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How to install a power supply - Computers & Internet

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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.

Posted on Jan 03, 2013

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Connecting power supply to motherboard


Hi There

This guide was developed to instruct readers on the proper procedures for installing a power supply unit (PSU) into a desktop computer case. It includes step-by-step instructions with photographs for the physical installation of the PSU into a computer case.
IMPORTANT: Many name brand manufacturer PCs use specially designed power supplies that have been built specifically for their systems. As a result, it is generally not possible to buy a replacement power supply and install it into these systems. If your power supply is having problems, you will likely need to contact the manufacturer for repairs.
CAUTION: All power supplies contain various capacitors inside of them that retain power even after the power supply had all power turned off. Never open up or insert any metal objects into the vents of the power supply as you can risk electrical shock.
To start with installing a power supply, it is necessary to open up the case. The method for opening the case will vary depending upon its design. Most new cases use either a panel or door while older systems require the whole cover be removed. Be sure to remove any screws fastening the cover to the case and set them aside.
Align the new PSU into place in the case so that the 4 mounting holes align properly. Make sure that any air intake fan on the power supply that resides in the case is facing towards the center of the case and not towards the case cover.
Now comes one of the most difficult portions of the power supply installation. The power supply needs to be held in place while it is fastened to the case with screws. If the case has a shelf ledge that the power supply sits on, it will be easier to balance.
Make sure that the voltage switch on the back of the power supply is set to the proper voltage level for your country. North America and Japan use 110/115v, while Europe and many other countriesuse 220/230v. In most cases the switch will come preset to the voltage settings for your region.
If the computer already has the motherboard installed into it, the power leads from the power supply need to be plugged in. Most modern motherboard use the large ATX power connector that gets plugged into the socket on the motherboard. Some motherboards require an additional amount of power through a 4-pin ATX12V connector. Plug this in if required.
A number of items reside within a computer case that require power from the power supply. The most common device is the various hard drives and CD/DVD drives. Typically these use the 4-pin molex style connector. Locate the appropriate sized power leads and plug them into any devices that require power.
At this point all of the installation and wiring should be completed with the power supply. Replace the computer cover or panel to the case. Fasten the cover or panel with the screws that were previously removed to open the case.

Link with Photo


Dec 12, 2011 | Computers & Internet

1 Answer

When I turn on my computer it runs for a couple of seconds and then stops.


Unplug everything inside the computer, except the motherboard and the front panel power on switch. Power up the computer. If the PS fan continues to run, (power supply doesn't shut down)and the CPU fan runs, then power off the unit and reinstall each device, one at a time, turn the power supply on after each device is installed (and off, before installing the next device).
You can not easily start the power supply if it is not connected to the cpu motherboard.
If the power supply shuts down with only the motherboard attached, then you will need either another power supply, to test the MB, or another MB to test the power supply.
R

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Set up New PC Studio that is NPS then install USB drive


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1 Answer

Powr supply checks out with tester, but when plugged into a BRANDNEW motherboard. Flashes green, Power switch is in and fans are in. Is it possible for P/S to be bad only when drawing from board?


There are many possibilities here. The motherboard could be installed incorrectly causing a short. The motherboard may not support the processor. A hardware device plugged into the motherboard may be shorted. The power supply may be defective under load ( when plugged into everything). No memory is installed on the motherboard. The power supply is too small for the motherboard that was installed. The first thing to check, is to plug in the motherboard connectors only with memory installed then try to power up. If at this point it will not power up, then you have a problem with the power supply or motherboard. If it powers up at this point, then plug in one device at a time starting with the hard drive and try to power up. If it continues to power up, plug in another device. If this process continues work, then you will find that either you have a shorted device or your power supply will not support the motherboard and all of the installed devices. It is also possible at this point that the motherboard is defective, by using more power than it should causing an overload on the power supply with all devices plugged in.

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Blinking power supply LED


Your power supply is fried. I had the same problem with my Bestec ATX 250 power supply. I fixed the problem by installing the StatTech model: ATXPOWER250. It was easy to install and works well. It is almost identical to the original but more quiet. I got it for $29 at MicroCenter.com. Also at online Newegg.com, Radioshack.com, Provantage.com, June 20,2009

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Power supply installation in gateway 610xl


to replace a standard ATX powersupply;

remove left hand side cover (ensure power is disconnected first);
disconnect the 20.24 pin primary power plug (big wide white one plugs directly onto the mainboard, also disconnect the 4 pin AUX power plug, looks just like the other one but is a smaller square shaped plug (older P3 boards will not have this)

disconnect all 4 pin power plugs from hard drives/cd drives and aftermarket fans (if any are installed), disconnect SATA power plugs from any SATA devices installed (flat black plug, 4 wires)

disconnect floppy drive power plug (if app) small while 4 pin power plug, once all of these are disconnected, looking at the rear of the computer there will be 4 screws holding the power supply in place, one screw will be more to the centre slightly to ensure you do not put it in upside down, once you remove those screws the power supply will slide right out.. simply re-do these steps in revers for instaling the new power supply


David

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2 Answers

Power supply


Not sure what you requesting as information but to install a power supply is easy (make sure it's not plugged in obviously). Take off the case...it's right there. Unscrew from the outside to remove and install new. One word of caution...I am not a big fan of E-Machines "past"....motherboards and power supplies were (are?) major failure items with these machines. If you wish to know what supply to use check what you have and then go to pricewatch.com to find one....note, it need not be the same brand (preferable probably) but it does need to have the same dimensions and wattage. Trust this helps...Tango

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