My power supply tester says -5 volt is bad Tags: Power Supplies Components Last response: March 24, 2012 4:54 PM in Components Share izdale March 24, 2012 12:47:57 PM Hello, my power supply testers say the negative 5 is not working on the psu the psu maker said it isn't used and not needed is this for real? all 10 say no -5 tried 3 differant testers!!! More about : power supply tester volt bad delluser1 a c 243 ) Power supply March 24, 2012 2:25:41 PM -5v is no longer part of the ATX spec and was optional for quite a few years, take a look at your psu label, does it claim to have a -5v rail ? Look at the 20/24 pin connector, is there a pin missing ? m 0 l ko888 a c 1200 ) Power supply March 24, 2012 4:54:27 PM January, 2002 is when the -5V specification was removed from the ATX12V Power Supply Design Guide. The -5V rail was used for old-school floppy disk drive controllers and some ISA bus cards. m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedConnecting power supply tester with some cables still connected to pc Forum SolvedSo I got a power supply tester Forum SolvedPower Supply Tester - SATA power readings - Is PSU good? Forum Is there an In-Line Power Supply Tester out there? Forum Power supply tester not rated at 1KW? Forum Need to get a power supply tester Forum SolvedPower Supply Tester Recommendation - Thanks. Forum Bad volts??? Bad power supply??? Forum SolvedPower Supply Tester Results Confusing Forum Does the OCZ Game Xstream 700 w power supply out put 43 amps on a 12 volt rail? Forum SolvedAustrailian volt power supply with canadian bought hardware Forum [Solved] Power Supply tester Forum Help Reading Power Supply Tester Result Forum Power supply tester failing psu Forum Power Supply Tester Forum Power Supply Tester? Forum SolvedPower Supply Testers Forum Power Supply Tester Forum SolvedToo big a power supply bad for system? Forum SolvedDoes my power supply have enough watts, volts, or amps to power my computer? Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !