+12, -5, = +7. or does it?
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+12, -5, = +7. or does it?
Can someone give a definitive answer to this one please? I do not know enough about electronics to have an opinion either way, but I hear on various forums that by utilising the +12v cable along with a -5 v cable and a ground, you effectively have a +7 volt supply to undervolt fans with, hence slow them down. Is this a fact or wishful thinking?
Re: +12, -5, = +7. or does it?
I you used +12V and -5V lines, you'd get 17V. You need to use the +12V and +5V lines (yellow and red wire respectively).
edit: Here's a link to an old SCR article on the subject.
edit again: There are also plenty of posts on the forum - search for "7V trick" for instance.
edit: Here's a link to an old SCR article on the subject.
edit again: There are also plenty of posts on the forum - search for "7V trick" for instance.
Last edited by Cyäegha on Thu Aug 02, 2012 12:09 pm, edited 1 time in total.
Re: +12, -5, = +7. or does it?
Thanks for that, I will have a look at the link.