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Replacing powerman fsp300-60gt with astec atx93-3405 115/230 power supply units

Do the units have to have all the screw holes used to close it up and for mounting to create a ground?I removed a power supply unit and installed a working one .However the working one wont start this pc, the working pwrspply has shorter cables it is hooked up but have not mounted it to the frame it yet because of the shorter cables.A green light came on inside the pc but thats it. No lights on outside indicating it was on.MY question being will the powersupply work as intended without being mounted to the frame,does this mounting cause a needed ground?
THANK YOU
Steve replacing powerman fsp300-60gt with astec atx93-3405

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  • twomany Apr 25, 2008

    thank you, im assuming the powerman is bad because nothing comes on when it is installed. i tried it on the pc the astec came from and nothing at all. bad powersupply huh?

    thanks for the info,very helpful

  • twomany Apr 25, 2008

    one more ? at compared to atx powersupplyunit

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The power supply doesn't need to be mounted to anything. It's self contained. The replacement doesn't have enough juice:
Sparkle FSP300-60GT = 300w
atx93-3405 = 90w
No way is the Astec going to run that PC. In fact, there are very few that it will.
You will have to get a 300w or higher power supply for this to work.

Posted on Apr 25, 2008

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My hp mini tower will not restart


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If your prw supply tests OK remove any cards you have and try turing it on with no cards. If it powers on, add the cards back one at a time until it won't power on and that card is bad. Normally this would be a modem card that connects to a phone line.
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Tip

How to replace a computer's power supply


The power supply is one of the most common components to fail inside a desktop computer. If you don't mind turning a screwdriver, you can replace a bad power supply yourself and save on repair costs.

Before purchasing a replacement power supply:

- Make sure to get a power supply that is rated for at least the same wattage as your current power supply.
- Verify that the new power supply has all of the necessary connectors that your current one has. You can either check this visually by looking at the connectors that you have, or by making sure your computer is listed as one of the models that the new power supply is compatible with.
- Make sure the new power supply will fit inside your computer's case. (If the new power supply is compatible with your computer, that won't be a concern.)

To install the new power supply:

- Turn your computer off and unplug it from its power source.
- Unplug all of the cables leading from your computer, including the power cable.
- Open the computer's case. (If you're not sure how to do this, you can probably look it up online. Most computers either have screws in the back that come out, a side panel that slides off, or they open up like a clamshell.)
- Disconnect all of the cables leading from your power supply. Note what component each connector plugs into. You should have connectors for your fan(s), hard drive(s), optical and/or floppy drive(s), motherboard (may be one or two connectors), and the front power switch.
- Unscrew the power supply from the system case and remove it.
- Set the new power supply in the case facing the same way as the old power supply and screw it in.
- Attach all of the connectors. (You may have more connectors than components, but make sure each component that was connected before is connected again now.)
- Close the system case and reattach any screws.
- Plug the power cable into the power supply and then into the wall outlet.
- Reattach all other cables.
- Make sure the power switch on the back of the power supply is on.
- Make sure the voltage switch on the back of the power supply is set to the correct voltage (115 volts in the United States).
- Turn on the computer and verify that it boots up correctly.

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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.
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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

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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.

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145 Watt power supply with the old style AT motherboard power cable connectors. (2 Each)

http://www.playtool.com/pages/psuconnectors/connectors.html#oldpc

I just put Astec SA147-3506 in my browser search bar, and came up with a number of search hits. Prices ranged from $50 to $170!

And it's a 145 Watt power supply! Astec is a cheap quality power supply manufacturer, to boot!

You know, there is a way to use a newer reliable power supply, and the AT power supply motherboard connectors, off of the power supply you have.

It's not for the squeamish, but can be done.

The power wires are removed from the ATX power supply motherboard cable connector, of the new power supply, and inserted into the AT power supply connectors.
(ATX 12V power supply is the newer one. AT power wires removed from the P8, and P9 connectors of your old power supply)

Interested?

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