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 | E-mail me updates | Report abuse Register or log in to remove delluser1 Power supply Master 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 ? | Report abuse ko888 Power supply Master 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. | Report abuse Ask the community Publish Tom's Hardware>Forum>Components>My power supply tester says -5 volt is bad> Related ressources: ForumPower Supply Tester ForumHelp Reading Power Supply Tester Result ForumPower Supply Tester Results Confusing ForumPSU TESTER ? PG LIGHT ForumComputer won't turn on. Power supply is okay. Is the motherboard bad ? ForumIs this Power Supply enought? PLS help :S (Pictures) ForumPower supply tester failing psu ForumIs it my power supply again? ForumBad Corsair CMPSU-550VX power supply ? ForumQuestion about what my PSU tester is telling me... ForumBad volts??? Bad power supply ??? ForumPower Supply Finally Failed ForumBad Power Supply ?? ForumIs my power supply bad , or is my battery just dying? ForumComputer Power Supplies - A Guide ForumBest Cpu cooler for ~40 ForumPower Supply LED? ForumSudden loss of power to monitor ForumPower Supply Help Forum[Solved] Thermaltake Power Supply Compatibility More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !