Re: Focus drive problem

[rob <rob@nospam.net>]

On Sat, 19 Jan 2008 02:27:21 -0800, "Michael J. Mahon"
<mjmahon@aol.com> wrote:

>rob wrote:
>> For some reason I'm not able to boot System 6.0 successfully with my
>> Focus Drive (340MB IDE) plugged into Slot#7 on a Rom 3 IIgs.  When I
>> move it to a lower numbered slot (like 4) it boots fine.
>> 
>> Any ideas why this occurs ?  I thought the drive might be suffering
>> from stiction but it appears ok.
>
>One possibility is marginal power supply voltage under load or marginal
>decoupling on the card (to supply transient currents).
>
>Moving the card down puts it somewhat closer to the power supply
>connections and the main-board decoupling capacitors.

That certainly sounds plausible. My system is pretty well loaded up
with a TranswarpGS, Z-80 card, 8MB mem expansion and superdrive card.