PSU coil whine and fan not spinning

[Snapcrackl3pop9]

i'm not sure if this is the right type of thread as i did not see one for PSU.
Hey i need to some expert help with this PSU i have its an Eagle Tech Voltas ET-PSVT500. This is going to be weird to explain but i cut the molex connectors off the PSU a long time ago to power a car amp to drive 2 150Watt subs for my surround sound. While i was watching 2fast2furious the subs stopped and i walked over to the PSU and the fan wasnt spinning. So i took it to the garage cleaned all the dust out of it and plugged it in to make sure it still worked without it being connected to the amp and the fan was spinning very slow, so i thought to myself the power supply still worked. Well i plugged it back into the amp and now i have a coil whine and no fan spin. i did spin the fan by hand while the PSU was off thinking maybe its stuck and it spun smoothly, i then turned the PSU on the fan spun very slowly at first then stopped. every time i turn the PSU i hear a coil whine. Should i throw it away and get a slightly more power PSU or is it safe to use still? If i have to throw it out and get a new one what is the cheapest 500watts or more PSU some of you would recommend? Thanks in advance

*update I realize a name brand would be better than off brand. I'm not looking for the best PSU i'm just looking for one that will drive the subs.

 

[GhislainG]

If it doesn't provide enough power, then you need a new one. Are you using only one or both 12V rails? One is 12A and the other is 14A; it's way below what a good 500W PSU can provide. A PSU like this one is good for your requirements: http://www.newegg.com/Product/Product.aspx?Item=N82E16817438015 It provides up to 34A on the 12V rail.

 

[Snapcrackl3pop9]

If it doesn't provide enough power, then you need a new one. Are you using only one or both 12V rails? One is 12A and the other is 14A; it's way below what a good 500W PSU can provide. A PSU like this one is good for your requirements: http://www.newegg.com/Product/Product.aspx?Item=N82E16817438015 It provides up to 34A on the 12V rail.

I'm not actually sure how many rails I'm using. I'm using the yellow and black wires from all the molex connectors as well the sata power connectors. https://drive.google.com/file/d/0B7QI3OTqKWsBRmZGYVF4emdoUG8/view?usp=sharing
https://drive.google.com/file/d/0B7QI3OTqKWsBVjJlUldmdVFnZkk/view?usp=sharing

those are the pictures of the PSU.

I was also looking at maybe getting this one. http://www.amazon.com/dp/B0058FAYQ2/?tag=pcpapi-20

or this one http://www.bestbuy.com/site/thermaltake-tr2-600nl2nc-atx12v-eps12v-power-supply/5381884.p?id=1218635882854&skuId=5381884

 

[GhislainG]

Yellow is +12V and black is ground. It looks like you connected all yellow wires together to get a total of 26A, but that isn't recommended when using a multi-rail PSU; there's a reason why they are split. Buying a single rail PSU would be much better. I wouldn't recommend the PSUs you linked since you really need a single rail.

http://www.amazon.com/EVGA-80PLUS-Bronze-Certified-100-B1-0500-KR/dp/B00DGHKK7M/ref=sr_1_8?s=pc&ie=UTF8&qid=1423344191&sr=1-8 40A on a single 12V rail and inexpensive.

 

[Snapcrackl3pop9]

Yellow is +12V and black is ground. It looks like you connected all yellow wires together to get a total of 26A, but that isn't recommended when using a multi-rail PSU; there's a reason why they are split. Buying a single rail PSU would be much better. I wouldn't recommend the PSUs you linked since you really need a single rail.

http://www.amazon.com/EVGA-80PLUS-Bronze-Certified-100-B1-0500-KR/dp/B00DGHKK7M/ref=sr_1_8?s=pc&ie=UTF8&qid=1423344191&sr=1-8 40A on a single 12V rail and inexpensive.

The reason i connected all the yellow is they were heating up and melting when the subwoofers needed more power. The first time i had this set up i have one yellow and one black.
As you can tell i didn't put any thought into this at all. i didn't realize multie-rail would be a problem. The night before i was watching fast and furious at the same volume as i was when it "blew". what doesnt make any sense to me is that before i watched the movies i had the subs +5dbs louder than they we're when they blew. You'd think that they would have blew the power supply earlier. Right? or am i wrong again? Maybe this was a over time thing and the constant bass drew too much from the power supply. Now could this have been avoided if i had a battery between the power supply and the amp? having the PSU charge the battery and the battery power the amp. I've had the setup since early summer 2014 no problems except the molex wire melting the coating on it.

So with the single rail I would be able to clip all the ends of the yellow wires and not repeat this again?

It also looks like the link you posted is a multie-rail.

 

[GhislainG]

Yes you can connect all yellow wires together, but make sure they are welded to a large enough connector. Since it worked with a single wire, then I'd presume it didn't draw more than 14A (the max on the best rail). The reason the wire melted is because it can't handle that much power. If you check a PSU like the one that I suggested, there are 4 yellow wires for the CPU and 8 yellow wires for the GPU. What are the specs of your amplifier?

Edit: The link that I posted is single rail (40A). If it was multi-rail, then the label would show how many amps are available from each rail.

 

[Snapcrackl3pop9]

Yes you can connect all yellow wires together, but make sure they are welded to a large enough connector. Since it worked with a single wire, then I'd presume it didn't draw more than 14A (the max on the best rail). The reason the wire melted is because it can't handle that much power. If you check a PSU like the one that I suggested, there are 4 yellow wires for the CPU and 8 yellow wires for the GPU. What are the specs of your amplifier?

Edit: The link that I posted is single rail (40A). If it was multi-rail, then the label would show how many amps are available from each rail.

http://www.amazon.com/Performance-Teknique-ICBM-772-Amplifier-Electronics/dp/B0007ZNQDG#productDetails
this is the amplifier i have. i know its 800watts the the powersupply was underpowered. One of my subs is 150watts while the other is 125 watts so i total of 275 drawn from the psu if i'm thinking thats how it works. these are just subs i had lying around the house.

Also none of these i had bought. My brother gave me the amp and the PSU since he didnt need them anymore.

 

[GhislainG]

According to http://www.newegg.com/Product/Product.aspx?Item=9SIA0ZA08W1269 it's 400W max. You should be fine with a PSU that provides 40A on the 12V rail.

 

[Snapcrackl3pop9]

According to http://www.newegg.com/Product/Product.aspx?Item=9SIA0ZA08W1269 it's 400W max. You should be fine with a PSU that provides 40A on the 12V rail.

so 500watts should be enough? i thought the amp was 800watts not 400watts.

 

[GhislainG]

It says 800W, but it doesn't output more than 400W. Will you run it at full power? A PSU's total power is meaningless; you need enough power on the 12V rail. Your old 500W PSU could provide 26A on the 12V rails; the one that I suggested provides 40A. If you want more power, then consider a more powerful version available on the same page; the EVGA Supernova 850 B2 will provide 70A on the 12V rail. More expensive modular PSU are useless to you since you'll solder the 12V wires and the ground wires together.

 

[Snapcrackl3pop9]

It says 800W, but it doesn't output more than 400W. Will you run it at full power? A PSU's total power is meaningless; you need enough power on the 12V rail. Your old 500W PSU could provide 26A on the 12V rails; the one that I suggested provides 40A. If you want more power, then consider a more powerful version available on the same page; the EVGA Supernova 850 B2 will provide 70A on the 12V rail. More expensive modular PSU are useless to you since you'll solder the 12V wires and the ground wires together.

So amps is what im looking for over wattage? correct? right now i have 2 subs one is 150watts and the other is 125watts so a total of 275watts of 400 being used. but lets just say id like it to run full power id need an 800watts PSU or more amps. My electricity knowledge isnt that great. I thought since the input was 800watts the output would be the same. i believe some amps might have the same output as input but i might be wrong. So amps is more important here or do i need a good mix of amps volts and watts? Lets say i have a PSU that has a single 12volt rail outputting 40amps and the wattage is 250watts the amplifier would still drive the sub woofers? Sorry for the lack of knowledge of all this.

 

[GhislainG]

Watts = Voltage * Amperes

Since you already know the voltage is 12V, you can easily calculate the required amps for a given power output, e.g., 800W / 12V = 67A You would need a EVGA SuperNOVA 850 B2 or similar PSU. There will always be losses, but if it worked with a 26A PSU, you probably don't need a 70A PSU. I presume your neighbours live far enough from your place if you plan on using it at its maximum power.

 

[Snapcrackl3pop9]

Watts = Voltage * Amperes

Since you already know the voltage is 12V, you can easily calculate the required amps for a given power output, e.g., 800W / 12V = 67A You would need a EVGA SuperNOVA 850 B2 or similar PSU. There will always be losses, but if it worked with a 26A PSU, you probably don't need a 70A PSU. I presume your neighbours live far enough from your place if you plan on using it at its maximum power.

Wow that clears a lot up. Thanks for the help. You saved me a lot of money.