Thread
Test LC Power Supply?
Warning-Warning-Warning Forum newbie question!
How do I test an LC power supply outside of the computer? I've searched this forum, and didn't find a definitive answer, but I suspect I sorta did.
My understanding is that the black leads are ground, yellow +12 volt, orange +5 volt, and blue(?) -5 volt. I also read that the power supply was "smart" in that if it detected a load when switched on, would then provide power. Did I get that all correct?
So,
I wired nutted the yellow, orange and black (no connection for the blue) to a harness connector on a hard drive (for the load), confirmed the voltage needed for each pin and switched on the power supply. Just a slight clicking sound from the power supply. If I got all of the above correct, I believe the hard drive should have spun up. If so, then the power supply is toast?
Thanks!
Grampa
How do I test an LC power supply outside of the computer? I've searched this forum, and didn't find a definitive answer, but I suspect I sorta did.
My understanding is that the black leads are ground, yellow +12 volt, orange +5 volt, and blue(?) -5 volt. I also read that the power supply was "smart" in that if it detected a load when switched on, would then provide power. Did I get that all correct?
So,
I wired nutted the yellow, orange and black (no connection for the blue) to a harness connector on a hard drive (for the load), confirmed the voltage needed for each pin and switched on the power supply. Just a slight clicking sound from the power supply. If I got all of the above correct, I believe the hard drive should have spun up. If so, then the power supply is toast?
Thanks!
Grampa
Hi Grampa. 
My LC's power supply has the same symptoms you've mentioned, the clicking sound. It's most likely toast.
My LC's power supply has the same symptoms you've mentioned, the clicking sound. It's most likely toast.