[ale] OT - hardware problem

Mike Harrison cluon at geeklabs.com
Mon Oct 11 20:06:52 EDT 2010


On Mon, 11 Oct 2010, Joe Knapka wrote:

> I have a couple old mobos around, from which I think I can harvest
> enough good caps to fix up the broken one. This is gonna be fun!
>
> Out of curiosity, how close do I need to be on the cap values?  There
> are 5  3300uF ones on the broken board, and I found *four* good 3300uF
> ones on an old Celeron mobo.  The next closest one I can find to
> harvest is 2000uF. Y'all think that would work OK?  Maybe I can leave

I'd fudge a little bigger rather than smaller in an emergency,
or if I had nothing to lose in trying.

ie: 3500-4000 to replace a 3300..

The issue might be that 2000 would not be enough
and either blow soon or cause other things to
and 4000 might draw some high initial current
and/or change some inductive/capacitive harmony.

You are way over the value of your labor, but seem to
be having a lot of fun. Good luck!

Note: 2 * 2000uf in parallel is 4000uf.




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