At 12:58 AM 15/03/03 +0100, Tina Holm  wrote:
>At 14:31 -0800 14/03/03, Aaron Willems wrote:
>>I don't know. I have never seen a computer that could not boot even if
>>the pram battery was bad,
>
>Some Mac models use the pram battery power to send the first signal to the
>power supply, thus will not boot at all with a dead pram battery. 

I've got a Quadra 660 with a dead battery (too expensive here to replace).
I power it on, black screen. Wait a few seconds, power off, then on again,
and it boots (into 1956). The battery charges a capacitor, but failing that
the mains will do it. Other models may handle this differently.



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