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It's used to power the reverse flux capacitors when your reactor core overheats.
I can confirm that this is correct.
Plus it runs the coffee pot
Negative?
12V DC is used for system components, i.e: hard drive, motherboard
5V DC is USB 1.0/2.0 voltage.
negative
It's probably the polarity. Negative and positive poles. Like a car battery the red or black wire, or the + and - of a battery.
I was going to say negative ground, but by your screenshot, + is the feed, and - is what's being fed.
Not negative voltage as much as currently utilized voltage.
+5V to is getting 5.05V properly. 2.09V is being used.
+12V is being fed 11.97V, of which 10.80V are being used.
As per wiki: The −12 V rail was used primarily to provide the negative supply voltage to the RS-232 serial ports. A -5 rail was provided for peripherals on the ISA bus, but was not used by the motherboard.
http://en.wikipedia.org/wiki/Power_supply_unit_(computer)
But, I don't fully understand the modern use.
The ATX standard was developed when motherboards came with RS-232 ports and ISA busses, so it's still a hold-over from those days.
http://en.wikipedia.org/wiki/ATX
Tom's Hardware used to enjoy writing that the "ATX standard is outdated and obsolete" without ever giving a reason, and this was in ~2003. Haven't been to their site in ages, so uncertain if they still spew basura.
The reason I am asking is I have a friend that keeps having her comp "die" and then be able to reboot a few minutes later, and In that past seeing voltages that low would signal a bad PSU.
ground. black wires. hardly see -5 mostly use in comm. port such as usb. db9 db15 db21/25 rs232 mostly use a comb or -5/-12
Sounds like overheating to me...
But don't leave them running too long. Such powerful cooling components do pose a risk of ice age initiation.
They're not in use on modern computers.
This thread is literally so boring I am going to go outside and ignore the internet for the rest of the day.