exxos's Atari, Amiga & retro forum

Hey guys,

I've been recently getting in to SGI hardware and a friend of mine is trying to find out what a certain part of his PSU is, perhaps someone here can help? I'll pass it on

Here is the link:
https://forums.irix.cc/thread-1065.html

Cheers

Well it looks like some sort of bus bar running through it, but I think you'd need to remove the 2 yellow halves to expose exactly what it is.

Those yellow parts look like they're iron, so they could be magnets or mild steel. Maybe some sort of inductor for smoothing out high frequencies?

stephen_usher wrote: 19 Jun 2019 11:35 Those yellow parts look like they're iron, so they could be magnets or mild steel. Maybe some sort of inductor for smoothing out high frequencies?

Could be, and they are clearly split for installation and held together with tape.

Maybe some detail about the material would help...

Is the yellow material solid? Spongy? It isn't really clear in the picture.

Also the 'wrap' around it... is that just empty tape or very thin enamelled wire?

Also is there continuity from one side of the component to the other? (on the metal bar sections)

*shrug* just throwing out questions, lol

Now that I think about it, could it simply be a power rail? I mean that's some real funky arrangement of closely packed boards there... what if the yellow 'stuff' is just insulation around a pretty high current power rail?

Seems that it may have been a surface mount resettable fuse...

Those fuses are for PCB mounting, and those are much smaller, also those fuses would probably not smell.

If I were to guess it would also be a buss bar, just measure the top and the bottom piece of metal and it will probably be fully conductive.

The defective part will probably be something else, as you need to open it up to repair it anyway , you should probably do so and have a better look.