paulperry•5d agoProlific Poster

Had a client's backup drive fail right after I swapped their old UPS

I replaced their 8 year old battery backup with a new one last Tuesday, and the next day their external drive just stopped showing up. Turns out the old UPS was giving dirty power that the drive's power supply had slowly gotten used to. Has anyone else seen a new UPS cause a hidden problem like this?

2 comments

2 Comments

david_henderson65d ago

Actually, the dirty power from the old UPS likely caused the damage over time. The drive's power supply didn't get used to it, it was slowly being stressed. The failure just happened to show up after you removed the bad power source. It's a weird coincidence, but the new unit probably saved the rest of their gear. Makes you wonder how many other parts were on the edge, right?

the_kim5d ago

My old shop had a similar thing happen with a printer. I always figured clean power was just clean power, no downsides. This makes me worry about the other old gear we swapped out over the years.