Re: Corsair CX400W 5vsb goes into safety loop



If you check my original post above, you'll see the original ones are not MCZs but stock OST RLSes w/ 10+ years which I replaced preemtively (w/ the MCZs) together with the two failed OST RLX caps (the blue ones).

What PeteS in CA conveyed makes a lot of sense (ultra low ESRs where we had low ESRs, water-based electrolytes), so that's why I mentioned I was considering replacing the MCZs again sometime in the future.

Tx....

Re: Corsair CX400W 5vsb goes into safety loop



In my previous post I replied I confirmed the RLXs were ultra-low esrs, I just didn't quote you as I replying to a previous message.

Appreciate your and Sam's input on this. Thanks again....

Re: Corsair CX400W 5vsb goes into safety loop



Many thanks for the feedback, I was not aware of these potential issues w/ ultra-low ESR caps in SMPS, and it does make a lot of sense. These RLXs are indeed ultra-low ESRs.

I'll look into removing the MCZs in the upcoming months then. I'll see if I can find KZEs or KZHs around, would those be better replacements? Thanks again....

A bit off-topic but I just wanted to share my experience with this power supply. I've owned it for almost 10 years now with moderate usage (daily, but no OC). Had to replace the fan and the OST RLX series caps (the blue ones), which failed on me twice (one cap was bloated, the other one was bad but didn't show visual signs).

I read somewhere in the forum that these blue OSTs were crap, and I can confirm I had two failures. Of course I've been using them for a long time, but still...

I replaced the first one with Nippon Chemicon KY series (the only good ones I could...