Solved ATX PS turns off when blue(-12V) and red(+5) get loaded Tags: Power Supplies Cameras ATX Power Components Last response: December 3, 2009 6:21 PM in Components Share vivalibre December 3, 2009 3:29:26 PM Hi there, I am using an extra ATX power supply to power some surveillance cameras that need about 17V to run. My problem is that the power supply turns off when I try to power the cameras. I created two rails to power the cameras, one connected to the ATX blue wire (-12V) and the other to red (+5V). A multimeter shows 16V between the two rails -- good. I also tied the green wire to ground so that the power supply will turn on. As soon as I connect even one camera, though, the fan stops on the power supply, and I get no more voltage. I tried connecting a smaller "wall-wart" 17VDC power supply to my rails, and that works fine. So why is my ATX power supply turning off?? -Andrew More about : atx turns blue 12v red loaded Best solution jsc a c 144 ) Power supply December 3, 2009 4:35:22 PM Share Because the -12 volt line generally produces no more than 1 amp. You are overloading it. vivalibre December 3, 2009 6:21:41 PM JSC, I think you're right. I found that the cameras will run okay with just 12V, so using yellow (+12V) and black (0V ground) works too, and that doesn't cause the PS to shut off. Thanks! Can't find your answer ? Ask ! Publish Related resources : ForumBad ATX PS ? Bad RAM? Bad MOBO? ForumScreen turns purple/green/ red ForumComputer boots up to the startup screen, then turns off ForumComputer shuts off randomly, CPU_LED turning red , comp not turning on! ForumComputer turns off then on, No screen after upgrade to new cpu cooler ForumMicro- ATX vs Mini-ITX - help me make some ITX choices ForumMotherboard turns on then off Forumgigabyte GA EP45 Ds3R reboots until PS turned off ForumRadeon 4870, Three red lights, fixed, now won't turn on - $ 5 reward ForumTPU Red Light on ASUS M 5 A99X EVO AM3+ AMD 990X SATA 6Gb/s USB 3.0 ATX Forumcan i test a ATX 2.2 p/s by shorting the power pin? ForumComputer turns off while playing games ForumM2N32-SL Computer turns on for a couple seconds then turns off ForumPC turns off randomly after I cleaned it thoroughly ForumWater-cooling Build Log: Project Red -Chalk ForumMaking Camera Power Supply from ATX PS ForumMaking Camera Power Supply from ATX PS ForumThermaltake 850w PCI-E question Forum[Solved] What happenes when the computer goes to sleep? ForumMouse turns off and on randomly. More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !