Question about Alienware PC Systems Alienware True 480 Watt Dual Fan Power Supply HPC-420-302 DF OEM (PSALIEN480W2FAN) Power Supply

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Alienware HPC-420-302 DF power supply died

Computer was running in hybernate mode and suddenly there was a bad smell like burning plastic and then a pop sound as I went to pull the case cover off and inspect. Killed the main switch to the power supply when I heard the pop sound. Pretty sure the power supply is blown. When I turn the master power switch on the power supply on, the LED on the mother board turns on (promising) but no response from the power supply when I press the power button on the front. Can I replace this power supply with any other 480w power supply? Or does it need to be a specific power supply? Alienware website is not much help but will call support tomorrow.

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You can replace the power supply same rating or over. Be sure to check if you have 24pin or 20 pin. If you are running a gaming video card , its better to buy 600watts power supply.

Posted on Jul 24, 2009

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I was burning a movie and my computer flash off than on than shut off.. it spelled like electrical wire burning. now it will not even turn on


Hello,

Sounds like the power supply died. This is where your power cord plugs into the pc. It is a metal box inside the pc. Smell the back of the pc, at the fan opening closest to the power cord. If it smells burnt there, then you need a new power supply.

Hope this helps!

Joe

Apr 08, 2012 | Sony Computers & Internet

1 Answer

My computer was knocked forward it went bang and then smelt of burning - I have been told that it might be the internal powe pack can you help?


If your desktop computer went bang from the back of the computer and the burnt smell comes from the fan grill of the power supply then the switch mode power supply definitely failed. The bang and burning smell was probably one or more of the capacitors that has exploded inside the power supply.
You can replace the switch mode power supply, make sure you purchase one that has the same total wattage or higher wattage.
There is a chance that when the power supply failed it may have caused a voltage spike that could have damaged some other components. You won't know until you replace the faulty power supply.

May 19, 2011 | Computers & Internet

1 Answer

I switched the Pc on after connecting all cables, the monitor didn't come on thats when i found that the power pack must have died as icould smell a bit of burning. the motherboard light is on ( green )...


most power supply units will fit you can get a larger wattage output eg: heavy duty if you have added any more devices to your computer more RAM,a larger hard drive,more cd/dvd drives these added will put a greater need for wattage output on the PSU
you should check all the electrical connections before you make a decision and make sure they are the same as as the ones that you will need to run your computer also
check the measurements inside the frame to make absolutely sure it will fit
you can get lots of PSU

Feb 24, 2011 | Alienware PC Systems Alienware True 480...

2 Answers

I have an old Alienware Hivemind PC circa 03. Power supply is dead. I called the new Alienware A.k.a Dell and they said They didn't sell a replacement part since it is 7 years old. My question what power...


Take your desktop computer (and the dead power-supply) to any computer-store. They can sell you a "generic" power-supply that will be compatible with your original power-supply.

Hint: the smaller the computer-store that you go to, namely a "mom-and-pop" company, the more-likely that they will install it for free, if you buy the new power-supply from them.

Oct 04, 2010 | Alienware PC Systems Alienware True 480...

1 Answer

Alienware aurora desktop with 525 Watt Power Supply was working fine then all of sudden started making a loud noise like it was going into overdrive or something then emitted a horrible like burning...


The switch mode power supply in the desktop computer has failed. Most likely the capacitors in the power has exploded.
You need to open the desktop computer and remove the old power supply and replace it with a new one. Take the old power supply with you to your friendly computer shop and get a replacement power supply with the same wattage or greater wattage.

Jul 25, 2010 | Alienware PC Systems Alienware True 480...

1 Answer

Fans do not come on when plug power cord in


You can get the fan from any other power supply. Try a computer repair shop.

Please don't forget to rate if the answer helps

Oct 14, 2009 | Alienware PC Systems Alienware True 420...

2 Answers

Hi ive got an packard bell with a fsp250-60gen psu in, it started to smell of burn lately, was quite a bit of dust build up, cleaned it all out, but still smelling, isnt gettin hot, is it on its way out??...


The dust could cause the burning smell, if the smell has an electrical smell then most likely the capacitors are leaking in the power supply and about to blow/explode.
Is the power supply come from a desktop computer? If so all ATX switch mode power supplies have standard mounting holes and power connectors.
Take out the old switch mode power supply and take it with you to your friendly computer shop and compare it with a new one. Make sure the wattage rating of the new switch mode power supply is the same or greater than the old switch mode power supply.

Sep 06, 2009 | Computers & Internet

2 Answers

Dell dimension starts up then shuts down


power supply shot
can get power supply from microcenter
http://www.microcenter.com/single_product_results.phtml?product_id=0293459

or take your out REMEMBER where plugs go and buy a new one cheap

Jun 01, 2009 | Dell Dimension 3000 PC Desktop

1 Answer

Burning plastic smell westinghouse hdtv


The problem may cause by the defective transformer on Power supply board. there are 3 transformers on the power supply. http://www.lcdparts.net/LIPSInverterDetail.aspx?InverterOriginal=4H.B0700.051
Please do the vision inspection on power supply, you should be able see the obvious burn on one of these three big transformers.

May 11, 2009 | Westinghouse LTV-32w1 32 in. HD-Ready LCD...

1 Answer

Power supply not working?


To see if power supply works
unplug the psu from the motherboard and drives
then plug the power cord into psu and wall
the fan should come on letting you know that it works.

you can also get a multimeter and check each individual connector on the 20/24 pin connector to motherboard.
check the psu docs for the correct voltages to each pin

If you smelled smoke then chances are that something may have gotten toasted.
remove all expansion cards and try to turn on computer if nothing happens then the motherboard may have gotten toasted.
Check the motherboard and expansion cards along with memory for shorts and burn spots.

A+ Technician

Apr 02, 2009 | HP HEC HP485D 485W ORION HP485D ATX 12V...

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