On Apr 11, 2013, at 9:45 PM, Liam Proven <lproven at gmail.com> wrote:
On 12 April 2013 02:41, David Riley <fraveydank at
gmail.com> wrote:
I had forgotten about those batteries. Man, those machines
were a pain. The web seems to agree about the booting
thing, though I've found that with a lot of Macs that will
give a chime but not boot all the way when the battery is
dead, they'll boot if you do a restart (with the button if
your machine has one, or cmd-ctrl-power on the keyboard
otherwise). My LC475 does that, for example.
Aha! I've seen that too. Did not realise that was the cause.
I mostly see it in PMU-based machines, which mostly means
NewWorld machines, but not exclusively. The LC475, being
a 68K machine, is obviously not a PMU machine, but it had
some issues booting cold if the battery was dead. I was
always able to boot it (as well as a lot of later Macs
with the same issue) with a force reset/warm boot.
The 6400 series was near the end of the line for the
OldWorld architecture. It wouldn't surprise me if there
weren't some oddball architectural features in there. Do
I recall correctly that the slotted motherboard is pretty
much the same form factor as the Quadra/LC 630 with the
weird card-edge connector for the I/O?
- Dave