the fan is not specifically mentioned, but it should be fairly easy.


    Open the case as noted in the instructions, follow the power wire from the fan to the motherboard, then unplug the connector from the motherboard, and remove the assembly.


    Some of the earlier fan shrouds just lift up and out, but others have tabs to hold them in.


    Regarding the fan, there might be two release levers accessible from inside the case, but the one by the PSU can be hard to reach.


    It might easier to push the retaining tabs, in from outside, using a small screwdriver, pen or whatever.


    The installation of the new fan, is just a matter of fixing the new one in place and connecting the cable.

    Good luck, and do rate the solution if got help

    Dec 02, 2010 | Dell Dimension 2400 PC Desktop

    1 Answer

    Sister, Son and I all have the same model Sony Desk Top Computer. Model VGC RB57GY. Computers are overheating and showing overheating error and shutting down. Mine now is shutting down after even a...


    May I ask what Temperature you are referring to, and where you are looking for the temperature at/in?
    In BIOS?
    Do you have external software that reads these temps?

    Motherboard temperature?
    CPU (Processor) temperature?
    ATI Radeon X300 graphics card GPU temperature?
    (Graphics Processing Unit)

    CPU temp:
    What Processor is installed, and what is the maximum thermal limit for it?

    Intel Pentium D Model 820.

    http://ark.intel.com/Product.aspx?id=27512

    64.1 degrees Centigrade, or 147.38 degrees Fahrenheit.

    Checked the thermal paste to see if it has dried up?
    Even if it hasn't, cleaning the bottom of the Heatsink, and the top of the Processor's case, and applying fresh, new, thermal paste is the way to go.
    After a certain amount of time, thermal paste loses it's thermal conductive properties.

    If it is a thermal pad, remove it, fly it out the window. They're junk.
    Use fresh new thermal paste instead.
    (Be sure to observe Anti-Static Precautions)

    Fans are all working fine.
    According to whom?
    The tech?

    Not doubting your abilities for one second. DO doubt the many 'techs' who profess so.

    Computer case open, observe the Processor Fan. Ensure that is is spinning at all times, and not intermittently.
    Also ensure that the fan is spinning at the correct RPM's.
    (Revolutions Per Minute)

    Same with the computer case fan's, Front and Rear.

    Computer clean inside?
    1) Processor fan?

    2) Heatsink?

    3) The area of the motherboard you can see with the computer case open?

    4) The area Behind the motherboard, that you Cannot readily see, without removing the motherboard?

    5) The ATI Radeon X300 graphics card?

    6) The Heatsink on the Northbridge chipset?

    Check the cable connection of the Processor fan to the motherboard, and the computer case fans, IF, they (Case fans), have three wires, AND are connected to the motherboard.

    One wire is for Power
    One wire is for Ground
    One wire is for a sensor that detects when the fan should speed up.

    Processor fan spin freely? Computer case fans? Feel like they/it, may have a bad bearing?

    Let's diagnose together, and see if we can solve this.
    If all of the above reads like a foreign language to you, I will explain step by step, and guide you.

    Aug 16, 2010 | Sony VAIO VGC-RB57GY PC Desktop

    1 Answer

    Just brought new memory for my acer aspire sa90 desktop,now my computer doesn't seem to turn on


    i assume computer was starting correctly before? this is older computer and it is using sdram memory, locket on them sometime do not clip in correctly.

    1. switch off computer
    2. remove power cord
    3. remove side wall
    4. remove sdram
    5. check sdram orientation and type, if they correctly align with registering notches
    6. release lockets to max, (outward from slot)
    7. re-insert correctly oriented sdram till lockets close into sdram stick (you may give them bit "help" to close in position)
    8. re-connect power
    9. start computer

    if copmuter start normally, that meant tha tyou fixed the problem, if not, switch computer off and remove power cable, check motherboard power cable insertion, and repower again.

    if computer start, lose cable was the problem.

    if computer still do not start, remove new memory and re-nstall old one, if computer start, new memory will be a culprit.

    if computer no fan "jig" and no light blink, remove all power supply cables from motherboard and connect in it's place new power supply, to exclude power supply problem.

    if computer start with new power supply, old power supply will be the problem,

    if computer do not start, and no joy with checking, but fan is running, including on the processor, this will indicate either, motherboard or processor died... if that is the case further testing will be required to determine which is exact cause. as in home situation there are usually no motherboard testing equipment, you need to go to more difficult path of changing the processor, checking video and haveing second computer on which you can test all of that...

    replacement board for that processor on ebay cost from about $0.99 plus postage. if you need any further advice, please re-post adn if i am on line today, i will provide you with further procedure how to test your video, motherboard and processor.

    if you find my advice useful, please do not hesitate to leave your comment and vote 4 for me, thanx!

    Aug 01, 2010 | Acer PC Desktops

    2 Answers

    Truth be told my friend took it apart w/out the service manual and put it back together and now it overheats. The original problem is the techs at Staples said my mouse went crazy and still is.


    This would be a hard one to trouble shoot without the computer in front of you. Depending on the manufacturer of the motherboard there is usually two or three fan power plugs on it. One is marked CPU and is usually on the top edge of the motherboard, the CPU fan has to be plugged in there, the others are usualy marked CHAS, SYS or MB for the accessory fans in the front of the computer, if it has one, and sometimes another for a fan in the rear of the computer. These plugs usually have three pins each. two wires for power for the fan and an RPM wire for the motherboard speed readout on the computer screen. As for the mouse going crazy, try and uninstall it and then reinstall the drivers. This will sometimes correct the problem, or buy a new mouse, they are cheep. If that doesn't cure the problem then there is something more seriously wrong with the system. Good Luck, RAC

    Apr 14, 2009 | PC Desktops

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