Question about Antec SP450 450W SmartPower ATX 2.0 20/24 Pin ATX Connector Power Supply (SP450) (PS450ANSP450) Power Supply

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My Antec SP450 has some issues, its +5VSB ranges between 4.9V and HH on my testing instrument, the other reading are +5.1V, -11.9V, 12.5V1, 12.6V2, 3.4V and 370mS. Would you say whether this PSU has had it and should be replaced?

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What is 370mS?

Posted on Dec 25, 2014

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Hi...ihave antec sp-450 smart power and it have 2 fans.only one is working when i pluged it ...is it a problam or the ather fan starts to work later????


If the fan that is working is the outside fan on the power supply and if your case is well ventillated there wont be a problem. If not then buy a new power supply.

Jun 17, 2012 | Antec SP450 450W SmartPower ATX 2.0 20/24...

1 Answer

Main fan is off not warking


Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

Apr 25, 2011 | Antec SP450 450W SmartPower ATX 2.0 20/24...

1 Answer

Turn on the computer nothing happen then smell burning from the power supply! turned off right away.


That power supply is probably dead. try your motherboard witha known-to-be-good power supply to determine if your system has survived. IN my experience the failrate for antec sp450 watt psu is close to 40% over 4 years (300 pc:s at university), so there is a high probability that your psu is unrecoverable.

Feb 13, 2011 | Antec SP-400 400-Watt Power Supply

1 Answer

5VSB IS MISSINIG FROM MOTHERBOARD CONECTOR . COMPUTER WILL NOT BOOT WHEN POWER SWITCH ON FRONT PANEL IDEPRESSED . NEED A SCHEMATIC AND COMPONENT DIAGRAM FOR THIS UNIT .


specs are here
http://www.antec.com/specs/SP500_spe.html
This includes 5VSB
There is more info here
http://www.newegg.com/Product/Product.aspx?Item=N82E16817103937
the ATX spec and 20+4 connector pinout (wich locates 5VSB got you) can be found in the Wikipedia article (section 3 in http://en.wikipedia.org/wiki/ATX#ATX_power_supply_revisions has pin out details for ATX rev 2.1).
If your psu is missing 5VSB it is defective and should be returned to manufacturer or retailer if within warranty period. See testing psu articles also.

Jan 19, 2011 | Antec SmartPower SP-500 (ASKU37152)...

1 Answer

What causes the temp reading of LL.L?


The SkyScan temperatures only register a certain range, typically -4F to 158F. If it is below this range, it will read LL.L and above it will read HH.H. However, I have been having trouble with mine reading the correct temp, so I often get very whacky numbers, and LL.L is becoming more frequent. Hope that helps!

Dec 30, 2010 | SkyScan 86742 Digital Atomic Wall Clock

1 Answer

5 yr old Asus with antec 450 power supply has had NO issues ever. Now I need to turn the ps off and on 2 or 3 times before the start switch at the front of the comp will work.... once it boots up...


there are several filter capacitors inside the power supply that are defective and /or are changing value. this accounts for the high pitch squeel you are hearing...the only REAL way to test for these problems are with an esr meter or lcr bridge, but you can physically look at the capacitors and see if any of them are bulged up or leaking., my suggestion is to go to tigerdirect.com and get another 450W or better PS...they are pretty cheap there

Dec 27, 2010 | Antec SP450 450W SmartPower ATX 2.0 20/24...

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...

2 Answers

DOA


Sounds like you need a new power supply for your computer.

Jul 19, 2008 | Antec SP450 450W SmartPower ATX 2.0 20/24...

3 Answers

No Power


Hi, remove your power supply from the case, onen it and remove all dust from it. Inside you should see a glass fuse, if tis is blown replace it and all should be ok.
If the fuse is intact test it with a multi meter, [this can also be done across a light and wires with a battery] If you find the fuse intact and still have no power then replace the PSU with any simalar watt unit. The only brand I would advise against is Ritmo as these are not a high quality PSU. There are quite a range of brand names which can be purchased on Ebay.
Goodluck mistyman

Feb 27, 2008 | Antec SP450 450W SmartPower ATX 2.0 20/24...

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