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 Post subject: 2 PSUs in One PC?
PostPosted: Tue Feb 22, 2005 1:26 pm 
8086
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How would i use 2 PSUs in one pc? I would like to know because i already maxed mine out and i have a spare one lying around. Does anyone have any links or info on going about this job? I know it is possible cuz i have seen some systems with it but the manufacturer did it.


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 Post subject:
PostPosted: Tue Feb 22, 2005 2:23 pm 
Smithfield
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I'd rather just get a nice big new one but here goes:

Put the new PSU in the bottom of your case (assuming there's room) and use it to power hard drives, optical drives, video cards, fans etc... anything other than the motherboard. This will lighten the load on the primary PSU and *sort of* balance the work between the two.


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 Post subject:
PostPosted: Tue Feb 22, 2005 2:52 pm 
8086
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yea but how will i turn thePSU on? would i follow the test PSU guide and then connect it to my hard disks?


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 Post subject:
PostPosted: Tue Feb 22, 2005 3:21 pm 
7yrs+11,000 Posts
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Location: The kitten above is not on fire.
look in the MRL for my tutorial


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 Post subject:
PostPosted: Tue Feb 22, 2005 4:43 pm 
8086
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so basically i make the test psu here: http://www.maximumpc.com/forum/viewtopic.php?t=4090

but how would a hard disk power it up? like do i have to use a cdrom drive?


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 Post subject:
PostPosted: Tue Feb 22, 2005 4:59 pm 
7yrs+11,000 Posts
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Location: The kitten above is not on fire.
It would power up normally. All as that gives you the ability to do is use it without the mobo. IF you just hook up a hd and cdrom drive it shouldent catch fire.


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 Post subject:
PostPosted: Tue Feb 22, 2005 5:18 pm 
8086
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I just realized that the PSU i have is ATX so i found a perfect guide here:

http://www.casemodgod.com/mod_test_psu.htm

But my PSU isnt switched so would it just be on when ever i connect thge power to the wall or when ever i power up an opticall device? or would it even start up at all?


BTW, is it just me or are the forums really slow all of the sudden?


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 Post subject:
PostPosted: Wed Feb 23, 2005 6:24 am 
Thoroughbred
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dsforsaken wrote:
I just realized that the PSU i have is ATX so i found a perfect guide here:

http://www.casemodgod.com/mod_test_psu.htm

But my PSU isnt switched so would it just be on when ever i connect thge power to the wall or when ever i power up an opticall device? or would it even start up at all?


BTW, is it just me or are the forums really slow all of the sudden?


If you twist the green and black wires together as suggested in the linked guide, the PSU will always be on.

If you (instead) splice the green wire of the PSU to the green wire of the other PSU, your MOBO will turn them both on and off with the power switch.

You will want to power your MOBO and all fans with one PSU. You don't want your MOBO powered with one, and fans with the other. If the one controlling the fans should fail, your MOBO would overheat.


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