Cody wrote:
>Well, it looks like the mother board has decided it's had enough. I had
>written to the list a few week ago about my powertower pro 250 unexpectantly
>shutting down. I yanked every last add-on component and started testing it
>with the original set-up, nothing. I believe the culprit was the Newer
>Technology 400Mhz card that was installed. I had suspected it might have
>been the power supply at first, but when I swapped that out and then put the
>card back in, the machine had trouble accpeting power again. It would
>initially fire up and then shutdown again. But that doesn't matter anyway
>because it will not run, period. I believe the motherboard has fried itself.
>I pulled the cache card, that didn't work. CUDA, nothing. Original RAM only,
>nothing. New RAM only, nothing. Different hard drive, nothing. No start-up
>chime. No hard drive recognition, no CD-ROM recognition. Anybody got a
>motherboard for sale?
I trust you went back to the original daughtercard in your tests of the
motherboard ie.
the 604e PCC 250 that came with the machine?
If not, then do so or try and find one to carry out that test before buying
a new mobo.
no startup chime means that the bus inspection being carried out by ROM on
startup isn't
getting past the CPU inspection stage...ie doesn't get to the ram
inspection stage to give a
car crash warning.
If so, you can swap your mobo for $219.99 (6 month warranty) @
http://www.galaxyhp.com/replogicpc.html
(mind you, that's more money than I have seen the whole computer sell for
at times on eBay)
...at the risk of sounding like a broken record, I have often suggested the
inline cache dimm as
a troublesome component on 604e equipped PowerComputing machines.
I expect that we will also find that G3 cards, which have the cache mounted
on the 'backside'
of the CPU, can also fail due to damage to the cache component, which, like
ram, is susceptible
to damage from static electricity.
A guru on one of the lowendmac sites once explained that damage can occur
to ram components quite easily, and that the damage might not manifest
itself as a failure immediately.
Cheers...Michael
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