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Can you connect 2 powersupply units together (in parallel) to increase there output.
Bassicly i need around 250W PSU but it needs to run from a 12v dc supply the bigest 12v dc-dc psu i can get is the M2-ATX 160W.
Could 2 of these be joined together to give a 320W output i know the curretn draw would be high but i've allowed for a 50amp 12v supply.

Any ideas?

2007-12-14 04:36:28 · 12 answers · asked by jbenny1 1 in Computers & Internet Hardware Other - Hardware

I can't get a bigger PSU the biggest incar (running from 12v supply) is 250W and this is only 60% efficent where as the 2 160W units i'm looking at are 97% meaning i can run the pc for longer on a smaller battery.

2007-12-14 05:51:36 · update #1

12 answers

NO trying to join 2 PSU's in parallel will result in a short cicuit, and either a HUGE BANG or fire.

Buy a bigger PSU that does what you need !

2007-12-14 04:39:35 · answer #1 · answered by stu_the_kilted_scot 7 · 1 1

NO, (unless the manufacturer specifically states that you can chain them) it might permanently damage the supplies, it is hard to know without knowing the internals of the power supply. The problem here is that if one supply output has a slightly higher voltage than the other it will drive current backwards into the weaker supply since by definition voltage supplies in parallel have the same voltage. Also with smoking stuff at these current levels I would be concerned about fires.
There is no way around--bigger power supply or reduce your power consumption.

2007-12-14 13:29:57 · answer #2 · answered by Anonymous · 0 0

You shouldn't, BUT

You can use one to power the hard drive(s), CD/DVD drive(s) and any other things, then use the other to power the motherboard and graphics.

I did this and it worked, BUT I only did this as a test. It gets messy trying to remember which to power up first.

I'm not sure why you can't go to a higher watt PSU. Even if you installed a trillion watt power supply, your PC is still only going to use only so much. If it uses 150 watts, it will still use 150 watts regardless how big the power supply is.

IMHO.

2007-12-14 05:09:43 · answer #3 · answered by waltzme2heaven 5 · 0 0

No you cant, sorry. What you could do is get a larger psu and an invertor that will up the wattage of your 12v supply to your requirements. do a google search for invertors and youll see what i mean

2007-12-14 05:26:59 · answer #4 · answered by Anonymous · 0 0

Technically that would work as long as you were in parallel. It would only change the voltage if they were in series. The voltage draw would then go inversely with the resistance. Just be sure you don't short anything out then you would fry both power supplies.

2007-12-14 04:42:31 · answer #5 · answered by whenindoubt_get_a_bigger_hammer 3 · 0 1

Well, that all depends on the intended use of the power supplies.

If they are simply going to be installed in a computer, you could use one to power the motherboard and use the other one to power the hard drives, optical drives and anything else.

If you had something else in mind, i would suggest asking in the engineering section.

2007-12-14 04:42:22 · answer #6 · answered by Bjorn 7 · 1 1

no ya can't.. don't be dangerous..


http://www.ebuyer.com/product/119227

I use one of them.. 600 watt...

besides you can only connect it to 1 power socket..

it's not like when you run a bunch of car batteries in a circuit.

2007-12-14 04:43:37 · answer #7 · answered by junglejungle 7 · 0 0

Don't. You'll get short circuit. It's not like a dry cell.

2007-12-14 05:21:49 · answer #8 · answered by louie0894 2 · 0 0

Check this link out.
http://www.overclock.net/faqs/15751-info-can-i-use-two-power.html

2007-12-15 05:24:28 · answer #9 · answered by a_mav_erick 1 · 0 0

Don't event ry it, you will fry your computer and likely burn your house down.

2007-12-14 04:38:45 · answer #10 · answered by rollnpc 4 · 2 0

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