> On Wed, Dec 08, 2004 at 03:05:52PM +0100, Timo Sch=F6ler wrote:
>> yip,
>>
>> could be an empty CMOS battery... try to disconnect it from the logic
>> board and then (leaving it disconnected) power up the machine.
>>
>> an almost-empty backup battery may puzzle the NVRAM that leads the
>> machine to be dead.
>
> could it make it not power up at all ?

yes. if you connect a healthy battery to it, make sure to zap the PRAM=20=

(option-apple-p-r)...

> Anyway I tried this, but it didn't help: the PSU still won't start=20
> (the fans
> don't spin up, and no significant voltage comes out on the disk=20
> connectors).
>
> On Wed, Dec 08, 2004 at 09:11:17AM -0500, Tim Kelly wrote:
>> Yes. Radio Shack calls the pram batteries 1/2 AA "double A" The=20
>> lifetime of
>> batteries in second generation PCI Macs is about three years,=20
>> sometimes
>> less.However, before spending $14 or so, double check your power cord=20=

>> and
>> the related items.
>
> The power cord is OK, I connected a PC to it to test (and tried 2=20
> known-working
> cords). Do you know what voltages these pram batteries are supposed to
> deliver ? here I have about 1V, which looks way too low. But it should=20=

> be
> possible to connect standart batteries (at last for testing), the=20
> batterie
> connector isn't that special.

it's 3,6 volts.

--=20
mit vorz=FCglichster Hochachtung/best regards,

Timo Sch=F6ler
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