With This PSU given, which has SEVEN 12v rails with 25Amps on EACH of them, are all 175 Amps going through every different 12v wire (when needed)? The Reason I ask is because a lot of people have been using PSU's to power car amplifiers in their homes and for me, wanting to do the same, I was wondering that say its a 430 watt PSU, its not giving 430 watts on the 12v rail its all the rails in total. So its only giving around 168 watts on the 12v rail. So the PSU in the link at the top, which has 7 12v rails with 25 amps on each of them, would work but only to the extent of 25 amps (using a single rail). What I want to know is how do i get all 175 total amps from all 7 rails to go to my car amp? Are all 175 amps going through every wire that takes it or are there say 25 amps on one molex, and 25 amps on other molex, and then 25 amps on the motherboard connector? So what would the wiring have to be to get all 175 amps going through 2 wires (positive and negative) into the car amplifier? Also to reduce overheating of wires could i take all of the wires that have 12v wires on them clip them all and put them all together at one point at the end? or would the PSU go into protection?
Originally posted by cridaba88: http://www.newegg.com/Product/Product.aspx?Item=N82E16817256054
With This PSU given, which has SEVEN 12v rails with 25Amps on EACH of them, are all 175 Amps going through every different 12v wire (when needed)? The Reason I ask is because a lot of people have been using PSU's to power car amplifiers in their homes and for me, wanting to do the same, I was wondering that say its a 430 watt PSU, its not giving 430 watts on the 12v rail its all the rails in total. So its only giving around 168 watts on the 12v rail. So the PSU in the link at the top, which has 7 12v rails with 25 amps on each of them, would work but only to the extent of 25 amps (using a single rail). What I want to know is how do i get all 175 total amps from all 7 rails to go to my car amp? Are all 175 amps going through every wire that takes it or are there say 25 amps on one molex, and 25 amps on other molex, and then 25 amps on the motherboard connector? So what would the wiring have to be to get all 175 amps going through 2 wires (positive and negative) into the car amplifier? Also to reduce overheating of wires could i take all of the wires that have 12v wires on them clip them all and put them all together at one point at the end? or would the PSU go into protection?
it has 8 12volt rails. one for your peripherals CD-Rom HDD(etc.) one for your Motherboard & CPU, the other 6 are for PCI-E x16 add in cards. its made for SLI and Nvidia are notorious for there dual power scheme.
combining two rails is dangerous, and could cause the power supply to explode.
you want something that has 1 Powerful 12 volt rail. look for a server power supply. servers are normally required to power a lot of Hard Drives, so they would need a powerful 12v rail to power up and maintain more than 12 HDD's.
old power supplies from computers used in the 80's have one hell of a voltage rating. enough to kill you dead, if your feeling lucky.
Something does not add up here...that PSU is rated at 1500W
It claims 7 rails of 12V, at 25A each:
25a x 7=175A
175A x 12V = 2100W
Their rated output is 600W lower than what they claim it can produce...and that is if we ignore the other voltages.
Assuming that it actually put out the rated amperage, and that it did so without burning itself up (which it would), combining the rails is not difficult at all. Just get several large diodes. Use a diode (or several smaller diodes) to connect each rail to your new common rail. There would be a slight voltage drop, but there would still be plenty of voltage for a car amp; they are not very picky about input voltage on those. I think you would be better off using a nice corsair unit...if you still need more power, use a pair of corsair units with LARGE diodes.
