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Computer Components I have a Hairong ATX-400W power supply in my computer and a component labelled C3 has just burnt out. Can you tell me the specs of this item so as I can source a replacement? Thanks, Murray

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  • Murray Mansfield Oct 07, 2008

    Thanks Lee,

    It is information on a component I need. I realise I can replace it but my philosophy is to repair first, if possible.


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The component, you need to take it with you and show it to someone in electronics repair they can possibly sell you a replacement or direct you to where to get one. I don't have and I don't think there are any service manuals available for computer powersupplys publicly as most people and shops replace them instead of trying to repair.

Posted on Oct 07, 2008

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You can just go to a computer store and get a power supply like this or if you want take the whole power supply with you so you can buy the same one...

Hope that helps........

Posted on Oct 07, 2008

  • Mark Gil
    Mark Gil Oct 07, 2008

    This may help you:



    +5v 20a (red) +3.3v 20A (orange) +12v 10a(yellow) -12v .5A (blue) +5vsb 2a (purple) -5v (white)



    Hope that helps.......

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Is this a component in the power supply itself? If so you will want to just replace the whole power supply it is only about 30$. If you need assistance locating a replacement I would be glad to help. Please take a moment to accept and rate this solution accordingly.
Thanks,
Lee

Posted on Oct 07, 2008

  • Lee A.
    Lee A. Oct 07, 2008

    No matter what your philosophy may be. I don't think it is works in the case of power supply's. Besides their may be other issues, and for the money all the components will be new and under warranty. Also your 400w power supply may be under powering your pc and that could be part of the problem. So for very little you could have a higher watt power supply and time is money and you would spend a lot less time by replacing. I hope you will reconsider your rating and accept and rate the solution appropriately.
    thanks,
    Lee


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When i go to turn on my computer the on button flashes 10 times then quits


A blinking amber color of the Power On LED light indicates a bad Power Supply.
(Weak voltage power rail)

http://support.dell.com/support/edocs/systems/dimE521/en/SM_EN/specs.htm

Scroll down to the bold heading - Controls and Lights.
Look to the right of - Power light

The Power Supply is a 305 Watt unit.
The form factor is ATX.

The ATX form factor designation refers to the size, and shape of the Power Supply's case, and the power cables provided.

Size is approximately 3-1/2 inches Tall, (Height), 6 inches Wide (Width), and 5-1/2 inches Long.
(Length)

Power cables needed are provided with today's offering of ATX power supply's.

This is one example of a Power Supply that will work, and is reliable,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=422169&CatId=5430

If you would like guidance in opening your computer case, following Anti-Static Precautions, and replacing your Power Supply, simply state in a Comment.

Regards,
joecoolvette

[ What causes Power Supply's to fail?

1) Overheating.
Caused by the Power Supply, and inside of computer, is dirty.
Remedy to prevent this is using a can of compressed air for computers, on a regular basis as needed. (Computer unplugged from power, Anti-Static Precautions observed )

2) Low quality hardware components used inside Power Supply.
The weakest link are Electrolytic Capacitors inside the Power Supply.
Some Power Supply manufacturers use low quality Electrolytic Capacitors.

3) Voltage spike
Caused by lightning storm, or possibly utility line construction by the power company, or a brownout.

(Can also be caused by unplugging the power cord AT the Power Supply. { Back of computer where the power cord plugs in} The power cord should ALWAYS be unplugged AT the surge protector, not the Power Supply.

1a) The hardware components inside a computer, and the hardware components inside the Power Supply, are cooled by Air.

If dust, dirt, etc., collects inside these two, the cooling capacity will drop tremendously.

The two components that keep the Power Supply's hardware components cool, are the Heatsink's, and internal Fan.

This shows you an average personal computer Power Supply, and the Heatsink's I referred to,

http://en.wikipedia.org/wiki/Computer_power_supply

Click on the photo to the top right, to enlarge.
Here you will see two Heatsinks. These are the two aluminum objects, that are shaped like a bunch of H's stacked on each other.

One is to the right of the two Electrolytic Capacitors next to each other, { Cylindrical objects with black plastic sleeve on them} The other is to the left of the two round Choke Coils. {Wrapped with Yellow insulation}

General construction of Heatsink is a plate of metal, with tall, thin fins protruding from it.
The plate of metal absorbs heat from whatever object it is placed against, and the tall, thin fins absorb heat from the plate of metal.

The fins then radiate the heat away. Air from the Fan helps to carry heat away from the fins.

If these Heatsinks, and the Fan's blades, center hub, and surrounding cage, {Shroud}, are dirty, the cooling capacity drops tremendously.

Heat = Wasted Energy
The Power Supply strains to keep up with the call for power, but eventually cannot as some of the hardware components inside the Power Supply, have failed )

Nov 10, 2011 | Dell Dimension E521 PC Desktop

1 Answer

When i try to play games i get a message saying acceleration is disabled or not supported by my video card driver. my pc is a L&C computer co, windows 7 64 bit operating system withi gb ram standard...


Check the minimum and the maximum specs of your computer, also do check if the game needs some programs that you have to download first, some games need java and some needs flash, this are fatal components that will keep you from playing if you dont have so better yet check the specs carefully and update this post so i can help you.



Thank you.

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1 Answer

NEED A NEW UNIT OF POWER SUPPLY ATX-400W REV T1


Most computer testing facilities will test your current power supply for free. A replacement is very inexpensive to replace. Bestbuy, MicroCenter, small computer shops and buy replacemnent from Amazon.com, newegg.com.. Just make sure you have the correct information for your replacement. The model number on the power supply would be your best bet in most cases. Good luck and have a great day. I buy power supplies as low as $15 dollars Generic

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1 Answer

Can not get computer to power back up no lights on front o rear just little light on mother board have dell 8400


Bad Power Supply, sscorbett.

Usually you have enough power to light LED lights, (Like the harddrive activity LED light for add-in cards, that you see on the motherboard), and spin fans, but Not enough power to turn the Processor on.

Dell Support >Dimension 8400 > Service Manual

http://support.dell.com/support/edocs/systems/dim8400/SM/index.htm

Technical Overview > System Board Components

http://support.dell.com/support/edocs/systems/dim8400/SM/techov.htm#wp1052739

harddrive activity light for add-in cards (SCSI LED)

The Dimension 8400 comes with an ATX style of Power Supply, that has a maximum rated Wattage of 250 Watts.
1) ALL of the LED lights combined use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts
3) A typical Processor can use 51 to 125 Watts.

Your Power Supply just has enough power to light that LED light.
Weak voltage power rail.
Replace the Power Supply.

[ There are three power rails inside that SMPS.
Switched-Mode Power Supply.

1) The 3.3 Volt power rail
2) The 5 Volt power rail
3) The 12 Volt power rail ]

The ATX form factor for a Power Supply refers to the size, and shape of the case, for one.
Approximately 6 inches Wide, 5.5 inches Long, and 3-1/2 inches Tall.
The ATX power supply case in the Dimension 8400 however, is shorter in length.
It is 4 inches Long. (Depth)

Not an advertisement for the website, nor manufacturer.
Reference for the case size, and power cables needed,

http://www.cputopia.com/hp-400w-dell-dimension-8400.html

Scroll down to see the connectors of the various power cables needed.

You may have a Power Supply with these dimensions, and needed power cables, in an unused computer.
Perhaps someone has upgraded to a better computer, and has an unused computer that you can temporarily borrow the Power Supply for a test unit.

Make sure it has at least 250 Watts (Maximum rated wattage), plus,

1) 20-pin ATX main power cable. (Or a 20 + 4-pin ATX main power cable)

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

[ 20 + 4-pin ATX main power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20plus4 ]

2) 4-pin ATX +12 Volt power cable

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

Plus the various power cables needed for the Harddrive, optical drive/s, and computer case fan/s, if it/they do not connect to the motherboard.

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Replacing the power supply on my acer pc. Liteon model No: ps 5221-06/ where to find it?


Yes,
https://www.pacificgeek.com/product.asp?ID=846862&C=304&S=-1

It's made by Delta for Acer. Model Number is
DPS-220UB A

I know you didn't ask for this information, but I feel compelled to tell you.

I know it's hard finding the right style/shape of power supply to fit in your computer case,.
BUT,

the above power supply is a cheap quality power supply. Anything in power supplies made by Delta is.
(Plus it seems to be the only thing available)

I wish you would consider buying a decent, economical, ATX computer case, and put the hardware components out of your Acer into it.

The reasoning is,
1) There will be more airflow. Airflow, is used to keep the hardware components inside the computer cool.

This increases the lifespan of the hardware components.

2) An ATX style of power supply can be used. The style that approximately 90 percent of personal computers, out there use.

You could buy a power supply for the same amount of money, that would be more Reliable, have more Power, run Quieter due to a larger fan, and has higher quality components inside.

3) Should you wish to add additional harddrives, and optical drives in the future, there will be room.


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1 Answer

Power supply packed i n


Yes, you can safely put in equal or higher. Just make sure it is an ATX and that it is P4 compatible. Most new ones all meet to those specs. Higher is actually better. I would go with a 400w or higher.

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1 Answer

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yes it sounds like the power supply is shot, you can get a replacement at any computer shop for around $40. i would put in a 400w or 450w that way if you add another hard drive or opitcal drive it wont be a strain on the new power supply

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2 Answers

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more than sure if you have replaced the power supply already and the computer still not working,there must be a electrical damage to the board.
it is sure that.but you have to check some other components too seeing that they are stuck in the board,like the procesor and ramm dims or the video card..the electrical charge may have affect them too.
but 1st thing to do is to change the mainboard..
oh by the way...just to be sure..try to make a bios reset..maybe it will work and pull out the ramms from the computer..put them back after...ussualy this works...
good luck and let me know about
bye

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