Would it be safe to put 6.3V capacitors on 5V rails in PC power supplies?
I read somewhere that in PC supplies one should use 10V caps on 5V rails.
And for example, National Semiconductor's datasheet for switching regulators states:
Are there any voltage spikes that can harm the capacitors in the long run?
I bought some FM Panasonics to replace the existing caps but they are 6.3V rated unlike the original ones which are 10V.
Also, Panasonics have much lower esr than the caps I used before so I hope replacing won't cause instability.
I read somewhere that in PC supplies one should use 10V caps on 5V rails.
And for example, National Semiconductor's datasheet for switching regulators states:
The capacitor's voltage rating should be at least 1.5 times greater than the output voltage.
I bought some FM Panasonics to replace the existing caps but they are 6.3V rated unlike the original ones which are 10V.
Also, Panasonics have much lower esr than the caps I used before so I hope replacing won't cause instability.
But today, I’m making an exception here. Why? No idea. Perhaps only because the repair details are still “fresh” in my head… which is ironic, given this is a 16 year old monitor that hardly anyone will care about today. It is new to me, though. 
I picked it up last November from someone on my local Craigslist. It wasn’t very close to where I live, but was close to a family friend that I had to go visit anyways. So after watching the posting on Craigslist for a few weeks and seeing it getting...
(if he is still reading BCN forums) – I got a new old stock / open box Casing Power MPT-301 PSU on eBay for $4 total. 
Comment