Question Two Power Units destroyed by one Mobile Operator?
Question Two Power Units destroyed by one Mobile Operator?
Hi everyone. I hope this isn't the wrong place, but if that's not the case, feel free to move it.
I'm facing a bit of a problem here. Last Monday I did a clean-up on my computer. Removed the GPU, cleaned dust with a brush, reassembled everything, and tried to power it on—nothing happened. I started removing components to check for any signs of life, but still nothing. Then I took out the PSU to test if there was any functionality. Jumped pins 16 and 17—no fan spinning, no sounds, and no power on other pins, so I concluded that that PSU was dead and replaced it with a new one. I installed the new one in the chassis, reconnected everything, and... it was again dead.
At this stage, I felt pretty frustrated but remained determined to try different approaches to rule out other causes. I removed the new PSU from the chassis and performed a jump test by shorting pins 16 and 17—still nothing. Then I tried shorting pins 16 and 15, but also no result. Pins 16 and 24 didn't work either.
At that point, I thought it might be a rare or unusual case of a dead PSU on arrival. I considered the possibility that I might have shorted the wrong pins or that my motherboard was faulty, so I looked up instructions online. One guide suggested shorting pins 16 and 3, which worked—so I figured it came back to life.
I then tried connecting a fan to a Molex header and kept the fan on while testing pins 16 and 17, but again, nothing happened. After reconnecting the PSU with the fan connected to a header, there was still no sign of life.
Now I'm unsure: either my motherboard failed to power any PSUs or my motherboard is dead, and I discarded it without reason.
I really appreciate anyone who can help me understand what's going on. Should I send the PSU back for repair (RMA) because it's definitely dead, or should I keep it and get a new one?
Sorry for the delay! A strange thing occurred. Earlier today, while using a multimeter to check if a capacitor failed or if there were shorts, I followed some guidance and connected the PSU to the motherboard, shorted the pins, and... everything came back to work.
Now I'm even more puzzled than before.