My uncle, a mainframe guy from the 80s, told me to always check the power supply first.

I spent two hours chasing a weird boot loop on a desktop last week before I finally swapped the PSU. It was a Corsair RM750x that was just barely failing. Anyone have a favorite diagnostic tool for testing them without a spare unit handy?

2 comments

2 Comments

xena_anderson15d ago

That "just barely failing" part is the worst. I had a similar thing with a fan controller that only acted up when the room got warm, which made me doubt the power supply for way too long. Sometimes the problem hides in plain sight.

tylerw9215d ago

A Corsair RMx series failing like that is genuinely surprising, they have such a solid reputation. Your uncle's advice is painfully true, but it's so easy to skip right past it when you're sure it's a software or memory issue. Those barely-there power problems are the absolute worst to track down, they mimic everything else. I just use a cheap multimeter on the standby rail now if I don't have a spare unit, but it's not a perfect test.