> On Mar 29, 2020, at 2:14 PM, Robert Armstrong via cctech
> <cct...@classiccmp.org> wrote:
>
>> Maciej W. Rozycki <ma...@linux-mips.org> wrote:
>> numerous Chemi-Con SXF parts scattered across
>> all boards, some leaking
>
> Yeah, mine is full of "Nippon Chemi-Con" electrolytic too.
>
> What about just gutting the PS chassis and sticking in an ATX power supply?
> I don't know how the maximum current per output breaks down, but as I
> understand it the H7874 is only a 600W supply. That's not a problem for an
> ATX supply, and it would have all the required output voltages. You'd have
> to run the cabinet fans at a fixed speed and you'd lose the power control bus
> feature, but that's not a show stopper.
>
> Actually my unit is in an R400x chassis full of RF drives, so I believe I
> only need +12 and +5. I don't think the 3.3v and -12 are used in that case.
> I wonder how much current I really need for the drives? I should look that
> up and I might be able to find a surplus dual output supply that would do the
> job.
I had a similar thought for a PRO supply that blew its input filter (of all
things). It does +5, +12, and -12. The -12 is needed at least for RS232.
paul
