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How do I remove the case to get at the power supply?

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Hi Lynne,

I'm not being rude, but I have to ask myself how a person that is unable to open a PC case could expect to be able to fix / replace PC a power supply? Granted some cases are trickier than others.. but anyway, what is the make and model of the PC you're trying to open? Some brands use the same model number / name on "slim form factor", "desktop" and "full size tower" types - so you might want to include that info too.

Posted on Apr 24, 2015

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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

R&R power supply


Remove the upper case, the power supply just snaps into thelower rear of the lower case. Put a screwdriver behind the power supply and spring the lower case away.

DickyO

Sep 24, 2012 | IBM Wheelwriter 30 Typewriter

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 | 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

How do i take the top cover off a emachines t5026?


Hello cw robin, hi, you need to remove the power supply out of the casing. loosen the side cover screw at the back left side. side of, reveals the power supply box, Now remove the 4 screw on the Fan exhaust side. There is a release lever on the bottom of the power supply like a ball shape lock, press it and it releases the power supply box. remove the connections on the motherboards and drives. Power supply out, there are small screw on the power supply box, remove it. open and you have now access to the power supply board.

Dec 06, 2010 | E-Machines Emachine T5026 power supply **...

3 Answers

Replacing the power supply in a Acer Aspire RC500


Replacing power supply is simple.
1. unplug power,monitor,kybrd,mouse,printer...etc.
2. remove cover
3. while hold case unplug power from drives, and motherboard (only those connected to power supply).
4. remove screws attaching power supply to case.
5. remove power supply.
To install new power supply just follow in reverse what you just did to remove it.
Mark

Mar 29, 2009 | Computers & Internet

2 Answers

I am looking for instructions on how to replace my e-machine atx-250-12e power supply connection.


they're pretty much all the same.

open the case. pull the 20/24 pin power plug and optional 4-pin power plug out of the botherboard. Remove power plugs from fans, hard drives, cd drives, etc.

unscrew the four screws anchoring the power supply to the case. Slide out the power supply. Put a new one in it's place, the screw holes will line up. Then reconnect the power cables just like they were when you removed the old one and boot 'er up.

All you have to do is make sure the wattage rating of the power supply is higher or equal to the old one. Your old one is only 250 watts. You will have to search VERY hard to find one that low, so don't worry.

E-machines doesn't make particularely powerful desktops so you won't have compatibility problems. Almost EVERY atx psu on the market will work.

Dec 06, 2008 | Gateway Emachine Bestec ATX-250-12E PS...

1 Answer

I put in a newer and larger power supply and it works alot better.


The power supply is located on the top of your compter tower. You should have a large power cord plugged in to it from the wall. When you open the computer case, it will be at the top and have a bunch of wires running out of it and running to the different drives and motheroard. Removing the power supply is easy. Just remove the wires from the drives and boards and remove the 4 screws to the case and out it comes. I have 450W ATA power supply on my machine and it runs a dual-core and 2 DVD and 250 gb hard drives with out any problems. Most computer stores sell power supplies and offer install if you need it. I live in Canada and I find most power supplies run about $85.00 Remeber more power = more money. You can change the powere supply in about 30 mins and don't rush. Remeber to ground yourself to the computer case and unplug the tower before openning it.

Apr 01, 2008 | HP PAVILION SLIMLINE S7520N AMD Turion 64,...

1 Answer

System will not power on


remove all hard drives,cdroms, floppys ect.
then try powering on if it still doesn't come up
remove all cards from there slots then try powering up
if stall doesn't remove ram, still doesn't try new power supply if still doesn't try new motherboard.

Dec 10, 2007 | RaidMax (668WGP) ATX Case

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