An expert who has achieved level 3 by getting 1000 points
An expert that got 20 achievements.
An expert that got 10 achievements.
An expert that got 5 achievements.
Re: How do I remove the case to get at the power supply?
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.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
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.
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.
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
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
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.
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.
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.
If this is an Atx computer Just unplug it from the external power cord remove the case unplug every thing and remove the screws that hold the power supply in the case. To install just reverse process. If you need more detail let me know.
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.
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.
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.