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How do I open the case on a CTX desktop computer? All I see are the screws for the power supply.

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Check the front face plate and you should be able to pull off the face plate and the screws should be located behind that.

Posted on Sep 12, 2009

Testimonial: "Thanks you very much, I will give it a try, I just did not want to damage the case since it isn't a typical setup."

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I don't know about CTX, however, some cases I have dealt with require pulling the front plastic bezel (cover) off - sometimes there's a plastic release underneath the front edge you pull outwards to remove the cover. After that, there is a screw at the top center or screws on the sides to remove to get at the insides.

Posted on Sep 12, 2009

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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

How to remove fan from gateway dx4200


for replacing the fan you must open computer case unplug all power cords, remove 4 screws near the rear fan and pull out the power supply from the top interior. then you have at leat more 4 screws to remove the power supply cover out. then you will see the other 4 screws to remove the fan. if you just simply want to clean the fan open the computer case go to outside, take an air compressor and blow air into the fan and at the rear od the power supply on the air intake and you are done.

Aug 26, 2012 | Gateway DX4200-09 PC Desktop

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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 | Computers & Internet

1 Answer

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

2 Answers

I wntt to access the power supply fan on my cq2009f desktop. I can remove one side and the front but it appears that I need to remove the rest of the case and this looks like it is riveted to the chassis....


If you want to remove / replace the fan you will need to completely remove the power supply box from the computer case.

There should be 4 screws on the back panel of the case holding the power supply box in place.

Unplug the computer power cord and monitor cable from the back.

Open the computer case and disconnect all the cables from the power supply to the components and motherboard (be sure to keep track of what goes where).

Hold / support the power supply box inside the case while you remove the four screws from the back so it doesn't fall down and break something on your motherboard.

Once you have the power supply box out of the computer case, you will need to remove the 4 additional screws holding down the power supply box cover. Once the cover is removed you will see and be able to remove the power supply circuit board and the fan if you want.

Good luck and please comment back if this was helpful.

Feb 03, 2011 | Computers & Internet

1 Answer

I need to change my power supply in my HP Pavilion a705w, and the screws are on the back, the 4 main to the supply, but I'm on the other side of the power supply and I can't get in there to change it. How...


There should be at least 4 more larger screws, maybe even "thumb screws", that will have to be removed as well. These screws hold the sides of the case on. Try removing those and sliding the sides back to open up the case

Jul 19, 2010 | HP Pavilion a705w PC Desktop

1 Answer

Hi we have a ctx monitor PV720A that stays on for a couple of seconds then goes black


glenn659, possible cause is bad internal switch-mode-power-supply" failure or SMPS is detecting something wrong with lcd cold-cathode-fluorescent-tube backlighting circuit, (INVERTER) and it goes into SHUTDOWN mode to try and prevent a catastrophic failure from occuring. Glenn, visit youtube, search for video clips on LCD monitor disassembly and also also research BAD Capacitors or Swollen Capacitors and also the "WHY DO LCD MONITORS FAIL PREMATURELY" Certainly your's will be in the top two causes! Did you do the flashlight test with your monitor "on" and connected to a known good PC with the WIN-desktop screen showing. Even though screen is BLACK it might still show the desktop when you hold the light about 1" from screen. Some will, some won't depends on condition of the power supply. In any case get back to me with your plan of action you intend to take after viewing YOUTUBE stuff. Bye for now. I'm louie12fix on fixya or lmistyrel@aol.com

Oct 02, 2009 | CTX Computers & Internet

1 Answer

Upgrading the power supply for new card evga 9800 gtx+


What kind of help do you need?

Open two screws in back of the computer case, take the side panel out, unscrew old power supply, disconnect the cables also, take the powersupply out, insert new powersupply, screw it in and connect the cables.

surely 500-800W will be enought.
http://www.newegg.com/Store/SubCategory.aspx?SubCategory=58&name=Power-Supplies
Let me know if you need anything else.

Thanks and good luck.
Ekse

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1 Answer

Replacing the powersupply on a Sony VAIO PCV-RS720G desktop


Hi There,

From the looks of things that model will take a standard ATX power supply which would be available from and computer part dealer and ebay etc, get yourself a nice 400w replacement try and get a small form factor one if you can as it will be a tight sqeeze inside the case.

when replacing it you will have to open the case up (get an anti static wristband if you can, and work on a table rather that a carpeted floor) un hook all the connectors the old power supply (one in each drive and there should be 2 in the motherboard) you may have to pull the Dvd rom out slightly to get the new supply in, unscrew the 4 case screws holding the power supply from the back of the case. lift it out then put in the new one, screw it in using the case screws and connect up the internal power cables to the drives motherboard and new graphics card, close the case, plug in and voila

If you get stuck just ask and we will help

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