🚀 go-pugleaf

<Summary: here's one way to fix it, are there better ways?>

I have an early 520 ST with the new ROMS and the 1Meg upgrade.
For the past month (since the ROM upgrade), the system has been
crashing frequently.  The crashes have come in the form of lockups,
spontaneous resets and the disk suddenly appearing to have nothing on it.
None of these things were permanently fatal; time, repowering
or jarring the ST would temporarily fix the problem.

Anyway, after much fooling around, I discovered
that the voltage to my ICs was low (about 4.8 volts).
I assume the extra bank of RAMs and extra ROMS (it was shipped with
just the two) caused excessive current drain.
In poking around, I noticed there was a choke in the path of the
5 volts that was not in the developer's kit schematics
(L29 or L39 I think).  This choke had a DC resistance of about
1/2 ohm and with my system had a voltage drop of about .4 volts
under load.  My current fix to the problem was to place another
choke (of high AC impedence and about 1/2 ohm DC impedence) in
parallel with the first.  This reduced the DC drop across the
inductor and raised my IC voltages to 5.0 volts.

The questions- Do all STs have this inductor?  What's it for?
Any idea of what it's value is supposed to be (both DC and AC impedance)?
Am I effecting anything else by changing the value of this inductor?
Is my problem really a low voltage coming in from my power supply
(I have the older style power supply), or is it that inductor?

The system has behaved much better since I made the change, but I'd
love to know if there's a better/safer fix!

Thanks!
	Walt Christmas
	AT&T Denver
	...!druhi!wpc