Thread: Voltages????
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Old 25th May, 2003, 12:45 AM
GaulHahn GaulHahn is offline
Join Date: March 2003
Location: Australia
Posts: 42

here you go Postal

some links:

PC Guidel

Power Cooling

Quote :

12 V: This voltage is used on some types of serial port circuits, whose amplifier circuits require both -12V and +12V. It is not needed on some newer systems, and even on older ones not very much is used, because the serial ports require little power. Most power supplies provide it for compatibility with older hardware, but usually with a current limit of less than 1 A.

-5 V: A now archaic voltage, -5 V was used on some of the earliest PCs for floppy controllers and other circuits used by ISA bus cards. It is usually provided, in small quantity (generally less than 1A), for compatibility with older hardware. Some form factor power supplies such as the SFX no longer bother to supply it (systems using the SFX power supply are intended not to have ISA bus slots).

So as I said generally you'll never use these.

Why your getting -7.63 i have no idea! But not an issue i would say.
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