MMM problem

[J57ltr]

Originally Posted by BrianG

(and that stinks).

Like peanut oil


Yup,

And what got us was that all of a sudden we had a rash of power supplies come back, then it was 10 to 15 a week. After reaserching it we couldn't figure it out the ones used were the same MTBF and temp rating (5K hours @ 105C IIRC) as the ones we use now. When we first started getting them in most were out of warranty, so we would replace the whole PS and send them back (to the customer) then we started getting them after 6 months or less. Then it was back and forth with our source and finally decided to use the other cap.

I remember having a couple of computer power supplies Pop on me, took them apart and had one that the case had completly came out and was rattling around with the "streamer" of the plates and paper in it.

My Daughters Barbie DVD player started acting weird and acting up so I took it apart and found a pooched cap 16V 1000uf (and her "Enchanted" DVD the only one she has ever "lost", not bad for a 4 year old), so I replaced it and it's working great now.

I haven't had a motherboard (cap related problem), but I don't upgrade my computer every 30 minutes either. Plus I usually build it myself using an Acer or my last one was a popular brand from Frys (can't remember the name).

I do a lot of tech support calls so I always ask the customers tech to check the power supply if I suspect it's the problem and ask if the top of the caps are flat or domed and if they see anything leaking fron the slits on top, although sometimes I have seen them with the rubber plug where the leads come out actually push the shell up over the rubber part.

Jeff