Date: Tue, 17 Nov 2009 12:48:06 -0800 From: Chuck Swiger <cswiger@mac.com> To: Polytropon <freebsd@edvax.de> Cc: =?ISO-8859-1?Q?D=E1nielisz_L=E1szl=F3?= <laszlo_danielisz@yahoo.com>, FreeBSD - <freebsd-questions@freebsd.org> Subject: Re: hdd voltage Message-ID: <B768E1B1-0966-4506-8176-07257621B67A@mac.com> In-Reply-To: <20091117212810.70a99d48.freebsd@edvax.de> References: <151588.70409.qm@web30808.mail.mud.yahoo.com> <20091117194218.GA32781@slackbox.xs4all.nl> <549041.44342.qm@web30807.mail.mud.yahoo.com> <20091117212810.70a99d48.freebsd@edvax.de>
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Hi-- On Nov 17, 2009, at 12:28 PM, Polytropon wrote: > V12N : +0.97 <----- Reference -12.0 Volt > V50N : +1.99 <----- Seems to be reference -5.0 Volt, but looks > strange > > As you can see in relation to your output, your board seems > to put other values on the "default" named output lines, e. g. > V12N = +1.46 V which can't be right, but "V12N" seems to be > some chosen name for one of the data output lines, nothing > more; it could be called "Bob", too. :-) V12N is pin 14 of the 20-pin ATX connector, and is supposed to be the blue wire, running at -12 VDC. It was used by ISA cards and an optional part of PCI bus interface, but is not normally used by anything. V50N is / was pin 20 of the ATX connector, running at -5 VDC, but has been removed since ~2003; the -5V rail was used ISA cards, but is now obsolete, and pin 20 is prohibited from being present in modern PSUs. Regards, -- -Chuck
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