Did my PSU fry my other components? Please Help!

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Bfrancom

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Mar 30, 2013
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Serious answers only, please. So my computer needs about 350w to run stable. My PSU is a 550w logysis. But something about the 12v main rail is 25a (you multiply to voltage on the line times 12) and it gives you the wattage). So it's only giving about 300w. It says the average output is 400w but it can't be because my system isnt running on it. My system is only a few days old (custom build) and now the PSU won't even turn on. It doesn't do anything when I hit the power. About 5-10 seconds later I head a screech that sound like if you hit the flash button on a disposable camera, or if a hard drive was unplugged in use (I have an ssd and no DVD drive so it can't be that shutting on and off). It almost sounds like some electrical thing. The reason I think it blew is because it has a switch to make it 115v or 230v. I live in North America so it should be set to 115v I think. It still failed on 115v. Then I switched it to 230v to see if it would help, it did nothing. Now when it shut off it won't turn back on. Either way it would shut off, and on both voltages it would turn back on but this time it won't. It's failed at least 10 times, each on 115 and 230v. Did the circuit get overloaded? Also dont say something couldnbe overheating, bcause i know nothing is. ive been checking the temps. Thanks for reading if anyone did. Please help. Link to PSU http://www.newegg.com/Product/Product.aspx?Item=N82E16817170028

Did it fry something else? I know the PSU is fired. specs are

-FX 6300
-SAPPHIRE 7770
-HP 120GB SSD
-200mm fan
-4x120mm fans
-Gigabyte GA-970A-DS3
-Stock Heatsink
-8GB RAM
 
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ThomasJ93

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Apr 10, 2013
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It's possible it fried other components, but it's hard to say for sure if you don't try it with a new PSU. You'll need a new one anyway, so why not get one and test it? Most good PSUs these days don't even have a voltage switch anymore. It will automatically detect if you need 115V or 230V.
 
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Nikolay Savov

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Apr 9, 2013
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Change you PSU for test
If you fix the problem replace you PSU
If the problem is still there maybe you Mobo is the cause.

You system is less than 300 W you sould be fine with 500 and more ....
Component Estimated Wattage
AMD FX-6300 3.5GHz 6-Core Processor 11W - 95W
Gigabyte GA-970A-D3 ATX AM3+ Motherboard 17W - 70W
AMD Entertainment Edition 8GB (1 x 8GB) DDR3-1333 Memory 9W - 9W
Asus Radeon HD 7770 GHz Edition 1GB Video Card 20W - 80W
Total: 57W - 254W
 
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Bfrancom

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This system is using more around 300w (I used a calculator myself). The PSU could hardly do that. It said its 550w but the average output on the 12v line is 25a which is low. I doubt it's the mobo. It was running strong and there's no sign of damage on it. The PSU was 20 bucks so I think it's that. I ordered a corsiar cx600 600w. It's 80 bronze so it should be fine.
 
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ThomasJ93

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I'm not saying that the Logisys PSU would provide enough power. Not at all actually. Logisys is a horrible brand when it comes to power supplies. I'm just saying that you don't need a 600W Corsair and that a power supply of about 350-400W from a good brand would've been plenty.
 
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Nikolay Savov

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Agree !

And just FYI :
"(I used a calculator myself). The PSU could hardly do that. It said its 550w but the average output on the 12v line is 25a which is low"
There are 5 V and 3,3 V count that you must add to the Total Wattage you know :)
In other word 550 W = 12V * X [A] + 5V* X [A] + 3,3 V * X[A]

And i like to have 30 -40 % more power than needed - the PSU run`s cooler under load ...
 
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