Re: Powerware 9120 Online UPS
Don't bother with the large caps, those rarely fail (unless there's like 80+ °C and you use for for decades 24/7).
You can try to replace KME with LE, they have slightly lower ESR but still higher than low-ESR series do, that may work OK.
Doesn't the UPS drive the fan by its own regulator?
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