Question about Antec TruePower 2.0 550W 24/20pin nVidia SLI Certified Power Supply (TP2550) Power Supply

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Computer won't start

I have an Antec TP-2550 power supply in my computer and currently my computer will not start. The green LED on the motherboard is lit up. I've recycled the power switch numerous times, removed the CMOS battery-held the power swith for 30 secs-nothing, removed all cards, installed them one at a time while cycling power each time-nothing. Checked all connections-good. Checked RAM-good. I'm LOST! I did confirm the electrical outlet is good also. Computer was working fine until yesterday. I did lose my LED display where the LED and power/reset switch are located.

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The power supply is fried partially, or the motherboard went poof.

Posted on Dec 21, 2008

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Posted on Jan 02, 2017

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Hi, in Antec 300watt power supply there is 3 cables or input or current 220volt. The cables are Black, Green and white. Which one is earth, which on is live(positive) and which one is negative?


For 120 volt operation use
black for the hot, White for the natural, Green for earth ground.
For 240 volt operation use;

Black and White for the 240 volt and Green for earth ground.
Black is generally designated as the "Hot" or "positive" .
You must make sure the switch on the power supply is set for the voltage you are using. ie: 120/240

Dec 15, 2014 | Antec Computers & Internet

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Antec smps or corsair smps to buy


I love Corsair power supplies, but in this case I would go with the Antec TruePower TP-II 430. That particular Antec model is the best in it's class.

May 22, 2012 | Antec TruePower TP-II 430 (761345234306)...

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LEDs on motherboard light up but computer won't start


It still may be dead. Go here and get a PSU tester:

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=-1&IsNodeId=1&Description=psu%20tester&bop=And&Order=REVIEWS&PageSize=20

Apr 24, 2012 | Antec : True430 430W P4 ATX Power Supply...

1 Answer

Computer will not start. No fans, hard drive or monitor motion at all. But, a green light on my motherboard blinks.


Out university has hhad a failure rate on antec 450w psu of 40-50% over 4 years (total number of pc:s with this psu was approx. 300). Check your motherboard with a known-to-be-good power supply.

Feb 17, 2011 | Antec Phantom 500 500W ATX Power Supply...

1 Answer

Replaced my Antec True 380S power supply with an Antec SL450 power supply (Antec box with Intel D875PBZ motherboard). I reconnected the new power connectors to the peripherals (correctly, I believe) and...


Thoughts: There are two connections from the power supply to the motherboard. One has 24 pins and the other has 4. Make sure they both are correctly (and fully) inserted.
Try powering the computer on with all the devices disconnected (hard drive, CD, etc).

var fctb_tool=null; function FCTB_Init_15e8cfb4d7a84105bf2a8d1b62aaa04e(t) { fctb_tool=t; start(fctb_tool); } var fctb_tool=null; function FCTB_Init_1c3c34bdb69a4e1f8440979fca0d4587(t) { fctb_tool=t; start(fctb_tool); }

Jan 29, 2011 | Computers & Internet

1 Answer

I am trying to hook up an antec ar300 power supply to the outlet that lets it be plugged into the wall. there are three wires ... green white and black... i can not figure out which one is positive which...


The green is ground. There is no "positive" and "negative" because the current in the outlet is alternating (AC). They are called "Live" and "Neutral". The Neutral i safe to touch, the Live is deadly. There is no difference how to connect them - in both ways the power supply will work.

Aug 07, 2010 | Antec AR300 300-Watt Power Supply

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My computer just died the morning. I removed the


red- +5v
yellow- +12v
orange - +3.3
black- 0v
blue- -12v
white - -5v
green - ps-on(+5v)
gray- power good(+5v)
purple- stand by (+5v)
disconnect smps from motherboard give the power to smps and short green and black wires and measure the above voltages

Mar 19, 2010 | Antec SmartPower 2 SP400 400-Watt Power...

1 Answer

Antec 430w power supply won't turn on


if when you try to turn on youre computer the coolers are spinning for a short while as the computer would start and than they turn off, than it has a problem with the AC/DC diode transformer. There ast=re 4 to 8 diodes in there in parralel with asa many capacitors witch are transforming alternative curent from the secundary winding in direct current. In this case replace the diodes with ones with the same technical specs. If the computer won't even try to start check for brohen resistors ( or safety fuses.. the same thing because any resistor is a safety fuse ) or broken capacitors ) they are broken if they are blackened. The resistors can be checked with an Ohmmeter ( if theyr impedance is null or infinite they are broken ) the capacitors can be checked in the same way with a multimeeter ( if theyr capacity is 0 microFarads they are broken, or you could check them by applying to every one of them a closed circuit with a low voltage light bulb as the ones in small flash lights and a AA or AAA battery... if the light bulb turns on then the capacitor is broken). if none of these are the problems than check the PowerGood Signal or PGS. It is carryed usualy on a grey or green wire from the power supply to the motherboard trought the ATX connector. You can find the color coding for the wires on the case of the power supply (RED-+5v YELLOW +12v Orange +3.3v etc.). If the PGS wire is severed the computer will fail to start. Replace the PGS wire to solve the problem. Eventually check for any loose wires in the power supply because they can lead to shorts or to non functionality. Be shure to check first the capacitors that modulate the direct courrent in the power supply. if those are broken the power supply will fail to function. The destruction of those capacitors can be caused by using innapropriate voltage instead of 220v 110v or the other way. This thing is controled by a switch on the back of the power supplu located usually under the power cord insertion slot.

Jun 13, 2009 | Antec TruePower TP-II 430 (761345234306)...

1 Answer

No Power


take off the hard drive and the meories. fire it up. if it comes up , replace the item you taken off one at a time. you will find the porblem.

Oct 16, 2008 | Antec SP450 450W SmartPower ATX 2.0 20/24...

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Jan 23, 2017 | AVG Computers & Internet

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