Question about Antec AR300 300-Watt Power Supply

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Power supply won't come on, no output of any voltage. LED power indicater on motherboard is on.

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  • 63 Answers

First question: is it a new power supply or existing one?

Then we can progress to some disagnosis.

Posted on Dec 25, 2014

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Posted on Jan 02, 2017

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ginko
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SOURCE: DELL POWER SUPPLY TYPE PS-5201-5D REV.F

230 Watts.
Here are specs and replacement:
230W ATX Power Supply - PS-5201-5D - HP-233SNF ...You can also replace it with a compatible 300 W psu.

Posted on May 27, 2008

  • 6 Answers

SOURCE: Blinking power supply LED

Your power supply is fried. I had the same problem with my Bestec ATX 250 power supply. I fixed the problem by installing the StatTech model: ATXPOWER250. It was easy to install and works well. It is almost identical to the original but more quiet. I got it for $29 at MicroCenter.com. Also at online Newegg.com, Radioshack.com, Provantage.com, June 20,2009

Posted on Jun 20, 2009

  • 468 Answers

SOURCE: get a light on the motherboard and sometime the

Her you have standard voltages for ATX power supply
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Posted on Oct 12, 2009

  • 1027 Answers

SOURCE: Computer does not power up. How do I check for

Check the power switch on the power supply itself.

Posted on Feb 11, 2010

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I tried several different cards but no luck. Cards work ok on other computers.


5V Stand-By Indicator LED
The power supply will always supply a 5V standby voltage to your
motherboard so that it can power on via for example Wake On Lan
technology. This LED shows that your power supply is supplying
this standby voltage to your motherboard.n :D

You may need to replace your power supply, if the LED is flashing, it's not supplying the power the motherboard needs.

[JP-25]

1 2 3 4 5 6 7 8 9
. . . . . . . . .
. . . . . . . .
10 11 12 13 14 15 16 17 18


1] Power Led (+)
2] --
3] Power Led (-)
4] --
5] --
6] Speaker (+)
7] --
8] --
9] Speaker (-)
10] Reset switch
11] Reset switch
12] N/A
13] Power Switch
14] Power Switch
15] ACPI Led (+)
16] ACPI Led (-)
17] HDD Led (+)
18] HDD Led (-)


For future reference you can download your motherboard manual here:
(PDF) Soyo K7VKP2

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the problem is your power supply, since the power supply have differrent output voltage there is 12volts, 3volts and so on. the 12volts output voltage is not giving enough power. you can determine this by detaching the 20pins from your motherboard coming from the power supply then power-on the power supply then use a jumper wire insulated but scraped both ends (conductor visible) then connect it to the green connector and the grey connector if the fan of the power supply doen't rotate then you 12volts output voltage is busted.

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